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113 lines
2.1 KiB
C
113 lines
2.1 KiB
C
#ifndef __TC_EMATCH_H_
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#define __TC_EMATCH_H_
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#include <ctype.h>
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#include <stdlib.h>
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#include <string.h>
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#include <limits.h>
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#include "utils.h"
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#include "tc_util.h"
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#define EMATCHKINDSIZ 16
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struct bstr
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{
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char *data;
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unsigned int len;
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int quoted;
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struct bstr *next;
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};
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extern struct bstr * bstr_alloc(const char *text);
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static inline struct bstr * bstr_new(char *data, unsigned int len)
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{
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struct bstr *b = calloc(1, sizeof(*b));
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if (b == NULL)
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return NULL;
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b->data = data;
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b->len = len;
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return b;
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}
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static inline int bstrcmp(struct bstr *b, const char *text)
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{
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int len = strlen(text);
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int d = b->len - len;
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if (d == 0)
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return strncmp(b->data, text, len);
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return d;
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}
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static inline struct bstr *bstr_next(struct bstr *b)
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{
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return b->next;
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}
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extern unsigned long bstrtoul(const struct bstr *b);
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extern void bstr_print(FILE *fd, const struct bstr *b, int ascii);
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struct ematch
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{
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struct bstr *args;
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int index;
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int inverted;
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int relation;
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int child_ref;
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struct ematch *child;
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struct ematch *next;
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};
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static inline struct ematch * new_ematch(struct bstr *args, int inverted)
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{
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struct ematch *e = calloc(1, sizeof(*e));
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if (e == NULL)
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return NULL;
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e->args = args;
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e->inverted = inverted;
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return e;
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}
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extern void print_ematch_tree(const struct ematch *tree);
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struct ematch_util
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{
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char kind[EMATCHKINDSIZ];
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int kind_num;
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int (*parse_eopt)(struct nlmsghdr *,struct tcf_ematch_hdr *,
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struct bstr *);
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int (*print_eopt)(FILE *, struct tcf_ematch_hdr *, void *, int);
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void (*print_usage)(FILE *);
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struct ematch_util *next;
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};
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static inline int parse_layer(struct bstr *b)
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{
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if (*((char *) b->data) == 'l')
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return TCF_LAYER_LINK;
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else if (*((char *) b->data) == 'n')
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return TCF_LAYER_NETWORK;
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else if (*((char *) b->data) == 't')
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return TCF_LAYER_TRANSPORT;
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else
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return INT_MAX;
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}
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extern int em_parse_error(int err, struct bstr *args, struct bstr *carg,
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struct ematch_util *, char *fmt, ...);
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extern int print_ematch(FILE *, const struct rtattr *);
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extern int parse_ematch(int *, char ***, int, struct nlmsghdr *);
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#endif
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