static void usage(void)
{
- fprintf(stderr, "Usage: ip -f inet6 tunnel { add | change | del | show } [ NAME ]\n");
- fprintf(stderr, " [ mode { ip6ip6 | ipip6 | ip6gre | vti6 | any } ]\n");
- fprintf(stderr, " [ remote ADDR local ADDR ] [ dev PHYS_DEV ]\n");
- fprintf(stderr, " [ encaplimit ELIM ]\n");
- fprintf(stderr, " [ hoplimit TTL ] [ tclass TCLASS ] [ flowlabel FLOWLABEL ]\n");
- fprintf(stderr, " [ dscp inherit ]\n");
- fprintf(stderr, " [ [no]allow-localremote ]\n");
- fprintf(stderr, " [ [i|o]seq ] [ [i|o]key KEY ] [ [i|o]csum ]\n");
- fprintf(stderr, "\n");
- fprintf(stderr, "Where: NAME := STRING\n");
- fprintf(stderr, " ADDR := IPV6_ADDRESS\n");
- fprintf(stderr, " ELIM := { none | 0..255 }(default=%d)\n",
- IPV6_DEFAULT_TNL_ENCAP_LIMIT);
- fprintf(stderr, " TTL := 0..255 (default=%d)\n",
+ fprintf(stderr,
+ "Usage: ip -f inet6 tunnel { add | change | del | show } [ NAME ]\n"
+ " [ mode { ip6ip6 | ipip6 | ip6gre | vti6 | any } ]\n"
+ " [ remote ADDR local ADDR ] [ dev PHYS_DEV ]\n"
+ " [ encaplimit ELIM ]\n"
+ " [ hoplimit TTL ] [ tclass TCLASS ] [ flowlabel FLOWLABEL ]\n"
+ " [ dscp inherit ]\n"
+ " [ [no]allow-localremote ]\n"
+ " [ [i|o]seq ] [ [i|o]key KEY ] [ [i|o]csum ]\n"
+ "\n"
+ "Where: NAME := STRING\n"
+ " ADDR := IPV6_ADDRESS\n"
+ " ELIM := { none | 0..255 }(default=%d)\n"
+ " TTL := 0..255 (default=%d)\n"
+ " TCLASS := { 0x0..0xff | inherit }\n"
+ " FLOWLABEL := { 0x0..0xfffff | inherit }\n"
+ " KEY := { DOTTED_QUAD | NUMBER }\n",
+ IPV6_DEFAULT_TNL_ENCAP_LIMIT,
DEFAULT_TNL_HOP_LIMIT);
- fprintf(stderr, " TCLASS := { 0x0..0xff | inherit }\n");
- fprintf(stderr, " FLOWLABEL := { 0x0..0xfffff | inherit }\n");
- fprintf(stderr, " KEY := { DOTTED_QUAD | NUMBER }\n");
exit(-1);
}
-static void print_tunnel(struct ip6_tnl_parm2 *p)
+static void print_tunnel(const void *t)
{
- char s1[1024];
- char s2[1024];
+ const struct ip6_tnl_parm2 *p = t;
+ SPRINT_BUF(b1);
/* Do not use format_host() for local addr,
* symbolic name will not be useful.
*/
- printf("%s: %s/ipv6 remote %s local %s",
- p->name,
- tnl_strproto(p->proto),
- format_host_r(AF_INET6, 16, &p->raddr, s1, sizeof(s1)),
- rt_addr_n2a_r(AF_INET6, 16, &p->laddr, s2, sizeof(s2)));
+ open_json_object(NULL);
+ print_color_string(PRINT_ANY, COLOR_IFNAME, "ifname", "%s: ", p->name);
+ snprintf(b1, sizeof(b1), "%s/ipv6", tnl_strproto(p->proto));
+ print_string(PRINT_ANY, "mode", "%s ", b1);
+ print_string(PRINT_FP, NULL, "%s", "remote ");
+ print_color_string(PRINT_ANY, COLOR_INET6, "remote", "%s ",
+ format_host_r(AF_INET6, 16, &p->raddr, b1, sizeof(b1)));
+ print_string(PRINT_FP, NULL, "%s", "local ");
+ print_color_string(PRINT_ANY, COLOR_INET6, "local", "%s",
+ rt_addr_n2a_r(AF_INET6, 16, &p->laddr, b1, sizeof(b1)));
+
if (p->link) {
const char *n = ll_index_to_name(p->link);
if (n)
- printf(" dev %s", n);
+ print_string(PRINT_ANY, "link", " dev %s", n);
}
if (p->flags & IP6_TNL_F_IGN_ENCAP_LIMIT)
- printf(" encaplimit none");
+ print_null(PRINT_ANY, "ip6_tnl_f_ign_encap_limit",
+ " encaplimit none", NULL);
else
- printf(" encaplimit %u", p->encap_limit);
+ print_uint(PRINT_ANY, "encap_limit", " encaplimit %u",
+ p->encap_limit);
- printf(" hoplimit %u", p->hop_limit);
+ if (p->hop_limit)
+ print_uint(PRINT_ANY, "hoplimit", " hoplimit %u", p->hop_limit);
+ else
+ print_string(PRINT_FP, "hoplimit", " hoplimit %s", "inherit");
- if (p->flags & IP6_TNL_F_USE_ORIG_TCLASS)
- printf(" tclass inherit");
- else {
+ if (p->flags & IP6_TNL_F_USE_ORIG_TCLASS) {
+ print_null(PRINT_ANY, "ip6_tnl_f_use_orig_tclass",
+ " tclass inherit", NULL);
+ } else {
__u32 val = ntohl(p->flowinfo & IP6_FLOWINFO_TCLASS);
- printf(" tclass 0x%02x", (__u8)(val >> 20));
+ snprintf(b1, sizeof(b1), "0x%02x", (__u8)(val >> 20));
+ print_string(PRINT_ANY, "tclass", " tclass %s", b1);
}
- if (p->flags & IP6_TNL_F_USE_ORIG_FLOWLABEL)
- printf(" flowlabel inherit");
- else
- printf(" flowlabel 0x%05x", ntohl(p->flowinfo & IP6_FLOWINFO_FLOWLABEL));
+ if (p->flags & IP6_TNL_F_USE_ORIG_FLOWLABEL) {
+ print_null(PRINT_ANY, "ip6_tnl_f_use_orig_flowlabel",
+ " flowlabel inherit", NULL);
+ } else {
+ __u32 val = ntohl(p->flowinfo & IP6_FLOWINFO_FLOWLABEL);
+
+ snprintf(b1, sizeof(b1), "0x%05x", val);
+ print_string(PRINT_ANY, "flowlabel", " flowlabel %s", b1);
+ }
- printf(" (flowinfo 0x%08x)", ntohl(p->flowinfo));
+ snprintf(b1, sizeof(b1), "0x%08x", ntohl(p->flowinfo));
+ print_string(PRINT_ANY, "flowinfo", " (flowinfo %s)", b1);
if (p->flags & IP6_TNL_F_RCV_DSCP_COPY)
- printf(" dscp inherit");
+ print_null(PRINT_ANY, "ip6_tnl_f_rcv_dscp_copy",
+ " dscp inherit", NULL);
if (p->flags & IP6_TNL_F_ALLOW_LOCAL_REMOTE)
- printf(" allow-localremote");
-
- if ((p->i_flags & GRE_KEY) && (p->o_flags & GRE_KEY) &&
- p->o_key == p->i_key)
- printf(" key %u", ntohl(p->i_key));
- else {
- if (p->i_flags & GRE_KEY)
- printf(" ikey %u", ntohl(p->i_key));
- if (p->o_flags & GRE_KEY)
- printf(" okey %u", ntohl(p->o_key));
- }
+ print_null(PRINT_ANY, "ip6_tnl_f_allow_local_remote",
+ " allow-localremote", NULL);
- if (p->proto == IPPROTO_GRE) {
- if (p->i_flags & GRE_SEQ)
- printf("%s Drop packets out of sequence.", _SL_);
- if (p->i_flags & GRE_CSUM)
- printf("%s Checksum in received packet is required.", _SL_);
- if (p->o_flags & GRE_SEQ)
- printf("%s Sequence packets on output.", _SL_);
- if (p->o_flags & GRE_CSUM)
- printf("%s Checksum output packets.", _SL_);
- }
+ tnl_print_gre_flags(p->proto, p->i_flags, p->o_flags,
+ p->i_key, p->o_key);
+
+ close_json_object();
}
static int parse_args(int argc, char **argv, int cmd, struct ip6_tnl_parm2 *p)
inet_prefix raddr;
NEXT_ARG();
- get_prefix(&raddr, *argv, preferred_family);
- if (raddr.family == AF_UNSPEC)
- invarg("\"remote\" address family is AF_UNSPEC", *argv);
+ get_addr(&raddr, *argv, AF_INET6);
memcpy(&p->raddr, &raddr.data, sizeof(p->raddr));
} else if (strcmp(*argv, "local") == 0) {
inet_prefix laddr;
NEXT_ARG();
- get_prefix(&laddr, *argv, preferred_family);
- if (laddr.family == AF_UNSPEC)
- invarg("\"local\" address family is AF_UNSPEC", *argv);
+ get_addr(&laddr, *argv, AF_INET6);
memcpy(&p->laddr, &laddr.data, sizeof(p->laddr));
} else if (strcmp(*argv, "dev") == 0) {
NEXT_ARG();
}
if (medium) {
p->link = ll_name_to_index(medium);
- if (p->link == 0) {
- fprintf(stderr, "Cannot find device \"%s\"\n", medium);
- return -1;
- }
+ if (!p->link)
+ return nodev(medium);
}
return 0;
}
}
}
-/*
- * @p1: user specified parameter
- * @p2: database entry
- */
-static int ip6_tnl_parm_match(const struct ip6_tnl_parm2 *p1,
- const struct ip6_tnl_parm2 *p2)
+static void ip6_tnl_parm_initialize(const struct tnl_print_nlmsg_info *info)
+{
+ const struct ifinfomsg *ifi = info->ifi;
+ const struct ip6_tnl_parm2 *p1 = info->p1;
+ struct ip6_tnl_parm2 *p2 = info->p2;
+
+ ip6_tnl_parm_init(p2, 0);
+ if (ifi->ifi_type == ARPHRD_IP6GRE)
+ p2->proto = IPPROTO_GRE;
+ p2->link = ifi->ifi_index;
+ strcpy(p2->name, p1->name);
+}
+
+static bool ip6_tnl_parm_match(const struct tnl_print_nlmsg_info *info)
{
+ const struct ip6_tnl_parm2 *p1 = info->p1;
+ const struct ip6_tnl_parm2 *p2 = info->p2;
+
return ((!p1->link || p1->link == p2->link) &&
(!p1->name[0] || strcmp(p1->name, p2->name) == 0) &&
(IN6_IS_ADDR_UNSPECIFIED(&p1->laddr) ||
(!p1->flags || (p1->flags & p2->flags)));
}
-static int do_tunnels_list(struct ip6_tnl_parm2 *p)
-{
- char buf[512];
- int err = -1;
- FILE *fp = fopen("/proc/net/dev", "r");
-
- if (fp == NULL) {
- perror("fopen");
- return -1;
- }
-
- /* skip two lines at the begenning of the file */
- if (!fgets(buf, sizeof(buf), fp) ||
- !fgets(buf, sizeof(buf), fp)) {
- fprintf(stderr, "/proc/net/dev read error\n");
- goto end;
- }
-
- while (fgets(buf, sizeof(buf), fp) != NULL) {
- char name[IFNAMSIZ];
- int index, type;
- struct ip6_tnl_parm2 p1 = {};
- char *ptr;
-
- buf[sizeof(buf) - 1] = '\0';
- if ((ptr = strchr(buf, ':')) == NULL ||
- (*ptr++ = 0, sscanf(buf, "%s", name) != 1)) {
- fprintf(stderr, "Wrong format for /proc/net/dev. Giving up.\n");
- goto end;
- }
- if (p->name[0] && strcmp(p->name, name))
- continue;
- index = ll_name_to_index(name);
- if (index == 0)
- continue;
- type = ll_index_to_type(index);
- if (type == -1) {
- fprintf(stderr, "Failed to get type of \"%s\"\n", name);
- continue;
- }
- if (type != ARPHRD_TUNNEL6 && type != ARPHRD_IP6GRE)
- continue;
- ip6_tnl_parm_init(&p1, 0);
- if (type == ARPHRD_IP6GRE)
- p1.proto = IPPROTO_GRE;
- strcpy(p1.name, name);
- p1.link = ll_name_to_index(p1.name);
- if (p1.link == 0)
- continue;
- if (tnl_get_ioctl(p1.name, &p1))
- continue;
- if (!ip6_tnl_parm_match(p, &p1))
- continue;
- print_tunnel(&p1);
- if (show_stats)
- tnl_print_stats(ptr);
- printf("\n");
- }
- err = 0;
- end:
- fclose(fp);
- return err;
-}
-
static int do_show(int argc, char **argv)
{
- struct ip6_tnl_parm2 p;
+ struct ip6_tnl_parm2 p, p1;
- ll_init_map(&rth);
ip6_tnl_parm_init(&p, 0);
p.proto = 0; /* default to any */
if (parse_args(argc, argv, SIOCGETTUNNEL, &p) < 0)
return -1;
- if (!p.name[0] || show_stats)
- do_tunnels_list(&p);
- else {
- if (tnl_get_ioctl(p.name, &p))
- return -1;
- print_tunnel(&p);
- printf("\n");
+ if (!p.name[0] || show_stats) {
+ struct tnl_print_nlmsg_info info = {
+ .p1 = &p,
+ .p2 = &p1,
+ .init = ip6_tnl_parm_initialize,
+ .match = ip6_tnl_parm_match,
+ .print = print_tunnel,
+ };
+
+ return do_tunnels_list(&info);
}
+ if (tnl_get_ioctl(p.name, &p))
+ return -1;
+
+ print_tunnel(&p);
return 0;
}
if (parse_args(argc, argv, cmd, &p) < 0)
return -1;
+ if (!*p.name)
+ fprintf(stderr, "Tunnel interface name not specified\n");
+
if (p.proto == IPPROTO_GRE)
basedev = "ip6gre0";
else if (p.i_flags & VTI_ISVTI)
projects / mirror_iproute2.git / blobdiff