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iprule: add json support
More JSON and colorizing. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: David Ahern <dsahern@gmail.com>
This commit is contained in:
Stephen Hemminger
David Ahern
parent
a7ad1c8a68
commit
0dd4ccc56c
184
ip/iprule.c
184
ip/iprule.c
@ -26,6 +26,7 @@
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#include "rt_names.h"
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#include "utils.h"
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#include "ip_common.h"
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#include "json_print.h"
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enum list_action {
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IPRULE_LIST,
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@ -179,13 +180,12 @@ static bool filter_nlmsg(struct nlmsghdr *n, struct rtattr **tb, int host_len)
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int print_rule(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
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{
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FILE *fp = (FILE *)arg;
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FILE *fp = arg;
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struct fib_rule_hdr *frh = NLMSG_DATA(n);
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int len = n->nlmsg_len;
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int host_len = -1;
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__u32 table;
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__u32 table, prio = 0;
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struct rtattr *tb[FRA_MAX+1];
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SPRINT_BUF(b1);
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if (n->nlmsg_type != RTM_NEWRULE && n->nlmsg_type != RTM_DELRULE)
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@ -202,50 +202,54 @@ int print_rule(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
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if (!filter_nlmsg(n, tb, host_len))
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return 0;
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open_json_object(NULL);
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if (n->nlmsg_type == RTM_DELRULE)
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fprintf(fp, "Deleted ");
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print_bool(PRINT_ANY, "deleted", "Deleted ", true);
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if (tb[FRA_PRIORITY])
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fprintf(fp, "%u:\t",
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rta_getattr_u32(tb[FRA_PRIORITY]));
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else
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fprintf(fp, "0:\t");
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prio = rta_getattr_u32(tb[FRA_PRIORITY]);
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print_uint(PRINT_ANY, "priority", "%u:\t", prio);
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if (frh->flags & FIB_RULE_INVERT)
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fprintf(fp, "not ");
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print_null(PRINT_ANY, "not", "not ", NULL);
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if (tb[FRA_SRC]) {
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if (frh->src_len != host_len) {
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fprintf(fp, "from %s/%u ",
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rt_addr_n2a_rta(frh->family, tb[FRA_SRC]),
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frh->src_len);
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} else {
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fprintf(fp, "from %s ",
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format_host_rta(frh->family, tb[FRA_SRC]));
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}
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const char *src = rt_addr_n2a_rta(frh->family, tb[FRA_SRC]);
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print_string(PRINT_FP, NULL, "from ", NULL);
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print_color_string(PRINT_ANY, ifa_family_color(frh->family),
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"src", "%s", src);
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if (frh->src_len != host_len)
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print_uint(PRINT_ANY, "srclen", "/%u ", frh->src_len);
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else
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print_string(PRINT_FP, NULL, " ", NULL);
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} else if (frh->src_len) {
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fprintf(fp, "from 0/%d ", frh->src_len);
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print_string(PRINT_ANY, "src", "from %s", "0");
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print_uint(PRINT_ANY, "srclen", "/%u ", frh->src_len);
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} else {
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fprintf(fp, "from all ");
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print_string(PRINT_ANY, "src", "from %s ", "all");
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}
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if (tb[FRA_DST]) {
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if (frh->dst_len != host_len) {
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fprintf(fp, "to %s/%u ",
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rt_addr_n2a_rta(frh->family, tb[FRA_DST]),
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frh->dst_len);
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} else {
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fprintf(fp, "to %s ",
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format_host_rta(frh->family, tb[FRA_DST]));
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}
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const char *dst = rt_addr_n2a_rta(frh->family, tb[FRA_DST]);
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print_string(PRINT_FP, NULL, "to ", NULL);
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print_color_string(PRINT_ANY, ifa_family_color(frh->family),
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"dst", "%s ", dst);
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if (frh->dst_len != host_len)
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print_uint(PRINT_ANY, "dstlen", "/%u ", frh->dst_len);
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else
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print_string(PRINT_FP, NULL, " ", NULL);
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} else if (frh->dst_len) {
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fprintf(fp, "to 0/%d ", frh->dst_len);
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print_string(PRINT_ANY, "dst", "to %s", "0");
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print_uint(PRINT_ANY, "dstlen", "/%u ", frh->dst_len);
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}
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if (frh->tos) {
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SPRINT_BUF(b1);
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fprintf(fp, "tos %s ",
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rtnl_dsfield_n2a(frh->tos, b1, sizeof(b1)));
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print_string(PRINT_ANY, "tos",
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"tos %s ",
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rtnl_dsfield_n2a(frh->tos, b1, sizeof(b1)));
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}
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if (tb[FRA_FWMARK] || tb[FRA_FWMASK]) {
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@ -255,53 +259,76 @@ int print_rule(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
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mark = rta_getattr_u32(tb[FRA_FWMARK]);
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if (tb[FRA_FWMASK] &&
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(mask = rta_getattr_u32(tb[FRA_FWMASK])) != 0xFFFFFFFF)
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fprintf(fp, "fwmark 0x%x/0x%x ", mark, mask);
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else
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fprintf(fp, "fwmark 0x%x ", mark);
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(mask = rta_getattr_u32(tb[FRA_FWMASK])) != 0xFFFFFFFF) {
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print_0xhex(PRINT_ANY, "fwmark", "fwmark 0x%x", mark);
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print_0xhex(PRINT_ANY, "fwmask", "/0x%x ", mask);
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} else {
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print_0xhex(PRINT_ANY, "fwmark", "fwmark 0x%x ", mark);
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}
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}
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if (tb[FRA_IFNAME]) {
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fprintf(fp, "iif %s ", rta_getattr_str(tb[FRA_IFNAME]));
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if (!is_json_context())
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fprintf(fp, "iif ");
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print_color_string(PRINT_ANY, COLOR_IFNAME,
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"iif", "%s ",
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rta_getattr_str(tb[FRA_IFNAME]));
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if (frh->flags & FIB_RULE_IIF_DETACHED)
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fprintf(fp, "[detached] ");
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print_null(PRINT_ANY, "iif_detached", "[detached] ",
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NULL);
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}
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if (tb[FRA_OIFNAME]) {
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fprintf(fp, "oif %s ", rta_getattr_str(tb[FRA_OIFNAME]));
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if (!is_json_context())
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fprintf(fp, "oif ");
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print_color_string(PRINT_ANY, COLOR_IFNAME, "oif", "%s ",
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rta_getattr_str(tb[FRA_OIFNAME]));
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if (frh->flags & FIB_RULE_OIF_DETACHED)
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fprintf(fp, "[detached] ");
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print_null(PRINT_ANY, "oif_detached", "[detached] ",
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NULL);
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}
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if (tb[FRA_L3MDEV]) {
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if (rta_getattr_u8(tb[FRA_L3MDEV]))
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fprintf(fp, "lookup [l3mdev-table] ");
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__u8 mdev = rta_getattr_u8(tb[FRA_L3MDEV]);
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if (mdev)
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print_null(PRINT_ANY, "l3mdev",
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"lookup [l3mdev-table] ", NULL);
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}
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if (tb[FRA_UID_RANGE]) {
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struct fib_rule_uid_range *r = RTA_DATA(tb[FRA_UID_RANGE]);
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fprintf(fp, "uidrange %u-%u ", r->start, r->end);
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print_uint(PRINT_ANY, "uid_start", "uidrange %u", r->start);
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print_uint(PRINT_ANY, "uid_end", "-%u ", r->end);
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}
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table = frh_get_table(frh, tb);
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if (table) {
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fprintf(fp, "lookup %s ",
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rtnl_rttable_n2a(table, b1, sizeof(b1)));
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print_string(PRINT_ANY, "table",
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"lookup %s ",
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rtnl_rttable_n2a(table, b1, sizeof(b1)));
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if (tb[FRA_SUPPRESS_PREFIXLEN]) {
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int pl = rta_getattr_u32(tb[FRA_SUPPRESS_PREFIXLEN]);
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if (pl != -1)
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fprintf(fp, "suppress_prefixlength %d ", pl);
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print_int(PRINT_ANY, "suppress_prefixlen",
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"suppress_prefixlength %d ", pl);
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}
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if (tb[FRA_SUPPRESS_IFGROUP]) {
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int group = rta_getattr_u32(tb[FRA_SUPPRESS_IFGROUP]);
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if (group != -1) {
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SPRINT_BUF(b1);
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fprintf(fp, "suppress_ifgroup %s ",
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rtnl_group_n2a(group, b1, sizeof(b1)));
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const char *grname
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= rtnl_group_n2a(group, b1, sizeof(b1));
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print_string(PRINT_ANY, "suppress_ifgroup",
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"suppress_ifgroup %s ", grname);
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}
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}
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}
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@ -311,47 +338,52 @@ int print_rule(const struct sockaddr_nl *who, struct nlmsghdr *n, void *arg)
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__u32 from = to>>16;
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to &= 0xFFFF;
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if (from) {
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fprintf(fp, "realms %s/",
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rtnl_rtrealm_n2a(from, b1, sizeof(b1)));
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}
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fprintf(fp, "%s ",
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rtnl_rtrealm_n2a(to, b1, sizeof(b1)));
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if (from)
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print_string(PRINT_ANY,
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"flow_from", "realms %s/",
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rtnl_rtrealm_n2a(from, b1, sizeof(b1)));
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print_string(PRINT_ANY, "flow_to", "%s ",
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rtnl_rtrealm_n2a(to, b1, sizeof(b1)));
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}
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if (frh->action == RTN_NAT) {
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if (tb[RTA_GATEWAY]) {
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fprintf(fp, "map-to %s ",
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format_host_rta(frh->family,
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tb[RTA_GATEWAY]));
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} else
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fprintf(fp, "masquerade");
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const char *gateway;
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gateway = format_host_rta(frh->family, tb[RTA_GATEWAY]);
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print_string(PRINT_ANY, "nat_gateway",
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"map-to %s ", gateway);
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} else {
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print_null(PRINT_ANY, "masquerade", "masquerade", NULL);
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}
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} else if (frh->action == FR_ACT_GOTO) {
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fprintf(fp, "goto ");
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if (tb[FRA_GOTO])
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fprintf(fp, "%u", rta_getattr_u32(tb[FRA_GOTO]));
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print_uint(PRINT_ANY, "goto", "goto %u",
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rta_getattr_u32(tb[FRA_GOTO]));
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else
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fprintf(fp, "none");
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print_string(PRINT_ANY, "goto", "goto %s", "none");
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if (frh->flags & FIB_RULE_UNRESOLVED)
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fprintf(fp, " [unresolved]");
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} else if (frh->action == FR_ACT_NOP)
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fprintf(fp, "nop");
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else if (frh->action != FR_ACT_TO_TBL)
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fprintf(fp, "%s",
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rtnl_rtntype_n2a(frh->action,
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b1, sizeof(b1)));
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print_null(PRINT_ANY, "unresolved", "unresolved", NULL);
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} else if (frh->action == FR_ACT_NOP) {
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print_null(PRINT_ANY, "nop", "nop", NULL);
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} else if (frh->action != FR_ACT_TO_TBL) {
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print_string(PRINT_ANY, "to_tbl", "%s",
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rtnl_rtntype_n2a(frh->action, b1, sizeof(b1)));
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}
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if (tb[FRA_PROTOCOL]) {
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__u8 protocol = rta_getattr_u8(tb[FRA_PROTOCOL]);
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if ((protocol && protocol != RTPROT_KERNEL) ||
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show_details > 0) {
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fprintf(fp, " proto %s ",
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rtnl_rtprot_n2a(protocol, b1, sizeof(b1)));
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if ((protocol && protocol != RTPROT_KERNEL) || show_details > 0) {
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print_string(PRINT_ANY, "protocol", " proto %s ",
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rtnl_rtprot_n2a(protocol, b1, sizeof(b1)));
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}
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}
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fprintf(fp, "\n");
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print_string(PRINT_FP, NULL, "\n", "");
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close_json_object();
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fflush(fp);
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return 0;
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}
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@ -554,10 +586,12 @@ static int iprule_list_flush_or_save(int argc, char **argv, int action)
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return 1;
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}
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new_json_obj(json);
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if (rtnl_dump_filter(&rth, filter_fn, stdout) < 0) {
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fprintf(stderr, "Dump terminated\n");
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return 1;
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}
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delete_json_obj();
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return 0;
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}
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