mirror of
https://git.proxmox.com/git/mirror_iproute2
synced 2025-11-04 02:11:27 +00:00
3519 lines
76 KiB
C
3519 lines
76 KiB
C
/*
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* ss.c "sockstat", socket statistics
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <syslog.h>
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <sys/socket.h>
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#include <sys/uio.h>
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#include <netinet/in.h>
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#include <string.h>
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#include <errno.h>
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#include <netdb.h>
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#include <arpa/inet.h>
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#include <dirent.h>
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#include <fnmatch.h>
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#include <getopt.h>
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#include "utils.h"
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#include "rt_names.h"
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#include "ll_map.h"
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#include "libnetlink.h"
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#include "SNAPSHOT.h"
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#include <linux/tcp.h>
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#include <linux/sock_diag.h>
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#include <linux/inet_diag.h>
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#include <linux/unix_diag.h>
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#include <linux/netdevice.h> /* for MAX_ADDR_LEN */
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#include <linux/filter.h>
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#include <linux/packet_diag.h>
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#include <linux/netlink_diag.h>
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int resolve_hosts = 0;
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int resolve_services = 1;
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int preferred_family = AF_UNSPEC;
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int show_options = 0;
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int show_details = 0;
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int show_users = 0;
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int show_mem = 0;
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int show_tcpinfo = 0;
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int show_bpf = 0;
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int netid_width;
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int state_width;
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int addrp_width;
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int addr_width;
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int serv_width;
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int screen_width;
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static const char *TCP_PROTO = "tcp";
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static const char *UDP_PROTO = "udp";
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static const char *RAW_PROTO = "raw";
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static const char *dg_proto = NULL;
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enum
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{
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TCP_DB,
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DCCP_DB,
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UDP_DB,
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RAW_DB,
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UNIX_DG_DB,
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UNIX_ST_DB,
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UNIX_SQ_DB,
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PACKET_DG_DB,
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PACKET_R_DB,
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NETLINK_DB,
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MAX_DB
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};
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#define PACKET_DBM ((1<<PACKET_DG_DB)|(1<<PACKET_R_DB))
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#define UNIX_DBM ((1<<UNIX_DG_DB)|(1<<UNIX_ST_DB)|(1<<UNIX_SQ_DB))
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#define ALL_DB ((1<<MAX_DB)-1)
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enum {
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SS_UNKNOWN,
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SS_ESTABLISHED,
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SS_SYN_SENT,
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SS_SYN_RECV,
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SS_FIN_WAIT1,
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SS_FIN_WAIT2,
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SS_TIME_WAIT,
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SS_CLOSE,
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SS_CLOSE_WAIT,
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SS_LAST_ACK,
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SS_LISTEN,
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SS_CLOSING,
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SS_MAX
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};
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#define SS_ALL ((1<<SS_MAX)-1)
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#include "ssfilter.h"
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struct filter
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{
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int dbs;
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int states;
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int families;
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struct ssfilter *f;
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};
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struct filter default_filter = {
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.dbs = ~0,
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.states = SS_ALL & ~((1<<SS_LISTEN)|(1<<SS_CLOSE)|(1<<SS_TIME_WAIT)|(1<<SS_SYN_RECV)),
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.families= (1<<AF_INET)|(1<<AF_INET6),
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};
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struct filter current_filter;
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static FILE *generic_proc_open(const char *env, const char *name)
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{
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const char *p = getenv(env);
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char store[128];
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if (!p) {
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p = getenv("PROC_ROOT") ? : "/proc";
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snprintf(store, sizeof(store)-1, "%s/%s", p, name);
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p = store;
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}
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return fopen(p, "r");
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}
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static FILE *net_tcp_open(void)
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{
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return generic_proc_open("PROC_NET_TCP", "net/tcp");
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}
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static FILE *net_tcp6_open(void)
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{
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return generic_proc_open("PROC_NET_TCP6", "net/tcp6");
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}
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static FILE *net_udp_open(void)
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{
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return generic_proc_open("PROC_NET_UDP", "net/udp");
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}
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static FILE *net_udp6_open(void)
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{
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return generic_proc_open("PROC_NET_UDP6", "net/udp6");
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}
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static FILE *net_raw_open(void)
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{
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return generic_proc_open("PROC_NET_RAW", "net/raw");
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}
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static FILE *net_raw6_open(void)
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{
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return generic_proc_open("PROC_NET_RAW6", "net/raw6");
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}
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static FILE *net_unix_open(void)
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{
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return generic_proc_open("PROC_NET_UNIX", "net/unix");
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}
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static FILE *net_packet_open(void)
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{
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return generic_proc_open("PROC_NET_PACKET", "net/packet");
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}
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static FILE *net_netlink_open(void)
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{
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return generic_proc_open("PROC_NET_NETLINK", "net/netlink");
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}
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static FILE *slabinfo_open(void)
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{
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return generic_proc_open("PROC_SLABINFO", "slabinfo");
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}
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static FILE *net_sockstat_open(void)
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{
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return generic_proc_open("PROC_NET_SOCKSTAT", "net/sockstat");
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}
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static FILE *net_sockstat6_open(void)
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{
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return generic_proc_open("PROC_NET_SOCKSTAT6", "net/sockstat6");
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}
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static FILE *net_snmp_open(void)
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{
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return generic_proc_open("PROC_NET_SNMP", "net/snmp");
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}
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static FILE *ephemeral_ports_open(void)
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{
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return generic_proc_open("PROC_IP_LOCAL_PORT_RANGE", "sys/net/ipv4/ip_local_port_range");
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}
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struct user_ent {
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struct user_ent *next;
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unsigned int ino;
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int pid;
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int fd;
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char process[0];
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};
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#define USER_ENT_HASH_SIZE 256
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struct user_ent *user_ent_hash[USER_ENT_HASH_SIZE];
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static int user_ent_hashfn(unsigned int ino)
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{
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int val = (ino >> 24) ^ (ino >> 16) ^ (ino >> 8) ^ ino;
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return val & (USER_ENT_HASH_SIZE - 1);
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}
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static void user_ent_add(unsigned int ino, const char *process, int pid, int fd)
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{
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struct user_ent *p, **pp;
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int str_len;
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str_len = strlen(process) + 1;
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p = malloc(sizeof(struct user_ent) + str_len);
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if (!p)
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abort();
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p->next = NULL;
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p->ino = ino;
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p->pid = pid;
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p->fd = fd;
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strcpy(p->process, process);
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pp = &user_ent_hash[user_ent_hashfn(ino)];
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p->next = *pp;
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*pp = p;
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}
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static void user_ent_hash_build(void)
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{
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const char *root = getenv("PROC_ROOT") ? : "/proc/";
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struct dirent *d;
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char name[1024];
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int nameoff;
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DIR *dir;
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strcpy(name, root);
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if (strlen(name) == 0 || name[strlen(name)-1] != '/')
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strcat(name, "/");
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nameoff = strlen(name);
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dir = opendir(name);
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if (!dir)
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return;
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while ((d = readdir(dir)) != NULL) {
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struct dirent *d1;
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char process[16];
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int pid, pos;
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DIR *dir1;
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char crap;
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if (sscanf(d->d_name, "%d%c", &pid, &crap) != 1)
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continue;
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sprintf(name + nameoff, "%d/fd/", pid);
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pos = strlen(name);
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if ((dir1 = opendir(name)) == NULL)
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continue;
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process[0] = '\0';
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while ((d1 = readdir(dir1)) != NULL) {
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const char *pattern = "socket:[";
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unsigned int ino;
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char lnk[64];
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int fd;
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ssize_t link_len;
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if (sscanf(d1->d_name, "%d%c", &fd, &crap) != 1)
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continue;
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sprintf(name+pos, "%d", fd);
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link_len = readlink(name, lnk, sizeof(lnk)-1);
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if (link_len == -1)
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continue;
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lnk[link_len] = '\0';
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if (strncmp(lnk, pattern, strlen(pattern)))
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continue;
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sscanf(lnk, "socket:[%u]", &ino);
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if (process[0] == '\0') {
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char tmp[1024];
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FILE *fp;
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snprintf(tmp, sizeof(tmp), "%s/%d/stat", root, pid);
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if ((fp = fopen(tmp, "r")) != NULL) {
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fscanf(fp, "%*d (%[^)])", process);
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fclose(fp);
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}
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}
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user_ent_add(ino, process, pid, fd);
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}
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closedir(dir1);
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}
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closedir(dir);
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}
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static int find_users(unsigned ino, char *buf, int buflen)
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{
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struct user_ent *p;
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int cnt = 0;
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char *ptr;
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if (!ino)
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return 0;
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p = user_ent_hash[user_ent_hashfn(ino)];
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ptr = buf;
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while (p) {
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if (p->ino != ino)
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goto next;
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if (ptr - buf >= buflen - 1)
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break;
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snprintf(ptr, buflen - (ptr - buf),
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"(\"%s\",%d,%d),",
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p->process, p->pid, p->fd);
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ptr += strlen(ptr);
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cnt++;
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next:
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p = p->next;
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}
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if (ptr != buf)
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ptr[-1] = '\0';
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return cnt;
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}
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/* Get stats from slab */
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struct slabstat
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{
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int socks;
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int tcp_ports;
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int tcp_tws;
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int tcp_syns;
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int skbs;
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};
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struct slabstat slabstat;
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static const char *slabstat_ids[] =
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{
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"sock",
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"tcp_bind_bucket",
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"tcp_tw_bucket",
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"tcp_open_request",
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"skbuff_head_cache",
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};
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static int get_slabstat(struct slabstat *s)
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{
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char buf[256];
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FILE *fp;
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int cnt;
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memset(s, 0, sizeof(*s));
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fp = slabinfo_open();
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if (!fp)
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return -1;
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cnt = sizeof(*s)/sizeof(int);
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fgets(buf, sizeof(buf), fp);
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while(fgets(buf, sizeof(buf), fp) != NULL) {
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int i;
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for (i=0; i<sizeof(slabstat_ids)/sizeof(slabstat_ids[0]); i++) {
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if (memcmp(buf, slabstat_ids[i], strlen(slabstat_ids[i])) == 0) {
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sscanf(buf, "%*s%d", ((int *)s) + i);
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cnt--;
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break;
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}
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}
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if (cnt <= 0)
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break;
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}
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fclose(fp);
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return 0;
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}
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static const char *sstate_name[] = {
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"UNKNOWN",
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[SS_ESTABLISHED] = "ESTAB",
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[SS_SYN_SENT] = "SYN-SENT",
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[SS_SYN_RECV] = "SYN-RECV",
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[SS_FIN_WAIT1] = "FIN-WAIT-1",
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[SS_FIN_WAIT2] = "FIN-WAIT-2",
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[SS_TIME_WAIT] = "TIME-WAIT",
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[SS_CLOSE] = "UNCONN",
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[SS_CLOSE_WAIT] = "CLOSE-WAIT",
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[SS_LAST_ACK] = "LAST-ACK",
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[SS_LISTEN] = "LISTEN",
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[SS_CLOSING] = "CLOSING",
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};
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static const char *sstate_namel[] = {
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"UNKNOWN",
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[SS_ESTABLISHED] = "established",
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[SS_SYN_SENT] = "syn-sent",
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[SS_SYN_RECV] = "syn-recv",
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[SS_FIN_WAIT1] = "fin-wait-1",
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[SS_FIN_WAIT2] = "fin-wait-2",
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[SS_TIME_WAIT] = "time-wait",
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[SS_CLOSE] = "unconnected",
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[SS_CLOSE_WAIT] = "close-wait",
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[SS_LAST_ACK] = "last-ack",
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[SS_LISTEN] = "listening",
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[SS_CLOSING] = "closing",
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};
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struct tcpstat
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{
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inet_prefix local;
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inet_prefix remote;
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int lport;
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int rport;
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int state;
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int rq, wq;
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int timer;
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int timeout;
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int retrs;
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unsigned ino;
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int probes;
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unsigned uid;
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int refcnt;
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unsigned long long sk;
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int rto, ato, qack, cwnd, ssthresh;
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};
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static const char *tmr_name[] = {
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"off",
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"on",
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"keepalive",
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"timewait",
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"persist",
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"unknown"
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};
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static const char *print_ms_timer(int timeout)
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{
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static char buf[64];
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int secs, msecs, minutes;
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if (timeout < 0)
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timeout = 0;
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secs = timeout/1000;
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minutes = secs/60;
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secs = secs%60;
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msecs = timeout%1000;
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buf[0] = 0;
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if (minutes) {
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msecs = 0;
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snprintf(buf, sizeof(buf)-16, "%dmin", minutes);
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if (minutes > 9)
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secs = 0;
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}
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if (secs) {
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if (secs > 9)
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msecs = 0;
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sprintf(buf+strlen(buf), "%d%s", secs, msecs ? "." : "sec");
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}
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if (msecs)
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sprintf(buf+strlen(buf), "%03dms", msecs);
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return buf;
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}
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static const char *print_hz_timer(int timeout)
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{
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int hz = get_user_hz();
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return print_ms_timer(((timeout*1000) + hz-1)/hz);
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}
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struct scache
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{
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struct scache *next;
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int port;
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char *name;
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const char *proto;
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};
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struct scache *rlist;
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static void init_service_resolver(void)
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{
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char buf[128];
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FILE *fp = popen("/usr/sbin/rpcinfo -p 2>/dev/null", "r");
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if (fp) {
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fgets(buf, sizeof(buf), fp);
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while (fgets(buf, sizeof(buf), fp) != NULL) {
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unsigned int progn, port;
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char proto[128], prog[128];
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if (sscanf(buf, "%u %*d %s %u %s", &progn, proto,
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&port, prog+4) == 4) {
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struct scache *c = malloc(sizeof(*c));
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if (c) {
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c->port = port;
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memcpy(prog, "rpc.", 4);
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c->name = strdup(prog);
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if (strcmp(proto, TCP_PROTO) == 0)
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c->proto = TCP_PROTO;
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else if (strcmp(proto, UDP_PROTO) == 0)
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c->proto = UDP_PROTO;
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else
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c->proto = NULL;
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c->next = rlist;
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rlist = c;
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}
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}
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}
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pclose(fp);
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}
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}
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|
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static int ip_local_port_min, ip_local_port_max;
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|
|
/* Even do not try default linux ephemeral port ranges:
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* default /etc/services contains so much of useless crap
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|
* wouldbe "allocated" to this area that resolution
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|
* is really harmful. I shrug each time when seeing
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* "socks" or "cfinger" in dumps.
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|
*/
|
|
static int is_ephemeral(int port)
|
|
{
|
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if (!ip_local_port_min) {
|
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FILE *f = ephemeral_ports_open();
|
|
if (f) {
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fscanf(f, "%d %d",
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&ip_local_port_min, &ip_local_port_max);
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fclose(f);
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|
} else {
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ip_local_port_min = 1024;
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ip_local_port_max = 4999;
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}
|
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}
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|
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return (port >= ip_local_port_min && port<= ip_local_port_max);
|
|
}
|
|
|
|
|
|
static const char *__resolve_service(int port)
|
|
{
|
|
struct scache *c;
|
|
|
|
for (c = rlist; c; c = c->next) {
|
|
if (c->port == port && c->proto == dg_proto)
|
|
return c->name;
|
|
}
|
|
|
|
if (!is_ephemeral(port)) {
|
|
static int notfirst;
|
|
struct servent *se;
|
|
if (!notfirst) {
|
|
setservent(1);
|
|
notfirst = 1;
|
|
}
|
|
se = getservbyport(htons(port), dg_proto);
|
|
if (se)
|
|
return se->s_name;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
static const char *resolve_service(int port)
|
|
{
|
|
static char buf[128];
|
|
static struct scache cache[256];
|
|
|
|
if (port == 0) {
|
|
buf[0] = '*';
|
|
buf[1] = 0;
|
|
return buf;
|
|
}
|
|
|
|
if (resolve_services) {
|
|
if (dg_proto == RAW_PROTO) {
|
|
return inet_proto_n2a(port, buf, sizeof(buf));
|
|
} else {
|
|
struct scache *c;
|
|
const char *res;
|
|
int hash = (port^(((unsigned long)dg_proto)>>2))&255;
|
|
|
|
for (c = &cache[hash]; c; c = c->next) {
|
|
if (c->port == port &&
|
|
c->proto == dg_proto) {
|
|
if (c->name)
|
|
return c->name;
|
|
goto do_numeric;
|
|
}
|
|
}
|
|
|
|
if ((res = __resolve_service(port)) != NULL) {
|
|
if ((c = malloc(sizeof(*c))) == NULL)
|
|
goto do_numeric;
|
|
} else {
|
|
c = &cache[hash];
|
|
if (c->name)
|
|
free(c->name);
|
|
}
|
|
c->port = port;
|
|
c->name = NULL;
|
|
c->proto = dg_proto;
|
|
if (res) {
|
|
c->name = strdup(res);
|
|
c->next = cache[hash].next;
|
|
cache[hash].next = c;
|
|
}
|
|
if (c->name)
|
|
return c->name;
|
|
}
|
|
}
|
|
|
|
do_numeric:
|
|
sprintf(buf, "%u", port);
|
|
return buf;
|
|
}
|
|
|
|
static void formatted_print(const inet_prefix *a, int port)
|
|
{
|
|
char buf[1024];
|
|
const char *ap = buf;
|
|
int est_len;
|
|
|
|
est_len = addr_width;
|
|
|
|
if (a->family == AF_INET) {
|
|
if (a->data[0] == 0) {
|
|
buf[0] = '*';
|
|
buf[1] = 0;
|
|
} else {
|
|
ap = format_host(AF_INET, 4, a->data, buf, sizeof(buf));
|
|
}
|
|
} else {
|
|
ap = format_host(a->family, 16, a->data, buf, sizeof(buf));
|
|
est_len = strlen(ap);
|
|
if (est_len <= addr_width)
|
|
est_len = addr_width;
|
|
else
|
|
est_len = addr_width + ((est_len-addr_width+3)/4)*4;
|
|
}
|
|
printf("%*s:%-*s ", est_len, ap, serv_width, resolve_service(port));
|
|
}
|
|
|
|
struct aafilter
|
|
{
|
|
inet_prefix addr;
|
|
int port;
|
|
struct aafilter *next;
|
|
};
|
|
|
|
static int inet2_addr_match(const inet_prefix *a, const inet_prefix *p,
|
|
int plen)
|
|
{
|
|
if (!inet_addr_match(a, p, plen))
|
|
return 0;
|
|
|
|
/* Cursed "v4 mapped" addresses: v4 mapped socket matches
|
|
* pure IPv4 rule, but v4-mapped rule selects only v4-mapped
|
|
* sockets. Fair? */
|
|
if (p->family == AF_INET && a->family == AF_INET6) {
|
|
if (a->data[0] == 0 && a->data[1] == 0 &&
|
|
a->data[2] == htonl(0xffff)) {
|
|
inet_prefix tmp = *a;
|
|
tmp.data[0] = a->data[3];
|
|
return inet_addr_match(&tmp, p, plen);
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int unix_match(const inet_prefix *a, const inet_prefix *p)
|
|
{
|
|
char *addr, *pattern;
|
|
memcpy(&addr, a->data, sizeof(addr));
|
|
memcpy(&pattern, p->data, sizeof(pattern));
|
|
if (pattern == NULL)
|
|
return 1;
|
|
if (addr == NULL)
|
|
addr = "";
|
|
return !fnmatch(pattern, addr, 0);
|
|
}
|
|
|
|
static int run_ssfilter(struct ssfilter *f, struct tcpstat *s)
|
|
{
|
|
switch (f->type) {
|
|
case SSF_S_AUTO:
|
|
{
|
|
static int low, high=65535;
|
|
|
|
if (s->local.family == AF_UNIX) {
|
|
char *p;
|
|
memcpy(&p, s->local.data, sizeof(p));
|
|
return p == NULL || (p[0] == '@' && strlen(p) == 6 &&
|
|
strspn(p+1, "0123456789abcdef") == 5);
|
|
}
|
|
if (s->local.family == AF_PACKET)
|
|
return s->lport == 0 && s->local.data == 0;
|
|
if (s->local.family == AF_NETLINK)
|
|
return s->lport < 0;
|
|
|
|
if (!low) {
|
|
FILE *fp = ephemeral_ports_open();
|
|
if (fp) {
|
|
fscanf(fp, "%d%d", &low, &high);
|
|
fclose(fp);
|
|
}
|
|
}
|
|
return s->lport >= low && s->lport <= high;
|
|
}
|
|
case SSF_DCOND:
|
|
{
|
|
struct aafilter *a = (void*)f->pred;
|
|
if (a->addr.family == AF_UNIX)
|
|
return unix_match(&s->remote, &a->addr);
|
|
if (a->port != -1 && a->port != s->rport)
|
|
return 0;
|
|
if (a->addr.bitlen) {
|
|
do {
|
|
if (!inet2_addr_match(&s->remote, &a->addr, a->addr.bitlen))
|
|
return 1;
|
|
} while ((a = a->next) != NULL);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
case SSF_SCOND:
|
|
{
|
|
struct aafilter *a = (void*)f->pred;
|
|
if (a->addr.family == AF_UNIX)
|
|
return unix_match(&s->local, &a->addr);
|
|
if (a->port != -1 && a->port != s->lport)
|
|
return 0;
|
|
if (a->addr.bitlen) {
|
|
do {
|
|
if (!inet2_addr_match(&s->local, &a->addr, a->addr.bitlen))
|
|
return 1;
|
|
} while ((a = a->next) != NULL);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
case SSF_D_GE:
|
|
{
|
|
struct aafilter *a = (void*)f->pred;
|
|
return s->rport >= a->port;
|
|
}
|
|
case SSF_D_LE:
|
|
{
|
|
struct aafilter *a = (void*)f->pred;
|
|
return s->rport <= a->port;
|
|
}
|
|
case SSF_S_GE:
|
|
{
|
|
struct aafilter *a = (void*)f->pred;
|
|
return s->lport >= a->port;
|
|
}
|
|
case SSF_S_LE:
|
|
{
|
|
struct aafilter *a = (void*)f->pred;
|
|
return s->lport <= a->port;
|
|
}
|
|
|
|
/* Yup. It is recursion. Sorry. */
|
|
case SSF_AND:
|
|
return run_ssfilter(f->pred, s) && run_ssfilter(f->post, s);
|
|
case SSF_OR:
|
|
return run_ssfilter(f->pred, s) || run_ssfilter(f->post, s);
|
|
case SSF_NOT:
|
|
return !run_ssfilter(f->pred, s);
|
|
default:
|
|
abort();
|
|
}
|
|
}
|
|
|
|
/* Relocate external jumps by reloc. */
|
|
static void ssfilter_patch(char *a, int len, int reloc)
|
|
{
|
|
while (len > 0) {
|
|
struct inet_diag_bc_op *op = (struct inet_diag_bc_op*)a;
|
|
if (op->no == len+4)
|
|
op->no += reloc;
|
|
len -= op->yes;
|
|
a += op->yes;
|
|
}
|
|
if (len < 0)
|
|
abort();
|
|
}
|
|
|
|
static int ssfilter_bytecompile(struct ssfilter *f, char **bytecode)
|
|
{
|
|
switch (f->type) {
|
|
case SSF_S_AUTO:
|
|
{
|
|
if (!(*bytecode=malloc(4))) abort();
|
|
((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_AUTO, 4, 8 };
|
|
return 4;
|
|
}
|
|
case SSF_DCOND:
|
|
case SSF_SCOND:
|
|
{
|
|
struct aafilter *a = (void*)f->pred;
|
|
struct aafilter *b;
|
|
char *ptr;
|
|
int code = (f->type == SSF_DCOND ? INET_DIAG_BC_D_COND : INET_DIAG_BC_S_COND);
|
|
int len = 0;
|
|
|
|
for (b=a; b; b=b->next) {
|
|
len += 4 + sizeof(struct inet_diag_hostcond);
|
|
if (a->addr.family == AF_INET6)
|
|
len += 16;
|
|
else
|
|
len += 4;
|
|
if (b->next)
|
|
len += 4;
|
|
}
|
|
if (!(ptr = malloc(len))) abort();
|
|
*bytecode = ptr;
|
|
for (b=a; b; b=b->next) {
|
|
struct inet_diag_bc_op *op = (struct inet_diag_bc_op *)ptr;
|
|
int alen = (a->addr.family == AF_INET6 ? 16 : 4);
|
|
int oplen = alen + 4 + sizeof(struct inet_diag_hostcond);
|
|
struct inet_diag_hostcond *cond = (struct inet_diag_hostcond*)(ptr+4);
|
|
|
|
*op = (struct inet_diag_bc_op){ code, oplen, oplen+4 };
|
|
cond->family = a->addr.family;
|
|
cond->port = a->port;
|
|
cond->prefix_len = a->addr.bitlen;
|
|
memcpy(cond->addr, a->addr.data, alen);
|
|
ptr += oplen;
|
|
if (b->next) {
|
|
op = (struct inet_diag_bc_op *)ptr;
|
|
*op = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, len - (ptr-*bytecode)};
|
|
ptr += 4;
|
|
}
|
|
}
|
|
return ptr - *bytecode;
|
|
}
|
|
case SSF_D_GE:
|
|
{
|
|
struct aafilter *x = (void*)f->pred;
|
|
if (!(*bytecode=malloc(8))) abort();
|
|
((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_GE, 8, 12 };
|
|
((struct inet_diag_bc_op*)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
|
|
return 8;
|
|
}
|
|
case SSF_D_LE:
|
|
{
|
|
struct aafilter *x = (void*)f->pred;
|
|
if (!(*bytecode=malloc(8))) abort();
|
|
((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_D_LE, 8, 12 };
|
|
((struct inet_diag_bc_op*)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
|
|
return 8;
|
|
}
|
|
case SSF_S_GE:
|
|
{
|
|
struct aafilter *x = (void*)f->pred;
|
|
if (!(*bytecode=malloc(8))) abort();
|
|
((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_GE, 8, 12 };
|
|
((struct inet_diag_bc_op*)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
|
|
return 8;
|
|
}
|
|
case SSF_S_LE:
|
|
{
|
|
struct aafilter *x = (void*)f->pred;
|
|
if (!(*bytecode=malloc(8))) abort();
|
|
((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_S_LE, 8, 12 };
|
|
((struct inet_diag_bc_op*)*bytecode)[1] = (struct inet_diag_bc_op){ 0, 0, x->port };
|
|
return 8;
|
|
}
|
|
|
|
case SSF_AND:
|
|
{
|
|
char *a1, *a2, *a;
|
|
int l1, l2;
|
|
l1 = ssfilter_bytecompile(f->pred, &a1);
|
|
l2 = ssfilter_bytecompile(f->post, &a2);
|
|
if (!(a = malloc(l1+l2))) abort();
|
|
memcpy(a, a1, l1);
|
|
memcpy(a+l1, a2, l2);
|
|
free(a1); free(a2);
|
|
ssfilter_patch(a, l1, l2);
|
|
*bytecode = a;
|
|
return l1+l2;
|
|
}
|
|
case SSF_OR:
|
|
{
|
|
char *a1, *a2, *a;
|
|
int l1, l2;
|
|
l1 = ssfilter_bytecompile(f->pred, &a1);
|
|
l2 = ssfilter_bytecompile(f->post, &a2);
|
|
if (!(a = malloc(l1+l2+4))) abort();
|
|
memcpy(a, a1, l1);
|
|
memcpy(a+l1+4, a2, l2);
|
|
free(a1); free(a2);
|
|
*(struct inet_diag_bc_op*)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, l2+4 };
|
|
*bytecode = a;
|
|
return l1+l2+4;
|
|
}
|
|
case SSF_NOT:
|
|
{
|
|
char *a1, *a;
|
|
int l1;
|
|
l1 = ssfilter_bytecompile(f->pred, &a1);
|
|
if (!(a = malloc(l1+4))) abort();
|
|
memcpy(a, a1, l1);
|
|
free(a1);
|
|
*(struct inet_diag_bc_op*)(a+l1) = (struct inet_diag_bc_op){ INET_DIAG_BC_JMP, 4, 8 };
|
|
*bytecode = a;
|
|
return l1+4;
|
|
}
|
|
default:
|
|
abort();
|
|
}
|
|
}
|
|
|
|
static int remember_he(struct aafilter *a, struct hostent *he)
|
|
{
|
|
char **ptr = he->h_addr_list;
|
|
int cnt = 0;
|
|
int len;
|
|
|
|
if (he->h_addrtype == AF_INET)
|
|
len = 4;
|
|
else if (he->h_addrtype == AF_INET6)
|
|
len = 16;
|
|
else
|
|
return 0;
|
|
|
|
while (*ptr) {
|
|
struct aafilter *b = a;
|
|
if (a->addr.bitlen) {
|
|
if ((b = malloc(sizeof(*b))) == NULL)
|
|
return cnt;
|
|
*b = *a;
|
|
b->next = a->next;
|
|
a->next = b;
|
|
}
|
|
memcpy(b->addr.data, *ptr, len);
|
|
b->addr.bytelen = len;
|
|
b->addr.bitlen = len*8;
|
|
b->addr.family = he->h_addrtype;
|
|
ptr++;
|
|
cnt++;
|
|
}
|
|
return cnt;
|
|
}
|
|
|
|
static int get_dns_host(struct aafilter *a, const char *addr, int fam)
|
|
{
|
|
static int notfirst;
|
|
int cnt = 0;
|
|
struct hostent *he;
|
|
|
|
a->addr.bitlen = 0;
|
|
if (!notfirst) {
|
|
sethostent(1);
|
|
notfirst = 1;
|
|
}
|
|
he = gethostbyname2(addr, fam == AF_UNSPEC ? AF_INET : fam);
|
|
if (he)
|
|
cnt = remember_he(a, he);
|
|
if (fam == AF_UNSPEC) {
|
|
he = gethostbyname2(addr, AF_INET6);
|
|
if (he)
|
|
cnt += remember_he(a, he);
|
|
}
|
|
return !cnt;
|
|
}
|
|
|
|
static int xll_initted = 0;
|
|
|
|
static void xll_init(void)
|
|
{
|
|
struct rtnl_handle rth;
|
|
if (rtnl_open(&rth, 0) < 0)
|
|
exit(1);
|
|
|
|
ll_init_map(&rth);
|
|
rtnl_close(&rth);
|
|
xll_initted = 1;
|
|
}
|
|
|
|
static const char *xll_index_to_name(int index)
|
|
{
|
|
if (!xll_initted)
|
|
xll_init();
|
|
return ll_index_to_name(index);
|
|
}
|
|
|
|
static int xll_name_to_index(const char *dev)
|
|
{
|
|
if (!xll_initted)
|
|
xll_init();
|
|
return ll_name_to_index(dev);
|
|
}
|
|
|
|
void *parse_hostcond(char *addr)
|
|
{
|
|
char *port = NULL;
|
|
struct aafilter a;
|
|
struct aafilter *res;
|
|
int fam = preferred_family;
|
|
|
|
memset(&a, 0, sizeof(a));
|
|
a.port = -1;
|
|
|
|
if (fam == AF_UNIX || strncmp(addr, "unix:", 5) == 0) {
|
|
char *p;
|
|
a.addr.family = AF_UNIX;
|
|
if (strncmp(addr, "unix:", 5) == 0)
|
|
addr+=5;
|
|
p = strdup(addr);
|
|
a.addr.bitlen = 8*strlen(p);
|
|
memcpy(a.addr.data, &p, sizeof(p));
|
|
goto out;
|
|
}
|
|
|
|
if (fam == AF_PACKET || strncmp(addr, "link:", 5) == 0) {
|
|
a.addr.family = AF_PACKET;
|
|
a.addr.bitlen = 0;
|
|
if (strncmp(addr, "link:", 5) == 0)
|
|
addr+=5;
|
|
port = strchr(addr, ':');
|
|
if (port) {
|
|
*port = 0;
|
|
if (port[1] && strcmp(port+1, "*")) {
|
|
if (get_integer(&a.port, port+1, 0)) {
|
|
if ((a.port = xll_name_to_index(port+1)) <= 0)
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
if (addr[0] && strcmp(addr, "*")) {
|
|
unsigned short tmp;
|
|
a.addr.bitlen = 32;
|
|
if (ll_proto_a2n(&tmp, addr))
|
|
return NULL;
|
|
a.addr.data[0] = ntohs(tmp);
|
|
}
|
|
goto out;
|
|
}
|
|
|
|
if (fam == AF_NETLINK || strncmp(addr, "netlink:", 8) == 0) {
|
|
a.addr.family = AF_NETLINK;
|
|
a.addr.bitlen = 0;
|
|
if (strncmp(addr, "netlink:", 8) == 0)
|
|
addr+=8;
|
|
port = strchr(addr, ':');
|
|
if (port) {
|
|
*port = 0;
|
|
if (port[1] && strcmp(port+1, "*")) {
|
|
if (get_integer(&a.port, port+1, 0)) {
|
|
if (strcmp(port+1, "kernel") == 0)
|
|
a.port = 0;
|
|
else
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
if (addr[0] && strcmp(addr, "*")) {
|
|
a.addr.bitlen = 32;
|
|
if (get_u32(a.addr.data, addr, 0)) {
|
|
if (strcmp(addr, "rtnl") == 0)
|
|
a.addr.data[0] = 0;
|
|
else if (strcmp(addr, "fw") == 0)
|
|
a.addr.data[0] = 3;
|
|
else if (strcmp(addr, "tcpdiag") == 0)
|
|
a.addr.data[0] = 4;
|
|
else
|
|
return NULL;
|
|
}
|
|
}
|
|
goto out;
|
|
}
|
|
|
|
if (strncmp(addr, "inet:", 5) == 0) {
|
|
addr += 5;
|
|
fam = AF_INET;
|
|
} else if (strncmp(addr, "inet6:", 6) == 0) {
|
|
addr += 6;
|
|
fam = AF_INET6;
|
|
}
|
|
|
|
/* URL-like literal [] */
|
|
if (addr[0] == '[') {
|
|
addr++;
|
|
if ((port = strchr(addr, ']')) == NULL)
|
|
return NULL;
|
|
*port++ = 0;
|
|
} else if (addr[0] == '*') {
|
|
port = addr+1;
|
|
} else {
|
|
port = strrchr(strchr(addr, '/') ? : addr, ':');
|
|
}
|
|
if (port && *port) {
|
|
if (*port != ':')
|
|
return NULL;
|
|
*port++ = 0;
|
|
if (*port && *port != '*') {
|
|
if (get_integer(&a.port, port, 0)) {
|
|
struct servent *se1 = NULL;
|
|
struct servent *se2 = NULL;
|
|
if (current_filter.dbs&(1<<UDP_DB))
|
|
se1 = getservbyname(port, UDP_PROTO);
|
|
if (current_filter.dbs&(1<<TCP_DB))
|
|
se2 = getservbyname(port, TCP_PROTO);
|
|
if (se1 && se2 && se1->s_port != se2->s_port) {
|
|
fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
|
|
return NULL;
|
|
}
|
|
if (!se1)
|
|
se1 = se2;
|
|
if (se1) {
|
|
a.port = ntohs(se1->s_port);
|
|
} else {
|
|
struct scache *s;
|
|
for (s = rlist; s; s = s->next) {
|
|
if ((s->proto == UDP_PROTO &&
|
|
(current_filter.dbs&(1<<UDP_DB))) ||
|
|
(s->proto == TCP_PROTO &&
|
|
(current_filter.dbs&(1<<TCP_DB)))) {
|
|
if (s->name && strcmp(s->name, port) == 0) {
|
|
if (a.port > 0 && a.port != s->port) {
|
|
fprintf(stderr, "Error: ambiguous port \"%s\".\n", port);
|
|
return NULL;
|
|
}
|
|
a.port = s->port;
|
|
}
|
|
}
|
|
}
|
|
if (a.port <= 0) {
|
|
fprintf(stderr, "Error: \"%s\" does not look like a port.\n", port);
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (addr && *addr && *addr != '*') {
|
|
if (get_prefix_1(&a.addr, addr, fam)) {
|
|
if (get_dns_host(&a, addr, fam)) {
|
|
fprintf(stderr, "Error: an inet prefix is expected rather than \"%s\".\n", addr);
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
out:
|
|
res = malloc(sizeof(*res));
|
|
if (res)
|
|
memcpy(res, &a, sizeof(a));
|
|
return res;
|
|
}
|
|
|
|
static int tcp_show_line(char *line, const struct filter *f, int family)
|
|
{
|
|
struct tcpstat s;
|
|
char *loc, *rem, *data;
|
|
char opt[256];
|
|
int n;
|
|
char *p;
|
|
|
|
if ((p = strchr(line, ':')) == NULL)
|
|
return -1;
|
|
loc = p+2;
|
|
|
|
if ((p = strchr(loc, ':')) == NULL)
|
|
return -1;
|
|
p[5] = 0;
|
|
rem = p+6;
|
|
|
|
if ((p = strchr(rem, ':')) == NULL)
|
|
return -1;
|
|
p[5] = 0;
|
|
data = p+6;
|
|
|
|
do {
|
|
int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
|
|
|
|
if (!(f->states & (1<<state)))
|
|
return 0;
|
|
} while (0);
|
|
|
|
s.local.family = s.remote.family = family;
|
|
if (family == AF_INET) {
|
|
sscanf(loc, "%x:%x", s.local.data, (unsigned*)&s.lport);
|
|
sscanf(rem, "%x:%x", s.remote.data, (unsigned*)&s.rport);
|
|
s.local.bytelen = s.remote.bytelen = 4;
|
|
} else {
|
|
sscanf(loc, "%08x%08x%08x%08x:%x",
|
|
s.local.data,
|
|
s.local.data+1,
|
|
s.local.data+2,
|
|
s.local.data+3,
|
|
&s.lport);
|
|
sscanf(rem, "%08x%08x%08x%08x:%x",
|
|
s.remote.data,
|
|
s.remote.data+1,
|
|
s.remote.data+2,
|
|
s.remote.data+3,
|
|
&s.rport);
|
|
s.local.bytelen = s.remote.bytelen = 16;
|
|
}
|
|
|
|
if (f->f && run_ssfilter(f->f, &s) == 0)
|
|
return 0;
|
|
|
|
opt[0] = 0;
|
|
n = sscanf(data, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %d %d %[^\n]\n",
|
|
&s.state, &s.wq, &s.rq,
|
|
&s.timer, &s.timeout, &s.retrs, &s.uid, &s.probes, &s.ino,
|
|
&s.refcnt, &s.sk, &s.rto, &s.ato, &s.qack,
|
|
&s.cwnd, &s.ssthresh, opt);
|
|
|
|
if (n < 17)
|
|
opt[0] = 0;
|
|
|
|
if (n < 12) {
|
|
s.rto = 0;
|
|
s.cwnd = 2;
|
|
s.ssthresh = -1;
|
|
s.ato = s.qack = 0;
|
|
}
|
|
|
|
if (netid_width)
|
|
printf("%-*s ", netid_width, "tcp");
|
|
if (state_width)
|
|
printf("%-*s ", state_width, sstate_name[s.state]);
|
|
|
|
printf("%-6d %-6d ", s.rq, s.wq);
|
|
|
|
formatted_print(&s.local, s.lport);
|
|
formatted_print(&s.remote, s.rport);
|
|
|
|
if (show_options) {
|
|
if (s.timer) {
|
|
if (s.timer > 4)
|
|
s.timer = 5;
|
|
printf(" timer:(%s,%s,%d)",
|
|
tmr_name[s.timer],
|
|
print_hz_timer(s.timeout),
|
|
s.timer != 1 ? s.probes : s.retrs);
|
|
}
|
|
}
|
|
if (show_tcpinfo) {
|
|
int hz = get_user_hz();
|
|
if (s.rto && s.rto != 3*hz)
|
|
printf(" rto:%g", (double)s.rto/hz);
|
|
if (s.ato)
|
|
printf(" ato:%g", (double)s.ato/hz);
|
|
if (s.cwnd != 2)
|
|
printf(" cwnd:%d", s.cwnd);
|
|
if (s.ssthresh != -1)
|
|
printf(" ssthresh:%d", s.ssthresh);
|
|
if (s.qack/2)
|
|
printf(" qack:%d", s.qack/2);
|
|
if (s.qack&1)
|
|
printf(" bidir");
|
|
}
|
|
if (show_users) {
|
|
char ubuf[4096];
|
|
if (find_users(s.ino, ubuf, sizeof(ubuf)) > 0)
|
|
printf(" users:(%s)", ubuf);
|
|
}
|
|
if (show_details) {
|
|
if (s.uid)
|
|
printf(" uid:%u", (unsigned)s.uid);
|
|
printf(" ino:%u", s.ino);
|
|
printf(" sk:%llx", s.sk);
|
|
if (opt[0])
|
|
printf(" opt:\"%s\"", opt);
|
|
}
|
|
printf("\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int generic_record_read(FILE *fp,
|
|
int (*worker)(char*, const struct filter *, int),
|
|
const struct filter *f, int fam)
|
|
{
|
|
char line[256];
|
|
|
|
/* skip header */
|
|
if (fgets(line, sizeof(line), fp) == NULL)
|
|
goto outerr;
|
|
|
|
while (fgets(line, sizeof(line), fp) != NULL) {
|
|
int n = strlen(line);
|
|
if (n == 0 || line[n-1] != '\n') {
|
|
errno = -EINVAL;
|
|
return -1;
|
|
}
|
|
line[n-1] = 0;
|
|
|
|
if (worker(line, f, fam) < 0)
|
|
return 0;
|
|
}
|
|
outerr:
|
|
|
|
return ferror(fp) ? -1 : 0;
|
|
}
|
|
|
|
static char *sprint_bw(char *buf, double bw)
|
|
{
|
|
if (bw > 1000000.)
|
|
sprintf(buf,"%.1fM", bw / 1000000.);
|
|
else if (bw > 1000.)
|
|
sprintf(buf,"%.1fK", bw / 1000.);
|
|
else
|
|
sprintf(buf, "%g", bw);
|
|
|
|
return buf;
|
|
}
|
|
|
|
static void print_skmeminfo(struct rtattr *tb[], int attrtype)
|
|
{
|
|
const __u32 *skmeminfo;
|
|
if (!tb[attrtype])
|
|
return;
|
|
skmeminfo = RTA_DATA(tb[attrtype]);
|
|
|
|
printf(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u",
|
|
skmeminfo[SK_MEMINFO_RMEM_ALLOC],
|
|
skmeminfo[SK_MEMINFO_RCVBUF],
|
|
skmeminfo[SK_MEMINFO_WMEM_ALLOC],
|
|
skmeminfo[SK_MEMINFO_SNDBUF],
|
|
skmeminfo[SK_MEMINFO_FWD_ALLOC],
|
|
skmeminfo[SK_MEMINFO_WMEM_QUEUED],
|
|
skmeminfo[SK_MEMINFO_OPTMEM]);
|
|
|
|
if (RTA_PAYLOAD(tb[attrtype]) >=
|
|
(SK_MEMINFO_BACKLOG + 1) * sizeof(__u32))
|
|
printf(",bl%u", skmeminfo[SK_MEMINFO_BACKLOG]);
|
|
|
|
printf(")");
|
|
}
|
|
|
|
static void tcp_show_info(const struct nlmsghdr *nlh, struct inet_diag_msg *r,
|
|
struct rtattr *tb[])
|
|
{
|
|
char b1[64];
|
|
double rtt = 0;
|
|
|
|
if (tb[INET_DIAG_SKMEMINFO]) {
|
|
print_skmeminfo(tb, INET_DIAG_SKMEMINFO);
|
|
} else if (tb[INET_DIAG_MEMINFO]) {
|
|
const struct inet_diag_meminfo *minfo
|
|
= RTA_DATA(tb[INET_DIAG_MEMINFO]);
|
|
printf(" mem:(r%u,w%u,f%u,t%u)",
|
|
minfo->idiag_rmem,
|
|
minfo->idiag_wmem,
|
|
minfo->idiag_fmem,
|
|
minfo->idiag_tmem);
|
|
}
|
|
|
|
if (tb[INET_DIAG_INFO]) {
|
|
struct tcp_info *info;
|
|
int len = RTA_PAYLOAD(tb[INET_DIAG_INFO]);
|
|
|
|
/* workaround for older kernels with less fields */
|
|
if (len < sizeof(*info)) {
|
|
info = alloca(sizeof(*info));
|
|
memset(info, 0, sizeof(*info));
|
|
memcpy(info, RTA_DATA(tb[INET_DIAG_INFO]), len);
|
|
} else
|
|
info = RTA_DATA(tb[INET_DIAG_INFO]);
|
|
|
|
if (show_options) {
|
|
if (info->tcpi_options & TCPI_OPT_TIMESTAMPS)
|
|
printf(" ts");
|
|
if (info->tcpi_options & TCPI_OPT_SACK)
|
|
printf(" sack");
|
|
if (info->tcpi_options & TCPI_OPT_ECN)
|
|
printf(" ecn");
|
|
if (info->tcpi_options & TCPI_OPT_ECN_SEEN)
|
|
printf(" ecnseen");
|
|
if (info->tcpi_options & TCPI_OPT_SYN_DATA)
|
|
printf(" fastopen");
|
|
}
|
|
|
|
if (tb[INET_DIAG_CONG])
|
|
printf(" %s", rta_getattr_str(tb[INET_DIAG_CONG]));
|
|
|
|
if (info->tcpi_options & TCPI_OPT_WSCALE)
|
|
printf(" wscale:%d,%d", info->tcpi_snd_wscale,
|
|
info->tcpi_rcv_wscale);
|
|
if (info->tcpi_rto && info->tcpi_rto != 3000000)
|
|
printf(" rto:%g", (double)info->tcpi_rto/1000);
|
|
if (info->tcpi_rtt)
|
|
printf(" rtt:%g/%g", (double)info->tcpi_rtt/1000,
|
|
(double)info->tcpi_rttvar/1000);
|
|
if (info->tcpi_ato)
|
|
printf(" ato:%g", (double)info->tcpi_ato/1000);
|
|
if (info->tcpi_snd_mss)
|
|
printf(" mss:%d", info->tcpi_snd_mss);
|
|
if (info->tcpi_snd_cwnd != 2)
|
|
printf(" cwnd:%d", info->tcpi_snd_cwnd);
|
|
if (info->tcpi_snd_ssthresh < 0xFFFF)
|
|
printf(" ssthresh:%d", info->tcpi_snd_ssthresh);
|
|
|
|
rtt = (double) info->tcpi_rtt;
|
|
if (tb[INET_DIAG_VEGASINFO]) {
|
|
const struct tcpvegas_info *vinfo
|
|
= RTA_DATA(tb[INET_DIAG_VEGASINFO]);
|
|
|
|
if (vinfo->tcpv_enabled &&
|
|
vinfo->tcpv_rtt && vinfo->tcpv_rtt != 0x7fffffff)
|
|
rtt = vinfo->tcpv_rtt;
|
|
}
|
|
|
|
if (rtt > 0 && info->tcpi_snd_mss && info->tcpi_snd_cwnd) {
|
|
printf(" send %sbps",
|
|
sprint_bw(b1, (double) info->tcpi_snd_cwnd *
|
|
(double) info->tcpi_snd_mss * 8000000.
|
|
/ rtt));
|
|
}
|
|
|
|
if (info->tcpi_unacked)
|
|
printf(" unacked:%u", info->tcpi_unacked);
|
|
if (info->tcpi_retrans || info->tcpi_total_retrans)
|
|
printf(" retrans:%u/%u", info->tcpi_retrans,
|
|
info->tcpi_total_retrans);
|
|
if (info->tcpi_lost)
|
|
printf(" lost:%u", info->tcpi_lost);
|
|
if (info->tcpi_sacked && r->idiag_state != SS_LISTEN)
|
|
printf(" sacked:%u", info->tcpi_sacked);
|
|
if (info->tcpi_fackets)
|
|
printf(" fackets:%u", info->tcpi_fackets);
|
|
if (info->tcpi_reordering != 3)
|
|
printf(" reordering:%d", info->tcpi_reordering);
|
|
if (info->tcpi_rcv_rtt)
|
|
printf(" rcv_rtt:%g", (double) info->tcpi_rcv_rtt/1000);
|
|
if (info->tcpi_rcv_space)
|
|
printf(" rcv_space:%d", info->tcpi_rcv_space);
|
|
|
|
}
|
|
}
|
|
|
|
static int inet_show_sock(struct nlmsghdr *nlh, struct filter *f)
|
|
{
|
|
struct rtattr * tb[INET_DIAG_MAX+1];
|
|
struct inet_diag_msg *r = NLMSG_DATA(nlh);
|
|
struct tcpstat s;
|
|
|
|
parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr*)(r+1),
|
|
nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
|
|
|
|
s.state = r->idiag_state;
|
|
s.local.family = s.remote.family = r->idiag_family;
|
|
s.lport = ntohs(r->id.idiag_sport);
|
|
s.rport = ntohs(r->id.idiag_dport);
|
|
if (s.local.family == AF_INET) {
|
|
s.local.bytelen = s.remote.bytelen = 4;
|
|
} else {
|
|
s.local.bytelen = s.remote.bytelen = 16;
|
|
}
|
|
memcpy(s.local.data, r->id.idiag_src, s.local.bytelen);
|
|
memcpy(s.remote.data, r->id.idiag_dst, s.local.bytelen);
|
|
|
|
if (f && f->f && run_ssfilter(f->f, &s) == 0)
|
|
return 0;
|
|
|
|
if (netid_width)
|
|
printf("%-*s ", netid_width, "tcp");
|
|
if (state_width)
|
|
printf("%-*s ", state_width, sstate_name[s.state]);
|
|
|
|
printf("%-6d %-6d ", r->idiag_rqueue, r->idiag_wqueue);
|
|
|
|
formatted_print(&s.local, s.lport);
|
|
formatted_print(&s.remote, s.rport);
|
|
|
|
if (show_options) {
|
|
if (r->idiag_timer) {
|
|
if (r->idiag_timer > 4)
|
|
r->idiag_timer = 5;
|
|
printf(" timer:(%s,%s,%d)",
|
|
tmr_name[r->idiag_timer],
|
|
print_ms_timer(r->idiag_expires),
|
|
r->idiag_retrans);
|
|
}
|
|
}
|
|
if (show_users) {
|
|
char ubuf[4096];
|
|
if (find_users(r->idiag_inode, ubuf, sizeof(ubuf)) > 0)
|
|
printf(" users:(%s)", ubuf);
|
|
}
|
|
if (show_details) {
|
|
if (r->idiag_uid)
|
|
printf(" uid:%u", (unsigned)r->idiag_uid);
|
|
printf(" ino:%u", r->idiag_inode);
|
|
printf(" sk:");
|
|
if (r->id.idiag_cookie[1] != 0)
|
|
printf("%08x", r->id.idiag_cookie[1]);
|
|
printf("%08x", r->id.idiag_cookie[0]);
|
|
if (tb[INET_DIAG_SHUTDOWN]) {
|
|
unsigned char mask;
|
|
mask = *(__u8 *)RTA_DATA(tb[INET_DIAG_SHUTDOWN]);
|
|
printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
|
|
}
|
|
}
|
|
if (show_mem || show_tcpinfo) {
|
|
printf("\n\t");
|
|
tcp_show_info(nlh, r, tb);
|
|
}
|
|
|
|
printf("\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tcpdiag_send(int fd, int protocol, struct filter *f)
|
|
{
|
|
struct sockaddr_nl nladdr;
|
|
struct {
|
|
struct nlmsghdr nlh;
|
|
struct inet_diag_req r;
|
|
} req;
|
|
char *bc = NULL;
|
|
int bclen;
|
|
struct msghdr msg;
|
|
struct rtattr rta;
|
|
struct iovec iov[3];
|
|
|
|
if (protocol == IPPROTO_UDP)
|
|
return -1;
|
|
|
|
memset(&nladdr, 0, sizeof(nladdr));
|
|
nladdr.nl_family = AF_NETLINK;
|
|
|
|
req.nlh.nlmsg_len = sizeof(req);
|
|
if (protocol == IPPROTO_TCP)
|
|
req.nlh.nlmsg_type = TCPDIAG_GETSOCK;
|
|
else
|
|
req.nlh.nlmsg_type = DCCPDIAG_GETSOCK;
|
|
req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST;
|
|
req.nlh.nlmsg_pid = 0;
|
|
req.nlh.nlmsg_seq = 123456;
|
|
memset(&req.r, 0, sizeof(req.r));
|
|
req.r.idiag_family = AF_INET;
|
|
req.r.idiag_states = f->states;
|
|
if (show_mem) {
|
|
req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
|
|
req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
|
|
}
|
|
|
|
if (show_tcpinfo) {
|
|
req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
|
|
req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
|
|
req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
|
|
}
|
|
|
|
iov[0] = (struct iovec){
|
|
.iov_base = &req,
|
|
.iov_len = sizeof(req)
|
|
};
|
|
if (f->f) {
|
|
bclen = ssfilter_bytecompile(f->f, &bc);
|
|
rta.rta_type = INET_DIAG_REQ_BYTECODE;
|
|
rta.rta_len = RTA_LENGTH(bclen);
|
|
iov[1] = (struct iovec){ &rta, sizeof(rta) };
|
|
iov[2] = (struct iovec){ bc, bclen };
|
|
req.nlh.nlmsg_len += RTA_LENGTH(bclen);
|
|
}
|
|
|
|
msg = (struct msghdr) {
|
|
.msg_name = (void*)&nladdr,
|
|
.msg_namelen = sizeof(nladdr),
|
|
.msg_iov = iov,
|
|
.msg_iovlen = f->f ? 3 : 1,
|
|
};
|
|
|
|
if (sendmsg(fd, &msg, 0) < 0) {
|
|
close(fd);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int sockdiag_send(int family, int fd, int protocol, struct filter *f)
|
|
{
|
|
struct sockaddr_nl nladdr;
|
|
struct {
|
|
struct nlmsghdr nlh;
|
|
struct inet_diag_req_v2 r;
|
|
} req;
|
|
char *bc = NULL;
|
|
int bclen;
|
|
struct msghdr msg;
|
|
struct rtattr rta;
|
|
struct iovec iov[3];
|
|
|
|
if (family == PF_UNSPEC)
|
|
return tcpdiag_send(fd, protocol, f);
|
|
|
|
memset(&nladdr, 0, sizeof(nladdr));
|
|
nladdr.nl_family = AF_NETLINK;
|
|
|
|
req.nlh.nlmsg_len = sizeof(req);
|
|
req.nlh.nlmsg_type = SOCK_DIAG_BY_FAMILY;
|
|
req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST;
|
|
req.nlh.nlmsg_pid = 0;
|
|
req.nlh.nlmsg_seq = 123456;
|
|
memset(&req.r, 0, sizeof(req.r));
|
|
req.r.sdiag_family = family;
|
|
req.r.sdiag_protocol = protocol;
|
|
req.r.idiag_states = f->states;
|
|
if (show_mem) {
|
|
req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
|
|
req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
|
|
}
|
|
|
|
if (show_tcpinfo) {
|
|
req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
|
|
req.r.idiag_ext |= (1<<(INET_DIAG_VEGASINFO-1));
|
|
req.r.idiag_ext |= (1<<(INET_DIAG_CONG-1));
|
|
}
|
|
|
|
iov[0] = (struct iovec){
|
|
.iov_base = &req,
|
|
.iov_len = sizeof(req)
|
|
};
|
|
if (f->f) {
|
|
bclen = ssfilter_bytecompile(f->f, &bc);
|
|
rta.rta_type = INET_DIAG_REQ_BYTECODE;
|
|
rta.rta_len = RTA_LENGTH(bclen);
|
|
iov[1] = (struct iovec){ &rta, sizeof(rta) };
|
|
iov[2] = (struct iovec){ bc, bclen };
|
|
req.nlh.nlmsg_len += RTA_LENGTH(bclen);
|
|
}
|
|
|
|
msg = (struct msghdr) {
|
|
.msg_name = (void*)&nladdr,
|
|
.msg_namelen = sizeof(nladdr),
|
|
.msg_iov = iov,
|
|
.msg_iovlen = f->f ? 3 : 1,
|
|
};
|
|
|
|
if (sendmsg(fd, &msg, 0) < 0) {
|
|
close(fd);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int inet_show_netlink(struct filter *f, FILE *dump_fp, int protocol)
|
|
{
|
|
int fd, family;
|
|
struct sockaddr_nl nladdr;
|
|
struct msghdr msg;
|
|
char buf[8192];
|
|
struct iovec iov[3];
|
|
|
|
if ((fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_INET_DIAG)) < 0)
|
|
return -1;
|
|
|
|
family = PF_INET;
|
|
again:
|
|
if (sockdiag_send(family, fd, protocol, f))
|
|
return -1;
|
|
|
|
memset(&nladdr, 0, sizeof(nladdr));
|
|
nladdr.nl_family = AF_NETLINK;
|
|
|
|
iov[0] = (struct iovec){
|
|
.iov_base = buf,
|
|
.iov_len = sizeof(buf)
|
|
};
|
|
|
|
while (1) {
|
|
int status;
|
|
struct nlmsghdr *h;
|
|
|
|
msg = (struct msghdr) {
|
|
(void*)&nladdr, sizeof(nladdr),
|
|
iov, 1,
|
|
NULL, 0,
|
|
0
|
|
};
|
|
|
|
status = recvmsg(fd, &msg, 0);
|
|
|
|
if (status < 0) {
|
|
if (errno == EINTR)
|
|
continue;
|
|
perror("OVERRUN");
|
|
continue;
|
|
}
|
|
if (status == 0) {
|
|
fprintf(stderr, "EOF on netlink\n");
|
|
close(fd);
|
|
return 0;
|
|
}
|
|
|
|
if (dump_fp)
|
|
fwrite(buf, 1, NLMSG_ALIGN(status), dump_fp);
|
|
|
|
h = (struct nlmsghdr*)buf;
|
|
while (NLMSG_OK(h, status)) {
|
|
int err;
|
|
struct inet_diag_msg *r = NLMSG_DATA(h);
|
|
|
|
if (/*h->nlmsg_pid != rth->local.nl_pid ||*/
|
|
h->nlmsg_seq != 123456)
|
|
goto skip_it;
|
|
|
|
if (h->nlmsg_type == NLMSG_DONE)
|
|
goto done;
|
|
|
|
if (h->nlmsg_type == NLMSG_ERROR) {
|
|
struct nlmsgerr *err = (struct nlmsgerr*)NLMSG_DATA(h);
|
|
if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) {
|
|
fprintf(stderr, "ERROR truncated\n");
|
|
} else {
|
|
if (family != PF_UNSPEC) {
|
|
family = PF_UNSPEC;
|
|
goto again;
|
|
}
|
|
|
|
errno = -err->error;
|
|
if (errno == EOPNOTSUPP) {
|
|
close(fd);
|
|
return -1;
|
|
}
|
|
perror("TCPDIAG answers");
|
|
}
|
|
|
|
goto done;
|
|
}
|
|
if (!dump_fp) {
|
|
if (!(f->families & (1<<r->idiag_family))) {
|
|
h = NLMSG_NEXT(h, status);
|
|
continue;
|
|
}
|
|
err = inet_show_sock(h, NULL);
|
|
if (err < 0) {
|
|
close(fd);
|
|
return err;
|
|
}
|
|
}
|
|
|
|
skip_it:
|
|
h = NLMSG_NEXT(h, status);
|
|
}
|
|
if (msg.msg_flags & MSG_TRUNC) {
|
|
fprintf(stderr, "Message truncated\n");
|
|
continue;
|
|
}
|
|
if (status) {
|
|
fprintf(stderr, "!!!Remnant of size %d\n", status);
|
|
exit(1);
|
|
}
|
|
}
|
|
done:
|
|
if (family == PF_INET) {
|
|
family = PF_INET6;
|
|
goto again;
|
|
}
|
|
|
|
close(fd);
|
|
return 0;
|
|
}
|
|
|
|
static int tcp_show_netlink_file(struct filter *f)
|
|
{
|
|
FILE *fp;
|
|
char buf[8192];
|
|
|
|
if ((fp = fopen(getenv("TCPDIAG_FILE"), "r")) == NULL) {
|
|
perror("fopen($TCPDIAG_FILE)");
|
|
return -1;
|
|
}
|
|
|
|
while (1) {
|
|
int status, err;
|
|
struct nlmsghdr *h = (struct nlmsghdr*)buf;
|
|
|
|
status = fread(buf, 1, sizeof(*h), fp);
|
|
if (status < 0) {
|
|
perror("Reading header from $TCPDIAG_FILE");
|
|
return -1;
|
|
}
|
|
if (status != sizeof(*h)) {
|
|
perror("Unexpected EOF reading $TCPDIAG_FILE");
|
|
return -1;
|
|
}
|
|
|
|
status = fread(h+1, 1, NLMSG_ALIGN(h->nlmsg_len-sizeof(*h)), fp);
|
|
|
|
if (status < 0) {
|
|
perror("Reading $TCPDIAG_FILE");
|
|
return -1;
|
|
}
|
|
if (status + sizeof(*h) < h->nlmsg_len) {
|
|
perror("Unexpected EOF reading $TCPDIAG_FILE");
|
|
return -1;
|
|
}
|
|
|
|
/* The only legal exit point */
|
|
if (h->nlmsg_type == NLMSG_DONE)
|
|
return 0;
|
|
|
|
if (h->nlmsg_type == NLMSG_ERROR) {
|
|
struct nlmsgerr *err = (struct nlmsgerr*)NLMSG_DATA(h);
|
|
if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) {
|
|
fprintf(stderr, "ERROR truncated\n");
|
|
} else {
|
|
errno = -err->error;
|
|
perror("TCPDIAG answered");
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
err = inet_show_sock(h, f);
|
|
if (err < 0)
|
|
return err;
|
|
}
|
|
}
|
|
|
|
static int tcp_show(struct filter *f, int socktype)
|
|
{
|
|
FILE *fp = NULL;
|
|
char *buf = NULL;
|
|
int bufsize = 64*1024;
|
|
|
|
dg_proto = TCP_PROTO;
|
|
|
|
if (getenv("TCPDIAG_FILE"))
|
|
return tcp_show_netlink_file(f);
|
|
|
|
if (!getenv("PROC_NET_TCP") && !getenv("PROC_ROOT")
|
|
&& inet_show_netlink(f, NULL, socktype) == 0)
|
|
return 0;
|
|
|
|
/* Sigh... We have to parse /proc/net/tcp... */
|
|
|
|
|
|
/* Estimate amount of sockets and try to allocate
|
|
* huge buffer to read all the table at one read.
|
|
* Limit it by 16MB though. The assumption is: as soon as
|
|
* kernel was able to hold information about N connections,
|
|
* it is able to give us some memory for snapshot.
|
|
*/
|
|
if (1) {
|
|
int guess = slabstat.socks+slabstat.tcp_syns;
|
|
if (f->states&(1<<SS_TIME_WAIT))
|
|
guess += slabstat.tcp_tws;
|
|
if (guess > (16*1024*1024)/128)
|
|
guess = (16*1024*1024)/128;
|
|
guess *= 128;
|
|
if (guess > bufsize)
|
|
bufsize = guess;
|
|
}
|
|
while (bufsize >= 64*1024) {
|
|
if ((buf = malloc(bufsize)) != NULL)
|
|
break;
|
|
bufsize /= 2;
|
|
}
|
|
if (buf == NULL) {
|
|
errno = ENOMEM;
|
|
return -1;
|
|
}
|
|
|
|
if (f->families & (1<<AF_INET)) {
|
|
if ((fp = net_tcp_open()) == NULL)
|
|
goto outerr;
|
|
|
|
setbuffer(fp, buf, bufsize);
|
|
if (generic_record_read(fp, tcp_show_line, f, AF_INET))
|
|
goto outerr;
|
|
fclose(fp);
|
|
}
|
|
|
|
if ((f->families & (1<<AF_INET6)) &&
|
|
(fp = net_tcp6_open()) != NULL) {
|
|
setbuffer(fp, buf, bufsize);
|
|
if (generic_record_read(fp, tcp_show_line, f, AF_INET6))
|
|
goto outerr;
|
|
fclose(fp);
|
|
}
|
|
|
|
free(buf);
|
|
return 0;
|
|
|
|
outerr:
|
|
do {
|
|
int saved_errno = errno;
|
|
if (buf)
|
|
free(buf);
|
|
if (fp)
|
|
fclose(fp);
|
|
errno = saved_errno;
|
|
return -1;
|
|
} while (0);
|
|
}
|
|
|
|
|
|
static int dgram_show_line(char *line, const struct filter *f, int family)
|
|
{
|
|
struct tcpstat s;
|
|
char *loc, *rem, *data;
|
|
char opt[256];
|
|
int n;
|
|
char *p;
|
|
|
|
if ((p = strchr(line, ':')) == NULL)
|
|
return -1;
|
|
loc = p+2;
|
|
|
|
if ((p = strchr(loc, ':')) == NULL)
|
|
return -1;
|
|
p[5] = 0;
|
|
rem = p+6;
|
|
|
|
if ((p = strchr(rem, ':')) == NULL)
|
|
return -1;
|
|
p[5] = 0;
|
|
data = p+6;
|
|
|
|
do {
|
|
int state = (data[1] >= 'A') ? (data[1] - 'A' + 10) : (data[1] - '0');
|
|
|
|
if (!(f->states & (1<<state)))
|
|
return 0;
|
|
} while (0);
|
|
|
|
s.local.family = s.remote.family = family;
|
|
if (family == AF_INET) {
|
|
sscanf(loc, "%x:%x", s.local.data, (unsigned*)&s.lport);
|
|
sscanf(rem, "%x:%x", s.remote.data, (unsigned*)&s.rport);
|
|
s.local.bytelen = s.remote.bytelen = 4;
|
|
} else {
|
|
sscanf(loc, "%08x%08x%08x%08x:%x",
|
|
s.local.data,
|
|
s.local.data+1,
|
|
s.local.data+2,
|
|
s.local.data+3,
|
|
&s.lport);
|
|
sscanf(rem, "%08x%08x%08x%08x:%x",
|
|
s.remote.data,
|
|
s.remote.data+1,
|
|
s.remote.data+2,
|
|
s.remote.data+3,
|
|
&s.rport);
|
|
s.local.bytelen = s.remote.bytelen = 16;
|
|
}
|
|
|
|
if (f->f && run_ssfilter(f->f, &s) == 0)
|
|
return 0;
|
|
|
|
opt[0] = 0;
|
|
n = sscanf(data, "%x %x:%x %*x:%*x %*x %d %*d %u %d %llx %[^\n]\n",
|
|
&s.state, &s.wq, &s.rq,
|
|
&s.uid, &s.ino,
|
|
&s.refcnt, &s.sk, opt);
|
|
|
|
if (n < 9)
|
|
opt[0] = 0;
|
|
|
|
if (netid_width)
|
|
printf("%-*s ", netid_width, dg_proto);
|
|
if (state_width)
|
|
printf("%-*s ", state_width, sstate_name[s.state]);
|
|
|
|
printf("%-6d %-6d ", s.rq, s.wq);
|
|
|
|
formatted_print(&s.local, s.lport);
|
|
formatted_print(&s.remote, s.rport);
|
|
|
|
if (show_users) {
|
|
char ubuf[4096];
|
|
if (find_users(s.ino, ubuf, sizeof(ubuf)) > 0)
|
|
printf(" users:(%s)", ubuf);
|
|
}
|
|
|
|
if (show_details) {
|
|
if (s.uid)
|
|
printf(" uid=%u", (unsigned)s.uid);
|
|
printf(" ino=%u", s.ino);
|
|
printf(" sk=%llx", s.sk);
|
|
if (opt[0])
|
|
printf(" opt:\"%s\"", opt);
|
|
}
|
|
printf("\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int udp_show(struct filter *f)
|
|
{
|
|
FILE *fp = NULL;
|
|
|
|
if (!getenv("PROC_NET_UDP") && !getenv("PROC_ROOT")
|
|
&& inet_show_netlink(f, NULL, IPPROTO_UDP) == 0)
|
|
return 0;
|
|
|
|
dg_proto = UDP_PROTO;
|
|
|
|
if (f->families&(1<<AF_INET)) {
|
|
if ((fp = net_udp_open()) == NULL)
|
|
goto outerr;
|
|
if (generic_record_read(fp, dgram_show_line, f, AF_INET))
|
|
goto outerr;
|
|
fclose(fp);
|
|
}
|
|
|
|
if ((f->families&(1<<AF_INET6)) &&
|
|
(fp = net_udp6_open()) != NULL) {
|
|
if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
|
|
goto outerr;
|
|
fclose(fp);
|
|
}
|
|
return 0;
|
|
|
|
outerr:
|
|
do {
|
|
int saved_errno = errno;
|
|
if (fp)
|
|
fclose(fp);
|
|
errno = saved_errno;
|
|
return -1;
|
|
} while (0);
|
|
}
|
|
|
|
static int raw_show(struct filter *f)
|
|
{
|
|
FILE *fp = NULL;
|
|
|
|
dg_proto = RAW_PROTO;
|
|
|
|
if (f->families&(1<<AF_INET)) {
|
|
if ((fp = net_raw_open()) == NULL)
|
|
goto outerr;
|
|
if (generic_record_read(fp, dgram_show_line, f, AF_INET))
|
|
goto outerr;
|
|
fclose(fp);
|
|
}
|
|
|
|
if ((f->families&(1<<AF_INET6)) &&
|
|
(fp = net_raw6_open()) != NULL) {
|
|
if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
|
|
goto outerr;
|
|
fclose(fp);
|
|
}
|
|
return 0;
|
|
|
|
outerr:
|
|
do {
|
|
int saved_errno = errno;
|
|
if (fp)
|
|
fclose(fp);
|
|
errno = saved_errno;
|
|
return -1;
|
|
} while (0);
|
|
}
|
|
|
|
|
|
struct unixstat
|
|
{
|
|
struct unixstat *next;
|
|
int ino;
|
|
int peer;
|
|
int rq;
|
|
int wq;
|
|
int state;
|
|
int type;
|
|
char *name;
|
|
};
|
|
|
|
|
|
|
|
int unix_state_map[] = { SS_CLOSE, SS_SYN_SENT,
|
|
SS_ESTABLISHED, SS_CLOSING };
|
|
|
|
|
|
#define MAX_UNIX_REMEMBER (1024*1024/sizeof(struct unixstat))
|
|
|
|
static void unix_list_free(struct unixstat *list)
|
|
{
|
|
while (list) {
|
|
struct unixstat *s = list;
|
|
list = list->next;
|
|
if (s->name)
|
|
free(s->name);
|
|
free(s);
|
|
}
|
|
}
|
|
|
|
static const char *unix_netid_name(int type)
|
|
{
|
|
const char *netid;
|
|
|
|
switch (type) {
|
|
case SOCK_STREAM:
|
|
netid = "u_str";
|
|
break;
|
|
case SOCK_SEQPACKET:
|
|
netid = "u_seq";
|
|
break;
|
|
case SOCK_DGRAM:
|
|
default:
|
|
netid = "u_dgr";
|
|
break;
|
|
}
|
|
return netid;
|
|
}
|
|
|
|
static void unix_list_print(struct unixstat *list, struct filter *f)
|
|
{
|
|
struct unixstat *s;
|
|
char *peer;
|
|
|
|
for (s = list; s; s = s->next) {
|
|
if (!(f->states & (1<<s->state)))
|
|
continue;
|
|
if (s->type == SOCK_STREAM && !(f->dbs&(1<<UNIX_ST_DB)))
|
|
continue;
|
|
if (s->type == SOCK_DGRAM && !(f->dbs&(1<<UNIX_DG_DB)))
|
|
continue;
|
|
if (s->type == SOCK_SEQPACKET && !(f->dbs&(1<<UNIX_SQ_DB)))
|
|
continue;
|
|
|
|
peer = "*";
|
|
if (s->peer) {
|
|
struct unixstat *p;
|
|
for (p = list; p; p = p->next) {
|
|
if (s->peer == p->ino)
|
|
break;
|
|
}
|
|
if (!p) {
|
|
peer = "?";
|
|
} else {
|
|
peer = p->name ? : "*";
|
|
}
|
|
}
|
|
|
|
if (f->f) {
|
|
struct tcpstat tst;
|
|
tst.local.family = AF_UNIX;
|
|
tst.remote.family = AF_UNIX;
|
|
memcpy(tst.local.data, &s->name, sizeof(s->name));
|
|
if (strcmp(peer, "*") == 0)
|
|
memset(tst.remote.data, 0, sizeof(peer));
|
|
else
|
|
memcpy(tst.remote.data, &peer, sizeof(peer));
|
|
if (run_ssfilter(f->f, &tst) == 0)
|
|
continue;
|
|
}
|
|
|
|
if (netid_width)
|
|
printf("%-*s ", netid_width,
|
|
unix_netid_name(s->type));
|
|
if (state_width)
|
|
printf("%-*s ", state_width, sstate_name[s->state]);
|
|
printf("%-6d %-6d ", s->rq, s->wq);
|
|
printf("%*s %-*d %*s %-*d",
|
|
addr_width, s->name ? : "*", serv_width, s->ino,
|
|
addr_width, peer, serv_width, s->peer);
|
|
if (show_users) {
|
|
char ubuf[4096];
|
|
if (find_users(s->ino, ubuf, sizeof(ubuf)) > 0)
|
|
printf(" users:(%s)", ubuf);
|
|
}
|
|
printf("\n");
|
|
}
|
|
}
|
|
|
|
static int unix_show_sock(struct nlmsghdr *nlh, struct filter *f)
|
|
{
|
|
struct unix_diag_msg *r = NLMSG_DATA(nlh);
|
|
struct rtattr *tb[UNIX_DIAG_MAX+1];
|
|
char name[128];
|
|
int peer_ino;
|
|
__u32 rqlen, wqlen;
|
|
|
|
parse_rtattr(tb, UNIX_DIAG_MAX, (struct rtattr*)(r+1),
|
|
nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
|
|
|
|
if (r->udiag_type == SOCK_STREAM && !(f->dbs&(1<<UNIX_ST_DB)))
|
|
return 0;
|
|
if (r->udiag_type == SOCK_DGRAM && !(f->dbs&(1<<UNIX_DG_DB)))
|
|
return 0;
|
|
if (r->udiag_type == SOCK_SEQPACKET && !(f->dbs&(1<<UNIX_SQ_DB)))
|
|
return 0;
|
|
|
|
if (netid_width)
|
|
printf("%-*s ", netid_width,
|
|
unix_netid_name(r->udiag_type));
|
|
if (state_width)
|
|
printf("%-*s ", state_width, sstate_name[r->udiag_state]);
|
|
|
|
if (tb[UNIX_DIAG_RQLEN]) {
|
|
struct unix_diag_rqlen *rql = RTA_DATA(tb[UNIX_DIAG_RQLEN]);
|
|
rqlen = rql->udiag_rqueue;
|
|
wqlen = rql->udiag_wqueue;
|
|
} else {
|
|
rqlen = 0;
|
|
wqlen = 0;
|
|
}
|
|
|
|
printf("%-6u %-6u ", rqlen, wqlen);
|
|
|
|
if (tb[UNIX_DIAG_NAME]) {
|
|
int len = RTA_PAYLOAD(tb[UNIX_DIAG_NAME]);
|
|
|
|
memcpy(name, RTA_DATA(tb[UNIX_DIAG_NAME]), len);
|
|
name[len] = '\0';
|
|
if (name[0] == '\0')
|
|
name[0] = '@';
|
|
} else
|
|
sprintf(name, "*");
|
|
|
|
if (tb[UNIX_DIAG_PEER])
|
|
peer_ino = rta_getattr_u32(tb[UNIX_DIAG_PEER]);
|
|
else
|
|
peer_ino = 0;
|
|
|
|
printf("%*s %-*d %*s %-*d",
|
|
addr_width, name,
|
|
serv_width, r->udiag_ino,
|
|
addr_width, "*", /* FIXME */
|
|
serv_width, peer_ino);
|
|
|
|
if (show_users) {
|
|
char ubuf[4096];
|
|
if (find_users(r->udiag_ino, ubuf, sizeof(ubuf)) > 0)
|
|
printf(" users:(%s)", ubuf);
|
|
}
|
|
|
|
if (show_mem) {
|
|
printf("\n\t");
|
|
print_skmeminfo(tb, UNIX_DIAG_MEMINFO);
|
|
}
|
|
|
|
if (show_details) {
|
|
if (tb[UNIX_DIAG_SHUTDOWN]) {
|
|
unsigned char mask;
|
|
mask = *(__u8 *)RTA_DATA(tb[UNIX_DIAG_SHUTDOWN]);
|
|
printf(" %c-%c", mask & 1 ? '-' : '<', mask & 2 ? '-' : '>');
|
|
}
|
|
}
|
|
|
|
printf("\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int handle_netlink_request(struct filter *f, FILE *dump_fp,
|
|
struct nlmsghdr *req, size_t size,
|
|
int (* show_one_sock)(struct nlmsghdr *nlh, struct filter *f))
|
|
{
|
|
int fd;
|
|
char buf[8192];
|
|
|
|
if ((fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_INET_DIAG)) < 0)
|
|
return -1;
|
|
|
|
if (send(fd, req, size, 0) < 0) {
|
|
close(fd);
|
|
return -1;
|
|
}
|
|
|
|
while (1) {
|
|
ssize_t status;
|
|
struct nlmsghdr *h;
|
|
struct sockaddr_nl nladdr;
|
|
socklen_t slen = sizeof(nladdr);
|
|
|
|
status = recvfrom(fd, buf, sizeof(buf), 0,
|
|
(struct sockaddr *) &nladdr, &slen);
|
|
if (status < 0) {
|
|
if (errno == EINTR)
|
|
continue;
|
|
perror("OVERRUN");
|
|
continue;
|
|
}
|
|
if (status == 0) {
|
|
fprintf(stderr, "EOF on netlink\n");
|
|
goto close_it;
|
|
}
|
|
|
|
if (dump_fp)
|
|
fwrite(buf, 1, NLMSG_ALIGN(status), dump_fp);
|
|
|
|
h = (struct nlmsghdr*)buf;
|
|
while (NLMSG_OK(h, status)) {
|
|
int err;
|
|
|
|
if (/*h->nlmsg_pid != rth->local.nl_pid ||*/
|
|
h->nlmsg_seq != 123456)
|
|
goto skip_it;
|
|
|
|
if (h->nlmsg_type == NLMSG_DONE)
|
|
goto close_it;
|
|
|
|
if (h->nlmsg_type == NLMSG_ERROR) {
|
|
struct nlmsgerr *err = (struct nlmsgerr*)NLMSG_DATA(h);
|
|
if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) {
|
|
fprintf(stderr, "ERROR truncated\n");
|
|
} else {
|
|
errno = -err->error;
|
|
if (errno != ENOENT)
|
|
fprintf(stderr, "DIAG answers %d\n", errno);
|
|
}
|
|
close(fd);
|
|
return -1;
|
|
}
|
|
if (!dump_fp) {
|
|
err = show_one_sock(h, f);
|
|
if (err < 0) {
|
|
close(fd);
|
|
return err;
|
|
}
|
|
}
|
|
|
|
skip_it:
|
|
h = NLMSG_NEXT(h, status);
|
|
}
|
|
|
|
if (status) {
|
|
fprintf(stderr, "!!!Remnant of size %zd\n", status);
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
close_it:
|
|
close(fd);
|
|
return 0;
|
|
}
|
|
|
|
static int unix_show_netlink(struct filter *f, FILE *dump_fp)
|
|
{
|
|
struct {
|
|
struct nlmsghdr nlh;
|
|
struct unix_diag_req r;
|
|
} req;
|
|
|
|
memset(&req, 0, sizeof(req));
|
|
req.nlh.nlmsg_len = sizeof(req);
|
|
req.nlh.nlmsg_type = SOCK_DIAG_BY_FAMILY;
|
|
req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST;
|
|
req.nlh.nlmsg_seq = 123456;
|
|
|
|
req.r.sdiag_family = AF_UNIX;
|
|
req.r.udiag_states = f->states;
|
|
req.r.udiag_show = UDIAG_SHOW_NAME | UDIAG_SHOW_PEER | UDIAG_SHOW_RQLEN;
|
|
if (show_mem)
|
|
req.r.udiag_show |= UDIAG_SHOW_MEMINFO;
|
|
|
|
return handle_netlink_request(f, dump_fp, &req.nlh,
|
|
sizeof(req), unix_show_sock);
|
|
}
|
|
|
|
static int unix_show(struct filter *f)
|
|
{
|
|
FILE *fp;
|
|
char buf[256];
|
|
char name[128];
|
|
int newformat = 0;
|
|
int cnt;
|
|
struct unixstat *list = NULL;
|
|
|
|
if (!getenv("PROC_NET_UNIX") && !getenv("PROC_ROOT")
|
|
&& unix_show_netlink(f, NULL) == 0)
|
|
return 0;
|
|
|
|
if ((fp = net_unix_open()) == NULL)
|
|
return -1;
|
|
fgets(buf, sizeof(buf)-1, fp);
|
|
|
|
if (memcmp(buf, "Peer", 4) == 0)
|
|
newformat = 1;
|
|
cnt = 0;
|
|
|
|
while (fgets(buf, sizeof(buf)-1, fp)) {
|
|
struct unixstat *u, **insp;
|
|
int flags;
|
|
|
|
if (!(u = malloc(sizeof(*u))))
|
|
break;
|
|
u->name = NULL;
|
|
|
|
if (sscanf(buf, "%x: %x %x %x %x %x %d %s",
|
|
&u->peer, &u->rq, &u->wq, &flags, &u->type,
|
|
&u->state, &u->ino, name) < 8)
|
|
name[0] = 0;
|
|
|
|
if (flags&(1<<16)) {
|
|
u->state = SS_LISTEN;
|
|
} else {
|
|
u->state = unix_state_map[u->state-1];
|
|
if (u->type == SOCK_DGRAM &&
|
|
u->state == SS_CLOSE &&
|
|
u->peer)
|
|
u->state = SS_ESTABLISHED;
|
|
}
|
|
|
|
if (!newformat) {
|
|
u->peer = 0;
|
|
u->rq = 0;
|
|
u->wq = 0;
|
|
}
|
|
|
|
insp = &list;
|
|
while (*insp) {
|
|
if (u->type < (*insp)->type ||
|
|
(u->type == (*insp)->type &&
|
|
u->ino < (*insp)->ino))
|
|
break;
|
|
insp = &(*insp)->next;
|
|
}
|
|
u->next = *insp;
|
|
*insp = u;
|
|
|
|
if (name[0]) {
|
|
if ((u->name = malloc(strlen(name)+1)) == NULL)
|
|
break;
|
|
strcpy(u->name, name);
|
|
}
|
|
if (++cnt > MAX_UNIX_REMEMBER) {
|
|
unix_list_print(list, f);
|
|
unix_list_free(list);
|
|
list = NULL;
|
|
cnt = 0;
|
|
}
|
|
}
|
|
fclose(fp);
|
|
if (list) {
|
|
unix_list_print(list, f);
|
|
unix_list_free(list);
|
|
list = NULL;
|
|
cnt = 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int packet_show_sock(struct nlmsghdr *nlh, struct filter *f)
|
|
{
|
|
struct packet_diag_msg *r = NLMSG_DATA(nlh);
|
|
struct rtattr *tb[PACKET_DIAG_MAX+1];
|
|
__u32 rq;
|
|
|
|
parse_rtattr(tb, PACKET_DIAG_MAX, (struct rtattr*)(r+1),
|
|
nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
|
|
|
|
/* use /proc/net/packet if all info are not available */
|
|
if (!tb[PACKET_DIAG_MEMINFO])
|
|
return -1;
|
|
|
|
if (netid_width)
|
|
printf("%-*s ", netid_width,
|
|
r->pdiag_type == SOCK_RAW ? "p_raw" : "p_dgr");
|
|
if (state_width)
|
|
printf("%-*s ", state_width, "UNCONN");
|
|
|
|
if (tb[PACKET_DIAG_MEMINFO]) {
|
|
__u32 *skmeminfo = RTA_DATA(tb[PACKET_DIAG_MEMINFO]);
|
|
|
|
rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
|
|
} else
|
|
rq = 0;
|
|
printf("%-6d %-6d ", rq, 0);
|
|
|
|
if (r->pdiag_num == 3) {
|
|
printf("%*s:", addr_width, "*");
|
|
} else {
|
|
char tb2[16];
|
|
printf("%*s:", addr_width,
|
|
ll_proto_n2a(htons(r->pdiag_num), tb2, sizeof(tb2)));
|
|
}
|
|
if (tb[PACKET_DIAG_INFO]) {
|
|
struct packet_diag_info *pinfo = RTA_DATA(tb[PACKET_DIAG_INFO]);
|
|
|
|
if (pinfo->pdi_index == 0)
|
|
printf("%-*s ", serv_width, "*");
|
|
else
|
|
printf("%-*s ", serv_width, xll_index_to_name(pinfo->pdi_index));
|
|
} else
|
|
printf("%-*s ", serv_width, "*");
|
|
|
|
printf("%*s*%-*s",
|
|
addr_width, "", serv_width, "");
|
|
|
|
if (show_users) {
|
|
char ubuf[4096];
|
|
if (find_users(r->pdiag_ino, ubuf, sizeof(ubuf)) > 0)
|
|
printf(" users:(%s)", ubuf);
|
|
}
|
|
if (show_details) {
|
|
__u32 uid = 0;
|
|
|
|
if (tb[PACKET_DIAG_UID])
|
|
uid = *(__u32 *)RTA_DATA(tb[PACKET_DIAG_UID]);
|
|
|
|
printf(" ino=%u uid=%u sk=", r->pdiag_ino, uid);
|
|
if (r->pdiag_cookie[1] != 0)
|
|
printf("%08x", r->pdiag_cookie[1]);
|
|
printf("%08x", r->pdiag_cookie[0]);
|
|
}
|
|
|
|
if (show_bpf && tb[PACKET_DIAG_FILTER]) {
|
|
struct sock_filter *fil =
|
|
RTA_DATA(tb[PACKET_DIAG_FILTER]);
|
|
int num = RTA_PAYLOAD(tb[PACKET_DIAG_FILTER]) /
|
|
sizeof(struct sock_filter);
|
|
|
|
printf("\n\tbpf filter (%d): ", num);
|
|
while (num) {
|
|
printf(" 0x%02x %u %u %u,",
|
|
fil->code, fil->jt, fil->jf, fil->k);
|
|
num--;
|
|
fil++;
|
|
}
|
|
}
|
|
printf("\n");
|
|
return 0;
|
|
}
|
|
|
|
static int packet_show_netlink(struct filter *f, FILE *dump_fp)
|
|
{
|
|
int fd;
|
|
struct {
|
|
struct nlmsghdr nlh;
|
|
struct packet_diag_req r;
|
|
} req;
|
|
char buf[8192];
|
|
|
|
if ((fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_INET_DIAG)) < 0)
|
|
return -1;
|
|
|
|
memset(&req, 0, sizeof(req));
|
|
req.nlh.nlmsg_len = sizeof(req);
|
|
req.nlh.nlmsg_type = SOCK_DIAG_BY_FAMILY;
|
|
req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST;
|
|
req.nlh.nlmsg_seq = 123456;
|
|
|
|
req.r.sdiag_family = AF_PACKET;
|
|
req.r.pdiag_show = PACKET_SHOW_INFO | PACKET_SHOW_MEMINFO | PACKET_SHOW_FILTER;
|
|
|
|
if (send(fd, &req, sizeof(req), 0) < 0) {
|
|
close(fd);
|
|
return -1;
|
|
}
|
|
|
|
while (1) {
|
|
ssize_t status;
|
|
struct nlmsghdr *h;
|
|
struct sockaddr_nl nladdr;
|
|
socklen_t slen = sizeof(nladdr);
|
|
|
|
status = recvfrom(fd, buf, sizeof(buf), 0,
|
|
(struct sockaddr *) &nladdr, &slen);
|
|
if (status < 0) {
|
|
if (errno == EINTR)
|
|
continue;
|
|
perror("OVERRUN");
|
|
continue;
|
|
}
|
|
if (status == 0) {
|
|
fprintf(stderr, "EOF on netlink\n");
|
|
goto close_it;
|
|
}
|
|
|
|
if (dump_fp)
|
|
fwrite(buf, 1, NLMSG_ALIGN(status), dump_fp);
|
|
|
|
h = (struct nlmsghdr*)buf;
|
|
while (NLMSG_OK(h, status)) {
|
|
int err;
|
|
|
|
if (h->nlmsg_seq != 123456)
|
|
goto skip_it;
|
|
|
|
if (h->nlmsg_type == NLMSG_DONE)
|
|
goto close_it;
|
|
|
|
if (h->nlmsg_type == NLMSG_ERROR) {
|
|
struct nlmsgerr *err = (struct nlmsgerr*)NLMSG_DATA(h);
|
|
if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) {
|
|
fprintf(stderr, "ERROR truncated\n");
|
|
} else {
|
|
errno = -err->error;
|
|
if (errno != ENOENT)
|
|
fprintf(stderr, "UDIAG answers %d\n", errno);
|
|
}
|
|
close(fd);
|
|
return -1;
|
|
}
|
|
if (!dump_fp) {
|
|
err = packet_show_sock(h, f);
|
|
if (err < 0) {
|
|
close(fd);
|
|
return err;
|
|
}
|
|
}
|
|
|
|
skip_it:
|
|
h = NLMSG_NEXT(h, status);
|
|
}
|
|
|
|
if (status) {
|
|
fprintf(stderr, "!!!Remnant of size %zd\n", status);
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
close_it:
|
|
close(fd);
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int packet_show(struct filter *f)
|
|
{
|
|
FILE *fp;
|
|
char buf[256];
|
|
int type;
|
|
int prot;
|
|
int iface;
|
|
int state;
|
|
int rq;
|
|
int uid;
|
|
int ino;
|
|
unsigned long long sk;
|
|
|
|
if (!(f->states & (1<<SS_CLOSE)))
|
|
return 0;
|
|
|
|
if (packet_show_netlink(f, NULL) == 0)
|
|
return 0;
|
|
|
|
if ((fp = net_packet_open()) == NULL)
|
|
return -1;
|
|
fgets(buf, sizeof(buf)-1, fp);
|
|
|
|
while (fgets(buf, sizeof(buf)-1, fp)) {
|
|
sscanf(buf, "%llx %*d %d %x %d %d %u %u %u",
|
|
&sk,
|
|
&type, &prot, &iface, &state,
|
|
&rq, &uid, &ino);
|
|
|
|
if (type == SOCK_RAW && !(f->dbs&(1<<PACKET_R_DB)))
|
|
continue;
|
|
if (type == SOCK_DGRAM && !(f->dbs&(1<<PACKET_DG_DB)))
|
|
continue;
|
|
if (f->f) {
|
|
struct tcpstat tst;
|
|
tst.local.family = AF_PACKET;
|
|
tst.remote.family = AF_PACKET;
|
|
tst.rport = 0;
|
|
tst.lport = iface;
|
|
tst.local.data[0] = prot;
|
|
tst.remote.data[0] = 0;
|
|
if (run_ssfilter(f->f, &tst) == 0)
|
|
continue;
|
|
}
|
|
|
|
if (netid_width)
|
|
printf("%-*s ", netid_width,
|
|
type == SOCK_RAW ? "p_raw" : "p_dgr");
|
|
if (state_width)
|
|
printf("%-*s ", state_width, "UNCONN");
|
|
printf("%-6d %-6d ", rq, 0);
|
|
if (prot == 3) {
|
|
printf("%*s:", addr_width, "*");
|
|
} else {
|
|
char tb[16];
|
|
printf("%*s:", addr_width,
|
|
ll_proto_n2a(htons(prot), tb, sizeof(tb)));
|
|
}
|
|
if (iface == 0) {
|
|
printf("%-*s ", serv_width, "*");
|
|
} else {
|
|
printf("%-*s ", serv_width, xll_index_to_name(iface));
|
|
}
|
|
printf("%*s*%-*s",
|
|
addr_width, "", serv_width, "");
|
|
|
|
if (show_users) {
|
|
char ubuf[4096];
|
|
if (find_users(ino, ubuf, sizeof(ubuf)) > 0)
|
|
printf(" users:(%s)", ubuf);
|
|
}
|
|
if (show_details) {
|
|
printf(" ino=%u uid=%u sk=%llx", ino, uid, sk);
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void netlink_show_one(struct filter *f,
|
|
int prot, int pid, unsigned groups,
|
|
int state, int dst_pid, unsigned dst_group,
|
|
int rq, int wq,
|
|
unsigned long long sk, unsigned long long cb)
|
|
{
|
|
if (f->f) {
|
|
struct tcpstat tst;
|
|
tst.local.family = AF_NETLINK;
|
|
tst.remote.family = AF_NETLINK;
|
|
tst.rport = -1;
|
|
tst.lport = pid;
|
|
tst.local.data[0] = prot;
|
|
tst.remote.data[0] = 0;
|
|
if (run_ssfilter(f->f, &tst) == 0)
|
|
return;
|
|
}
|
|
|
|
if (netid_width)
|
|
printf("%-*s ", netid_width, "nl");
|
|
if (state_width)
|
|
printf("%-*s ", state_width, "UNCONN");
|
|
printf("%-6d %-6d ", rq, wq);
|
|
if (resolve_services && prot == 0)
|
|
printf("%*s:", addr_width, "rtnl");
|
|
else if (resolve_services && prot == 3)
|
|
printf("%*s:", addr_width, "fw");
|
|
else if (resolve_services && prot == 4)
|
|
printf("%*s:", addr_width, "tcpdiag");
|
|
else
|
|
printf("%*d:", addr_width, prot);
|
|
if (pid == -1) {
|
|
printf("%-*s ", serv_width, "*");
|
|
} else if (resolve_services) {
|
|
int done = 0;
|
|
if (!pid) {
|
|
done = 1;
|
|
printf("%-*s ", serv_width, "kernel");
|
|
} else if (pid > 0) {
|
|
char procname[64];
|
|
FILE *fp;
|
|
sprintf(procname, "%s/%d/stat",
|
|
getenv("PROC_ROOT") ? : "/proc", pid);
|
|
if ((fp = fopen(procname, "r")) != NULL) {
|
|
if (fscanf(fp, "%*d (%[^)])", procname) == 1) {
|
|
sprintf(procname+strlen(procname), "/%d", pid);
|
|
printf("%-*s ", serv_width, procname);
|
|
done = 1;
|
|
}
|
|
fclose(fp);
|
|
}
|
|
}
|
|
if (!done)
|
|
printf("%-*d ", serv_width, pid);
|
|
} else {
|
|
printf("%-*d ", serv_width, pid);
|
|
}
|
|
|
|
if (state == NETLINK_CONNECTED) {
|
|
printf("%*d:%-*d",
|
|
addr_width, dst_group, serv_width, dst_pid);
|
|
} else {
|
|
printf("%*s*%-*s",
|
|
addr_width, "", serv_width, "");
|
|
}
|
|
|
|
if (show_details) {
|
|
printf(" sk=%llx cb=%llx groups=0x%08x", sk, cb, groups);
|
|
}
|
|
printf("\n");
|
|
|
|
return;
|
|
}
|
|
|
|
static int netlink_show_sock(struct nlmsghdr *nlh, struct filter *f)
|
|
{
|
|
struct netlink_diag_msg *r = NLMSG_DATA(nlh);
|
|
struct rtattr *tb[NETLINK_DIAG_MAX+1];
|
|
int rq = 0, wq = 0;
|
|
unsigned long groups = 0;
|
|
|
|
parse_rtattr(tb, NETLINK_DIAG_MAX, (struct rtattr*)(r+1),
|
|
nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
|
|
|
|
if (tb[NETLINK_DIAG_GROUPS] && RTA_PAYLOAD(tb[NETLINK_DIAG_GROUPS]))
|
|
groups = *(unsigned long *) RTA_DATA(tb[NETLINK_DIAG_GROUPS]);
|
|
|
|
if (tb[NETLINK_DIAG_MEMINFO]) {
|
|
const __u32 *skmeminfo;
|
|
skmeminfo = RTA_DATA(tb[NETLINK_DIAG_MEMINFO]);
|
|
|
|
rq = skmeminfo[SK_MEMINFO_RMEM_ALLOC];
|
|
wq = skmeminfo[SK_MEMINFO_WMEM_ALLOC];
|
|
}
|
|
|
|
netlink_show_one(f, r->ndiag_protocol, r->ndiag_portid, groups,
|
|
r->ndiag_state, r->ndiag_dst_portid, r->ndiag_dst_group,
|
|
rq, wq, 0, 0);
|
|
|
|
if (show_mem) {
|
|
printf("\t");
|
|
print_skmeminfo(tb, NETLINK_DIAG_MEMINFO);
|
|
printf("\n");
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int netlink_show_netlink(struct filter *f, FILE *dump_fp)
|
|
{
|
|
struct {
|
|
struct nlmsghdr nlh;
|
|
struct netlink_diag_req r;
|
|
} req;
|
|
|
|
memset(&req, 0, sizeof(req));
|
|
req.nlh.nlmsg_len = sizeof(req);
|
|
req.nlh.nlmsg_type = SOCK_DIAG_BY_FAMILY;
|
|
req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST;
|
|
req.nlh.nlmsg_seq = 123456;
|
|
|
|
req.r.sdiag_family = AF_NETLINK;
|
|
req.r.sdiag_protocol = NDIAG_PROTO_ALL;
|
|
req.r.ndiag_show = NDIAG_SHOW_GROUPS | NDIAG_SHOW_MEMINFO;
|
|
|
|
return handle_netlink_request(f, dump_fp, &req.nlh,
|
|
sizeof(req), netlink_show_sock);
|
|
}
|
|
|
|
static int netlink_show(struct filter *f)
|
|
{
|
|
FILE *fp;
|
|
char buf[256];
|
|
int prot, pid;
|
|
unsigned groups;
|
|
int rq, wq, rc;
|
|
unsigned long long sk, cb;
|
|
|
|
if (!(f->states & (1<<SS_CLOSE)))
|
|
return 0;
|
|
|
|
if (!getenv("PROC_NET_NETLINK") && !getenv("PROC_ROOT") &&
|
|
netlink_show_netlink(f, NULL) == 0)
|
|
return 0;
|
|
|
|
if ((fp = net_netlink_open()) == NULL)
|
|
return -1;
|
|
fgets(buf, sizeof(buf)-1, fp);
|
|
|
|
while (fgets(buf, sizeof(buf)-1, fp)) {
|
|
sscanf(buf, "%llx %d %d %x %d %d %llx %d",
|
|
&sk,
|
|
&prot, &pid, &groups, &rq, &wq, &cb, &rc);
|
|
|
|
netlink_show_one(f, prot, pid, groups, 0, 0, 0, rq, wq, sk, cb);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct snmpstat
|
|
{
|
|
int tcp_estab;
|
|
};
|
|
|
|
static int get_snmp_int(char *proto, char *key, int *result)
|
|
{
|
|
char buf[1024];
|
|
FILE *fp;
|
|
int protolen = strlen(proto);
|
|
int keylen = strlen(key);
|
|
|
|
*result = 0;
|
|
|
|
if ((fp = net_snmp_open()) == NULL)
|
|
return -1;
|
|
|
|
while (fgets(buf, sizeof(buf), fp) != NULL) {
|
|
char *p = buf;
|
|
int pos = 0;
|
|
if (memcmp(buf, proto, protolen))
|
|
continue;
|
|
while ((p = strchr(p, ' ')) != NULL) {
|
|
pos++;
|
|
p++;
|
|
if (memcmp(p, key, keylen) == 0 &&
|
|
(p[keylen] == ' ' || p[keylen] == '\n'))
|
|
break;
|
|
}
|
|
if (fgets(buf, sizeof(buf), fp) == NULL)
|
|
break;
|
|
if (memcmp(buf, proto, protolen))
|
|
break;
|
|
p = buf;
|
|
while ((p = strchr(p, ' ')) != NULL) {
|
|
p++;
|
|
if (--pos == 0) {
|
|
sscanf(p, "%d", result);
|
|
fclose(fp);
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
fclose(fp);
|
|
errno = ESRCH;
|
|
return -1;
|
|
}
|
|
|
|
|
|
/* Get stats from sockstat */
|
|
|
|
struct sockstat
|
|
{
|
|
int socks;
|
|
int tcp_mem;
|
|
int tcp_total;
|
|
int tcp_orphans;
|
|
int tcp_tws;
|
|
int tcp4_hashed;
|
|
int udp4;
|
|
int raw4;
|
|
int frag4;
|
|
int frag4_mem;
|
|
int tcp6_hashed;
|
|
int udp6;
|
|
int raw6;
|
|
int frag6;
|
|
int frag6_mem;
|
|
};
|
|
|
|
static void get_sockstat_line(char *line, struct sockstat *s)
|
|
{
|
|
char id[256], rem[256];
|
|
|
|
if (sscanf(line, "%[^ ] %[^\n]\n", id, rem) != 2)
|
|
return;
|
|
|
|
if (strcmp(id, "sockets:") == 0)
|
|
sscanf(rem, "%*s%d", &s->socks);
|
|
else if (strcmp(id, "UDP:") == 0)
|
|
sscanf(rem, "%*s%d", &s->udp4);
|
|
else if (strcmp(id, "UDP6:") == 0)
|
|
sscanf(rem, "%*s%d", &s->udp6);
|
|
else if (strcmp(id, "RAW:") == 0)
|
|
sscanf(rem, "%*s%d", &s->raw4);
|
|
else if (strcmp(id, "RAW6:") == 0)
|
|
sscanf(rem, "%*s%d", &s->raw6);
|
|
else if (strcmp(id, "TCP6:") == 0)
|
|
sscanf(rem, "%*s%d", &s->tcp6_hashed);
|
|
else if (strcmp(id, "FRAG:") == 0)
|
|
sscanf(rem, "%*s%d%*s%d", &s->frag4, &s->frag4_mem);
|
|
else if (strcmp(id, "FRAG6:") == 0)
|
|
sscanf(rem, "%*s%d%*s%d", &s->frag6, &s->frag6_mem);
|
|
else if (strcmp(id, "TCP:") == 0)
|
|
sscanf(rem, "%*s%d%*s%d%*s%d%*s%d%*s%d",
|
|
&s->tcp4_hashed,
|
|
&s->tcp_orphans, &s->tcp_tws, &s->tcp_total, &s->tcp_mem);
|
|
}
|
|
|
|
static int get_sockstat(struct sockstat *s)
|
|
{
|
|
char buf[256];
|
|
FILE *fp;
|
|
|
|
memset(s, 0, sizeof(*s));
|
|
|
|
if ((fp = net_sockstat_open()) == NULL)
|
|
return -1;
|
|
while(fgets(buf, sizeof(buf), fp) != NULL)
|
|
get_sockstat_line(buf, s);
|
|
fclose(fp);
|
|
|
|
if ((fp = net_sockstat6_open()) == NULL)
|
|
return 0;
|
|
while(fgets(buf, sizeof(buf), fp) != NULL)
|
|
get_sockstat_line(buf, s);
|
|
fclose(fp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int print_summary(void)
|
|
{
|
|
struct sockstat s;
|
|
struct snmpstat sn;
|
|
|
|
if (get_sockstat(&s) < 0)
|
|
perror("ss: get_sockstat");
|
|
if (get_snmp_int("Tcp:", "CurrEstab", &sn.tcp_estab) < 0)
|
|
perror("ss: get_snmpstat");
|
|
|
|
printf("Total: %d (kernel %d)\n", s.socks, slabstat.socks);
|
|
|
|
printf("TCP: %d (estab %d, closed %d, orphaned %d, synrecv %d, timewait %d/%d), ports %d\n",
|
|
s.tcp_total + slabstat.tcp_syns + s.tcp_tws,
|
|
sn.tcp_estab,
|
|
s.tcp_total - (s.tcp4_hashed+s.tcp6_hashed-s.tcp_tws),
|
|
s.tcp_orphans,
|
|
slabstat.tcp_syns,
|
|
s.tcp_tws, slabstat.tcp_tws,
|
|
slabstat.tcp_ports
|
|
);
|
|
|
|
printf("\n");
|
|
printf("Transport Total IP IPv6\n");
|
|
printf("* %-9d %-9s %-9s\n", slabstat.socks, "-", "-");
|
|
printf("RAW %-9d %-9d %-9d\n", s.raw4+s.raw6, s.raw4, s.raw6);
|
|
printf("UDP %-9d %-9d %-9d\n", s.udp4+s.udp6, s.udp4, s.udp6);
|
|
printf("TCP %-9d %-9d %-9d\n", s.tcp4_hashed+s.tcp6_hashed, s.tcp4_hashed, s.tcp6_hashed);
|
|
printf("INET %-9d %-9d %-9d\n",
|
|
s.raw4+s.udp4+s.tcp4_hashed+
|
|
s.raw6+s.udp6+s.tcp6_hashed,
|
|
s.raw4+s.udp4+s.tcp4_hashed,
|
|
s.raw6+s.udp6+s.tcp6_hashed);
|
|
printf("FRAG %-9d %-9d %-9d\n", s.frag4+s.frag6, s.frag4, s.frag6);
|
|
|
|
printf("\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void _usage(FILE *dest)
|
|
{
|
|
fprintf(dest,
|
|
"Usage: ss [ OPTIONS ]\n"
|
|
" ss [ OPTIONS ] [ FILTER ]\n"
|
|
" -h, --help this message\n"
|
|
" -V, --version output version information\n"
|
|
" -n, --numeric don't resolve service names\n"
|
|
" -r, --resolve resolve host names\n"
|
|
" -a, --all display all sockets\n"
|
|
" -l, --listening display listening sockets\n"
|
|
" -o, --options show timer information\n"
|
|
" -e, --extended show detailed socket information\n"
|
|
" -m, --memory show socket memory usage\n"
|
|
" -p, --processes show process using socket\n"
|
|
" -i, --info show internal TCP information\n"
|
|
" -s, --summary show socket usage summary\n"
|
|
" -b, --bpf show bpf filter socket information\n"
|
|
"\n"
|
|
" -4, --ipv4 display only IP version 4 sockets\n"
|
|
" -6, --ipv6 display only IP version 6 sockets\n"
|
|
" -0, --packet display PACKET sockets\n"
|
|
" -t, --tcp display only TCP sockets\n"
|
|
" -u, --udp display only UDP sockets\n"
|
|
" -d, --dccp display only DCCP sockets\n"
|
|
" -w, --raw display only RAW sockets\n"
|
|
" -x, --unix display only Unix domain sockets\n"
|
|
" -f, --family=FAMILY display sockets of type FAMILY\n"
|
|
"\n"
|
|
" -A, --query=QUERY, --socket=QUERY\n"
|
|
" QUERY := {all|inet|tcp|udp|raw|unix|unix_dgram|unix_stream|unix_seqpacket|packet|netlink}[,QUERY]\n"
|
|
"\n"
|
|
" -D, --diag=FILE Dump raw information about TCP sockets to FILE\n"
|
|
" -F, --filter=FILE read filter information from FILE\n"
|
|
" FILTER := [ state TCP-STATE ] [ EXPRESSION ]\n"
|
|
);
|
|
}
|
|
|
|
static void help(void) __attribute__((noreturn));
|
|
static void help(void)
|
|
{
|
|
_usage(stdout);
|
|
exit(0);
|
|
}
|
|
|
|
static void usage(void) __attribute__((noreturn));
|
|
static void usage(void)
|
|
{
|
|
_usage(stderr);
|
|
exit(-1);
|
|
}
|
|
|
|
|
|
static int scan_state(const char *state)
|
|
{
|
|
int i;
|
|
if (strcasecmp(state, "close") == 0 ||
|
|
strcasecmp(state, "closed") == 0)
|
|
return (1<<SS_CLOSE);
|
|
if (strcasecmp(state, "syn-rcv") == 0)
|
|
return (1<<SS_SYN_RECV);
|
|
if (strcasecmp(state, "established") == 0)
|
|
return (1<<SS_ESTABLISHED);
|
|
if (strcasecmp(state, "all") == 0)
|
|
return SS_ALL;
|
|
if (strcasecmp(state, "connected") == 0)
|
|
return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN));
|
|
if (strcasecmp(state, "synchronized") == 0)
|
|
return SS_ALL & ~((1<<SS_CLOSE)|(1<<SS_LISTEN)|(1<<SS_SYN_SENT));
|
|
if (strcasecmp(state, "bucket") == 0)
|
|
return (1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT);
|
|
if (strcasecmp(state, "big") == 0)
|
|
return SS_ALL & ~((1<<SS_SYN_RECV)|(1<<SS_TIME_WAIT));
|
|
for (i=0; i<SS_MAX; i++) {
|
|
if (strcasecmp(state, sstate_namel[i]) == 0)
|
|
return (1<<i);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static const struct option long_opts[] = {
|
|
{ "numeric", 0, 0, 'n' },
|
|
{ "resolve", 0, 0, 'r' },
|
|
{ "options", 0, 0, 'o' },
|
|
{ "extended", 0, 0, 'e' },
|
|
{ "memory", 0, 0, 'm' },
|
|
{ "info", 0, 0, 'i' },
|
|
{ "processes", 0, 0, 'p' },
|
|
{ "bpf", 0, 0, 'b' },
|
|
{ "dccp", 0, 0, 'd' },
|
|
{ "tcp", 0, 0, 't' },
|
|
{ "udp", 0, 0, 'u' },
|
|
{ "raw", 0, 0, 'w' },
|
|
{ "unix", 0, 0, 'x' },
|
|
{ "all", 0, 0, 'a' },
|
|
{ "listening", 0, 0, 'l' },
|
|
{ "ipv4", 0, 0, '4' },
|
|
{ "ipv6", 0, 0, '6' },
|
|
{ "packet", 0, 0, '0' },
|
|
{ "family", 1, 0, 'f' },
|
|
{ "socket", 1, 0, 'A' },
|
|
{ "query", 1, 0, 'A' },
|
|
{ "summary", 0, 0, 's' },
|
|
{ "diag", 1, 0, 'D' },
|
|
{ "filter", 1, 0, 'F' },
|
|
{ "version", 0, 0, 'V' },
|
|
{ "help", 0, 0, 'h' },
|
|
{ 0 }
|
|
|
|
};
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
int do_default = 1;
|
|
int saw_states = 0;
|
|
int saw_query = 0;
|
|
int do_summary = 0;
|
|
const char *dump_tcpdiag = NULL;
|
|
FILE *filter_fp = NULL;
|
|
int ch;
|
|
|
|
memset(¤t_filter, 0, sizeof(current_filter));
|
|
|
|
current_filter.states = default_filter.states;
|
|
|
|
while ((ch = getopt_long(argc, argv, "dhaletuwxnro460spbf:miA:D:F:vV",
|
|
long_opts, NULL)) != EOF) {
|
|
switch(ch) {
|
|
case 'n':
|
|
resolve_services = 0;
|
|
break;
|
|
case 'r':
|
|
resolve_hosts = 1;
|
|
break;
|
|
case 'o':
|
|
show_options = 1;
|
|
break;
|
|
case 'e':
|
|
show_options = 1;
|
|
show_details++;
|
|
break;
|
|
case 'm':
|
|
show_mem = 1;
|
|
break;
|
|
case 'i':
|
|
show_tcpinfo = 1;
|
|
break;
|
|
case 'p':
|
|
show_users++;
|
|
user_ent_hash_build();
|
|
break;
|
|
case 'b':
|
|
show_options = 1;
|
|
show_bpf++;
|
|
break;
|
|
case 'd':
|
|
current_filter.dbs |= (1<<DCCP_DB);
|
|
do_default = 0;
|
|
break;
|
|
case 't':
|
|
current_filter.dbs |= (1<<TCP_DB);
|
|
do_default = 0;
|
|
break;
|
|
case 'u':
|
|
current_filter.dbs |= (1<<UDP_DB);
|
|
do_default = 0;
|
|
break;
|
|
case 'w':
|
|
current_filter.dbs |= (1<<RAW_DB);
|
|
do_default = 0;
|
|
break;
|
|
case 'x':
|
|
current_filter.dbs |= UNIX_DBM;
|
|
do_default = 0;
|
|
break;
|
|
case 'a':
|
|
current_filter.states = SS_ALL;
|
|
break;
|
|
case 'l':
|
|
current_filter.states = (1<<SS_LISTEN) | (1<<SS_CLOSE);
|
|
break;
|
|
case '4':
|
|
preferred_family = AF_INET;
|
|
break;
|
|
case '6':
|
|
preferred_family = AF_INET6;
|
|
break;
|
|
case '0':
|
|
preferred_family = AF_PACKET;
|
|
break;
|
|
case 'f':
|
|
if (strcmp(optarg, "inet") == 0)
|
|
preferred_family = AF_INET;
|
|
else if (strcmp(optarg, "inet6") == 0)
|
|
preferred_family = AF_INET6;
|
|
else if (strcmp(optarg, "link") == 0)
|
|
preferred_family = AF_PACKET;
|
|
else if (strcmp(optarg, "unix") == 0)
|
|
preferred_family = AF_UNIX;
|
|
else if (strcmp(optarg, "netlink") == 0)
|
|
preferred_family = AF_NETLINK;
|
|
else if (strcmp(optarg, "help") == 0)
|
|
help();
|
|
else {
|
|
fprintf(stderr, "ss: \"%s\" is invalid family\n", optarg);
|
|
usage();
|
|
}
|
|
break;
|
|
case 'A':
|
|
{
|
|
char *p, *p1;
|
|
if (!saw_query) {
|
|
current_filter.dbs = 0;
|
|
saw_query = 1;
|
|
do_default = 0;
|
|
}
|
|
p = p1 = optarg;
|
|
do {
|
|
if ((p1 = strchr(p, ',')) != NULL)
|
|
*p1 = 0;
|
|
if (strcmp(p, "all") == 0) {
|
|
current_filter.dbs = ALL_DB;
|
|
} else if (strcmp(p, "inet") == 0) {
|
|
current_filter.dbs |= (1<<TCP_DB)|(1<<DCCP_DB)|(1<<UDP_DB)|(1<<RAW_DB);
|
|
} else if (strcmp(p, "udp") == 0) {
|
|
current_filter.dbs |= (1<<UDP_DB);
|
|
} else if (strcmp(p, "dccp") == 0) {
|
|
current_filter.dbs |= (1<<DCCP_DB);
|
|
} else if (strcmp(p, "tcp") == 0) {
|
|
current_filter.dbs |= (1<<TCP_DB);
|
|
} else if (strcmp(p, "raw") == 0) {
|
|
current_filter.dbs |= (1<<RAW_DB);
|
|
} else if (strcmp(p, "unix") == 0) {
|
|
current_filter.dbs |= UNIX_DBM;
|
|
} else if (strcasecmp(p, "unix_stream") == 0 ||
|
|
strcmp(p, "u_str") == 0) {
|
|
current_filter.dbs |= (1<<UNIX_ST_DB);
|
|
} else if (strcasecmp(p, "unix_dgram") == 0 ||
|
|
strcmp(p, "u_dgr") == 0) {
|
|
current_filter.dbs |= (1<<UNIX_DG_DB);
|
|
} else if (strcasecmp(p, "unix_seqpacket") == 0 ||
|
|
strcmp(p, "u_seq") == 0) {
|
|
current_filter.dbs |= (1<<UNIX_SQ_DB);
|
|
} else if (strcmp(p, "packet") == 0) {
|
|
current_filter.dbs |= PACKET_DBM;
|
|
} else if (strcmp(p, "packet_raw") == 0 ||
|
|
strcmp(p, "p_raw") == 0) {
|
|
current_filter.dbs |= (1<<PACKET_R_DB);
|
|
} else if (strcmp(p, "packet_dgram") == 0 ||
|
|
strcmp(p, "p_dgr") == 0) {
|
|
current_filter.dbs |= (1<<PACKET_DG_DB);
|
|
} else if (strcmp(p, "netlink") == 0) {
|
|
current_filter.dbs |= (1<<NETLINK_DB);
|
|
} else {
|
|
fprintf(stderr, "ss: \"%s\" is illegal socket table id\n", p);
|
|
usage();
|
|
}
|
|
p = p1 + 1;
|
|
} while (p1);
|
|
break;
|
|
}
|
|
case 's':
|
|
do_summary = 1;
|
|
break;
|
|
case 'D':
|
|
dump_tcpdiag = optarg;
|
|
break;
|
|
case 'F':
|
|
if (filter_fp) {
|
|
fprintf(stderr, "More than one filter file\n");
|
|
exit(-1);
|
|
}
|
|
if (optarg[0] == '-')
|
|
filter_fp = stdin;
|
|
else
|
|
filter_fp = fopen(optarg, "r");
|
|
if (!filter_fp) {
|
|
perror("fopen filter file");
|
|
exit(-1);
|
|
}
|
|
break;
|
|
case 'v':
|
|
case 'V':
|
|
printf("ss utility, iproute2-ss%s\n", SNAPSHOT);
|
|
exit(0);
|
|
case 'h':
|
|
case '?':
|
|
help();
|
|
default:
|
|
usage();
|
|
}
|
|
}
|
|
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
get_slabstat(&slabstat);
|
|
|
|
if (do_summary) {
|
|
print_summary();
|
|
if (do_default && argc == 0)
|
|
exit(0);
|
|
}
|
|
|
|
if (do_default)
|
|
current_filter.dbs = default_filter.dbs;
|
|
|
|
if (preferred_family == AF_UNSPEC) {
|
|
if (!(current_filter.dbs&~UNIX_DBM))
|
|
preferred_family = AF_UNIX;
|
|
else if (!(current_filter.dbs&~PACKET_DBM))
|
|
preferred_family = AF_PACKET;
|
|
else if (!(current_filter.dbs&~(1<<NETLINK_DB)))
|
|
preferred_family = AF_NETLINK;
|
|
}
|
|
|
|
if (preferred_family != AF_UNSPEC) {
|
|
int mask2;
|
|
if (preferred_family == AF_INET ||
|
|
preferred_family == AF_INET6) {
|
|
mask2= current_filter.dbs;
|
|
} else if (preferred_family == AF_PACKET) {
|
|
mask2 = PACKET_DBM;
|
|
} else if (preferred_family == AF_UNIX) {
|
|
mask2 = UNIX_DBM;
|
|
} else if (preferred_family == AF_NETLINK) {
|
|
mask2 = (1<<NETLINK_DB);
|
|
} else {
|
|
mask2 = 0;
|
|
}
|
|
|
|
if (do_default)
|
|
current_filter.dbs = mask2;
|
|
else
|
|
current_filter.dbs &= mask2;
|
|
current_filter.families = (1<<preferred_family);
|
|
} else {
|
|
if (!do_default)
|
|
current_filter.families = ~0;
|
|
else
|
|
current_filter.families = default_filter.families;
|
|
}
|
|
if (current_filter.dbs == 0) {
|
|
fprintf(stderr, "ss: no socket tables to show with such filter.\n");
|
|
exit(0);
|
|
}
|
|
if (current_filter.families == 0) {
|
|
fprintf(stderr, "ss: no families to show with such filter.\n");
|
|
exit(0);
|
|
}
|
|
|
|
if (resolve_services && resolve_hosts &&
|
|
(current_filter.dbs&(UNIX_DBM|(1<<TCP_DB)|(1<<UDP_DB)|(1<<DCCP_DB))))
|
|
init_service_resolver();
|
|
|
|
/* Now parse filter... */
|
|
if (argc == 0 && filter_fp) {
|
|
if (ssfilter_parse(¤t_filter.f, 0, NULL, filter_fp))
|
|
usage();
|
|
}
|
|
|
|
while (argc > 0) {
|
|
if (strcmp(*argv, "state") == 0) {
|
|
NEXT_ARG();
|
|
if (!saw_states)
|
|
current_filter.states = 0;
|
|
current_filter.states |= scan_state(*argv);
|
|
saw_states = 1;
|
|
} else if (strcmp(*argv, "exclude") == 0 ||
|
|
strcmp(*argv, "excl") == 0) {
|
|
NEXT_ARG();
|
|
if (!saw_states)
|
|
current_filter.states = SS_ALL;
|
|
current_filter.states &= ~scan_state(*argv);
|
|
saw_states = 1;
|
|
} else {
|
|
if (ssfilter_parse(¤t_filter.f, argc, argv, filter_fp))
|
|
usage();
|
|
break;
|
|
}
|
|
argc--; argv++;
|
|
}
|
|
|
|
if (current_filter.states == 0) {
|
|
fprintf(stderr, "ss: no socket states to show with such filter.\n");
|
|
exit(0);
|
|
}
|
|
|
|
if (dump_tcpdiag) {
|
|
FILE *dump_fp = stdout;
|
|
if (!(current_filter.dbs & (1<<TCP_DB))) {
|
|
fprintf(stderr, "ss: tcpdiag dump requested and no tcp in filter.\n");
|
|
exit(0);
|
|
}
|
|
if (dump_tcpdiag[0] != '-') {
|
|
dump_fp = fopen(dump_tcpdiag, "w");
|
|
if (!dump_tcpdiag) {
|
|
perror("fopen dump file");
|
|
exit(-1);
|
|
}
|
|
}
|
|
inet_show_netlink(¤t_filter, dump_fp, IPPROTO_TCP);
|
|
fflush(dump_fp);
|
|
exit(0);
|
|
}
|
|
|
|
netid_width = 0;
|
|
if (current_filter.dbs&(current_filter.dbs-1))
|
|
netid_width = 5;
|
|
|
|
state_width = 0;
|
|
if (current_filter.states&(current_filter.states-1))
|
|
state_width = 10;
|
|
|
|
screen_width = 80;
|
|
if (isatty(STDOUT_FILENO)) {
|
|
struct winsize w;
|
|
|
|
if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &w) != -1) {
|
|
if (w.ws_col > 0)
|
|
screen_width = w.ws_col;
|
|
}
|
|
}
|
|
|
|
addrp_width = screen_width;
|
|
addrp_width -= netid_width+1;
|
|
addrp_width -= state_width+1;
|
|
addrp_width -= 14;
|
|
|
|
if (addrp_width&1) {
|
|
if (netid_width)
|
|
netid_width++;
|
|
else if (state_width)
|
|
state_width++;
|
|
}
|
|
|
|
addrp_width /= 2;
|
|
addrp_width--;
|
|
|
|
serv_width = resolve_services ? 7 : 5;
|
|
|
|
if (addrp_width < 15+serv_width+1)
|
|
addrp_width = 15+serv_width+1;
|
|
|
|
addr_width = addrp_width - serv_width - 1;
|
|
|
|
if (netid_width)
|
|
printf("%-*s ", netid_width, "Netid");
|
|
if (state_width)
|
|
printf("%-*s ", state_width, "State");
|
|
printf("%-6s %-6s ", "Recv-Q", "Send-Q");
|
|
|
|
printf("%*s:%-*s %*s:%-*s\n",
|
|
addr_width, "Local Address", serv_width, "Port",
|
|
addr_width, "Peer Address", serv_width, "Port");
|
|
|
|
fflush(stdout);
|
|
|
|
if (current_filter.dbs & (1<<NETLINK_DB))
|
|
netlink_show(¤t_filter);
|
|
if (current_filter.dbs & PACKET_DBM)
|
|
packet_show(¤t_filter);
|
|
if (current_filter.dbs & UNIX_DBM)
|
|
unix_show(¤t_filter);
|
|
if (current_filter.dbs & (1<<RAW_DB))
|
|
raw_show(¤t_filter);
|
|
if (current_filter.dbs & (1<<UDP_DB))
|
|
udp_show(¤t_filter);
|
|
if (current_filter.dbs & (1<<TCP_DB))
|
|
tcp_show(¤t_filter, IPPROTO_TCP);
|
|
if (current_filter.dbs & (1<<DCCP_DB))
|
|
tcp_show(¤t_filter, IPPROTO_DCCP);
|
|
return 0;
|
|
}
|