#define DEFAULT_TNL_HOP_LIMIT (64)
-static void print_usage(FILE *f)
-{
- fprintf(f, "Usage: ip link { add | set | change | replace | del } NAME\n");
- fprintf(f, " [ mode { ip6ip6 | ipip6 | any } ]\n");
- fprintf(f, " type ip6tnl [ remote ADDR ] [ local ADDR ]\n");
- fprintf(f, " [ dev PHYS_DEV ] [ encaplimit ELIM ]\n");
- fprintf(f ," [ hoplimit HLIM ] [ tclass TCLASS ] [ flowlabel FLOWLABEL ]\n");
- fprintf(f, " [ dscp inherit ] [ fwmark inherit ]\n");
- fprintf(f, "\n");
- fprintf(f, "Where: NAME := STRING\n");
- fprintf(f, " ADDR := IPV6_ADDRESS\n");
- fprintf(f, " ELIM := { none | 0..255 }(default=%d)\n",
- IPV6_DEFAULT_TNL_ENCAP_LIMIT);
- fprintf(f, " HLIM := 0..255 (default=%d)\n",
- DEFAULT_TNL_HOP_LIMIT);
- fprintf(f, " TCLASS := { 0x0..0xff | inherit }\n");
- fprintf(f, " FLOWLABEL := { 0x0..0xfffff | inherit }\n");
-}
-
-static void usage(void) __attribute__((noreturn));
-static void usage(void)
+static void ip6tunnel_print_help(struct link_util *lu, int argc, char **argv,
+ FILE *f)
{
- print_usage(stderr);
- exit(-1);
+ const char *mode;
+
+ fprintf(f,
+ "Usage: ... %-6s [ remote ADDR ]\n",
+ lu->id
+ );
+ fprintf(f,
+ " [ local ADDR ]\n"
+ " [ encaplimit ELIM ]\n"
+ " [ hoplimit HLIM ]\n"
+ " [ tclass TCLASS ]\n"
+ " [ flowlabel FLOWLABEL ]\n"
+ " [ dscp inherit ]\n"
+ " [ [no]allow-localremote ]\n"
+ " [ dev PHYS_DEV ]\n"
+ " [ fwmark MARK ]\n"
+ " [ external ]\n"
+ " [ noencap ]\n"
+ " [ encap { fou | gue | none } ]\n"
+ " [ encap-sport PORT ]\n"
+ " [ encap-dport PORT ]\n"
+ " [ [no]encap-csum ]\n"
+ " [ [no]encap-csum6 ]\n"
+ " [ [no]encap-remcsum ]\n"
+ );
+ mode = "{ ip6ip6 | ipip6 | any }";
+ fprintf(f,
+ " [ mode %s ]\n"
+ "\n",
+ mode
+ );
+ fprintf(f,
+ "Where: ADDR := IPV6_ADDRESS\n"
+ " ELIM := { none | 0..255 }(default=%d)\n"
+ " HLIM := 0..255 (default=%d)\n"
+ " TCLASS := { 0x0..0xff | inherit }\n"
+ " FLOWLABEL := { 0x0..0xfffff | inherit }\n"
+ " MARK := { 0x0..0xffffffff | inherit }\n",
+ IPV6_DEFAULT_TNL_ENCAP_LIMIT, DEFAULT_TNL_HOP_LIMIT
+ );
}
static int ip6tunnel_parse_opt(struct link_util *lu, int argc, char **argv,
struct nlmsghdr *n)
{
+ struct ifinfomsg *ifi = NLMSG_DATA(n);
struct {
struct nlmsghdr n;
struct ifinfomsg i;
- char buf[2048];
- } req;
- struct ifinfomsg *ifi = (struct ifinfomsg *)(n + 1);
+ } req = {
+ .n.nlmsg_len = NLMSG_LENGTH(sizeof(*ifi)),
+ .n.nlmsg_flags = NLM_F_REQUEST,
+ .n.nlmsg_type = RTM_GETLINK,
+ .i.ifi_family = preferred_family,
+ .i.ifi_index = ifi->ifi_index,
+ };
+ struct nlmsghdr *answer;
struct rtattr *tb[IFLA_MAX + 1];
struct rtattr *linkinfo[IFLA_INFO_MAX+1];
struct rtattr *iptuninfo[IFLA_IPTUN_MAX + 1];
int len;
- struct in6_addr laddr;
- struct in6_addr raddr;
+ inet_prefix saddr, daddr;
__u8 hop_limit = DEFAULT_TNL_HOP_LIMIT;
__u8 encap_limit = IPV6_DEFAULT_TNL_ENCAP_LIMIT;
__u32 flowinfo = 0;
__u32 flags = 0;
- __u32 link = 0;
__u8 proto = 0;
+ __u32 link = 0;
+ __u16 encaptype = 0;
+ __u16 encapflags = TUNNEL_ENCAP_FLAG_CSUM6;
+ __u16 encapsport = 0;
+ __u16 encapdport = 0;
+ __u8 metadata = 0;
+ __u32 fwmark = 0;
- memset(&laddr, 0, sizeof(laddr));
- memset(&raddr, 0, sizeof(raddr));
+ inet_prefix_reset(&saddr);
+ inet_prefix_reset(&daddr);
if (!(n->nlmsg_flags & NLM_F_CREATE)) {
- memset(&req, 0, sizeof(req));
-
- req.n.nlmsg_len = NLMSG_LENGTH(sizeof(*ifi));
- req.n.nlmsg_flags = NLM_F_REQUEST;
- req.n.nlmsg_type = RTM_GETLINK;
- req.i.ifi_family = preferred_family;
- req.i.ifi_index = ifi->ifi_index;
+ const struct rtattr *rta;
- if (rtnl_talk(&rth, &req.n, 0, 0, &req.n) < 0) {
+ if (rtnl_talk(&rth, &req.n, &answer) < 0) {
get_failed:
fprintf(stderr,
"Failed to get existing tunnel info.\n");
return -1;
}
- len = req.n.nlmsg_len;
+ len = answer->nlmsg_len;
len -= NLMSG_LENGTH(sizeof(*ifi));
if (len < 0)
goto get_failed;
- parse_rtattr(tb, IFLA_MAX, IFLA_RTA(&req.i), len);
+ parse_rtattr(tb, IFLA_MAX, IFLA_RTA(NLMSG_DATA(answer)), len);
if (!tb[IFLA_LINKINFO])
goto get_failed;
parse_rtattr_nested(iptuninfo, IFLA_IPTUN_MAX,
linkinfo[IFLA_INFO_DATA]);
- if (iptuninfo[IFLA_IPTUN_LOCAL])
- memcpy(&laddr, RTA_DATA(iptuninfo[IFLA_IPTUN_LOCAL]),
- sizeof(laddr));
+ rta = iptuninfo[IFLA_IPTUN_LOCAL];
+ if (rta && get_addr_rta(&saddr, rta, AF_INET6))
+ goto get_failed;
- if (iptuninfo[IFLA_IPTUN_REMOTE])
- memcpy(&raddr, RTA_DATA(iptuninfo[IFLA_IPTUN_REMOTE]),
- sizeof(raddr));
+ rta = iptuninfo[IFLA_IPTUN_REMOTE];
+ if (rta && get_addr_rta(&daddr, rta, AF_INET6))
+ goto get_failed;
if (iptuninfo[IFLA_IPTUN_TTL])
hop_limit = rta_getattr_u8(iptuninfo[IFLA_IPTUN_TTL]);
if (iptuninfo[IFLA_IPTUN_PROTO])
proto = rta_getattr_u8(iptuninfo[IFLA_IPTUN_PROTO]);
+ if (iptuninfo[IFLA_IPTUN_COLLECT_METADATA])
+ metadata = 1;
+
+ if (iptuninfo[IFLA_IPTUN_FWMARK])
+ fwmark = rta_getattr_u32(iptuninfo[IFLA_IPTUN_FWMARK]);
+
+ free(answer);
}
while (argc > 0) {
- if (matches(*argv, "mode") == 0) {
+ if (strcmp(*argv, "mode") == 0) {
NEXT_ARG();
if (strcmp(*argv, "ipv6/ipv6") == 0 ||
strcmp(*argv, "ip6ip6") == 0)
else
invarg("Cannot guess tunnel mode.", *argv);
} else if (strcmp(*argv, "remote") == 0) {
- inet_prefix addr;
NEXT_ARG();
- get_prefix(&addr, *argv, preferred_family);
- if (addr.family == AF_UNSPEC)
- invarg("\"remote\" address family is AF_UNSPEC", *argv);
- memcpy(&raddr, addr.data, addr.bytelen);
+ get_addr(&daddr, *argv, AF_INET6);
} else if (strcmp(*argv, "local") == 0) {
- inet_prefix addr;
NEXT_ARG();
- get_prefix(&addr, *argv, preferred_family);
- if (addr.family == AF_UNSPEC)
- invarg("\"local\" address family is AF_UNSPEC", *argv);
- memcpy(&laddr, addr.data, addr.bytelen);
+ get_addr(&saddr, *argv, AF_INET6);
} else if (matches(*argv, "dev") == 0) {
NEXT_ARG();
- link = if_nametoindex(*argv);
- if (link == 0)
- invarg("\"dev\" is invalid", *argv);
- } else if (strcmp(*argv, "hoplimit") == 0 ||
- strcmp(*argv, "ttl") == 0 ||
+ link = ll_name_to_index(*argv);
+ if (!link)
+ exit(nodev(*argv));
+ } else if (strcmp(*argv, "ttl") == 0 ||
+ strcmp(*argv, "hoplimit") == 0 ||
strcmp(*argv, "hlim") == 0) {
- __u8 uval;
NEXT_ARG();
- if (get_u8(&uval, *argv, 0))
- invarg("invalid HLIM", *argv);
- hop_limit = uval;
- } else if (matches(*argv, "encaplimit") == 0) {
+ if (strcmp(*argv, "inherit") != 0) {
+ if (get_u8(&hop_limit, *argv, 0))
+ invarg("invalid HLIM\n", *argv);
+ } else
+ hop_limit = 0;
+ } else if (strcmp(*argv, "encaplimit") == 0) {
NEXT_ARG();
if (strcmp(*argv, "none") == 0) {
flags |= IP6_TNL_F_IGN_ENCAP_LIMIT;
} else {
__u8 uval;
+
if (get_u8(&uval, *argv, 0) < -1)
invarg("invalid ELIM", *argv);
encap_limit = uval;
flags &= ~IP6_TNL_F_IGN_ENCAP_LIMIT;
}
- } else if (strcmp(*argv, "tclass") == 0 ||
+ } else if (strcmp(*argv, "tos") == 0 ||
+ strcmp(*argv, "tclass") == 0 ||
strcmp(*argv, "tc") == 0 ||
- strcmp(*argv, "tos") == 0 ||
matches(*argv, "dsfield") == 0) {
__u8 uval;
+
NEXT_ARG();
flowinfo &= ~IP6_FLOWINFO_TCLASS;
if (strcmp(*argv, "inherit") == 0)
} else if (strcmp(*argv, "flowlabel") == 0 ||
strcmp(*argv, "fl") == 0) {
__u32 uval;
+
NEXT_ARG();
flowinfo &= ~IP6_FLOWINFO_FLOWLABEL;
if (strcmp(*argv, "inherit") == 0)
flags |= IP6_TNL_F_RCV_DSCP_COPY;
} else if (strcmp(*argv, "fwmark") == 0) {
NEXT_ARG();
- if (strcmp(*argv, "inherit") != 0)
- invarg("not inherit", *argv);
- flags |= IP6_TNL_F_USE_ORIG_FWMARK;
- } else
- usage();
+ if (strcmp(*argv, "inherit") == 0) {
+ flags |= IP6_TNL_F_USE_ORIG_FWMARK;
+ fwmark = 0;
+ } else {
+ if (get_u32(&fwmark, *argv, 0))
+ invarg("invalid fwmark\n", *argv);
+ flags &= ~IP6_TNL_F_USE_ORIG_FWMARK;
+ }
+ } else if (strcmp(*argv, "allow-localremote") == 0) {
+ flags |= IP6_TNL_F_ALLOW_LOCAL_REMOTE;
+ } else if (strcmp(*argv, "noallow-localremote") == 0) {
+ flags &= ~IP6_TNL_F_ALLOW_LOCAL_REMOTE;
+ } else if (strcmp(*argv, "noencap") == 0) {
+ encaptype = TUNNEL_ENCAP_NONE;
+ } else if (strcmp(*argv, "encap") == 0) {
+ NEXT_ARG();
+ if (strcmp(*argv, "fou") == 0)
+ encaptype = TUNNEL_ENCAP_FOU;
+ else if (strcmp(*argv, "gue") == 0)
+ encaptype = TUNNEL_ENCAP_GUE;
+ else if (strcmp(*argv, "none") == 0)
+ encaptype = TUNNEL_ENCAP_NONE;
+ else
+ invarg("Invalid encap type.", *argv);
+ } else if (strcmp(*argv, "encap-sport") == 0) {
+ NEXT_ARG();
+ if (strcmp(*argv, "auto") == 0)
+ encapsport = 0;
+ else if (get_u16(&encapsport, *argv, 0))
+ invarg("Invalid source port.", *argv);
+ } else if (strcmp(*argv, "encap-dport") == 0) {
+ NEXT_ARG();
+ if (get_u16(&encapdport, *argv, 0))
+ invarg("Invalid destination port.", *argv);
+ } else if (strcmp(*argv, "encap-csum") == 0) {
+ encapflags |= TUNNEL_ENCAP_FLAG_CSUM;
+ } else if (strcmp(*argv, "noencap-csum") == 0) {
+ encapflags &= ~TUNNEL_ENCAP_FLAG_CSUM;
+ } else if (strcmp(*argv, "encap-udp6-csum") == 0) {
+ encapflags |= TUNNEL_ENCAP_FLAG_CSUM6;
+ } else if (strcmp(*argv, "noencap-udp6-csum") == 0) {
+ encapflags &= ~TUNNEL_ENCAP_FLAG_CSUM6;
+ } else if (strcmp(*argv, "encap-remcsum") == 0) {
+ encapflags |= TUNNEL_ENCAP_FLAG_REMCSUM;
+ } else if (strcmp(*argv, "noencap-remcsum") == 0) {
+ encapflags &= ~TUNNEL_ENCAP_FLAG_REMCSUM;
+ } else if (strcmp(*argv, "external") == 0) {
+ metadata = 1;
+ } else {
+ ip6tunnel_print_help(lu, argc, argv, stderr);
+ return -1;
+ }
argc--, argv++;
}
addattr8(n, 1024, IFLA_IPTUN_PROTO, proto);
- addattr_l(n, 1024, IFLA_IPTUN_LOCAL, &laddr, sizeof(laddr));
- addattr_l(n, 1024, IFLA_IPTUN_REMOTE, &raddr, sizeof(raddr));
+ if (metadata) {
+ addattr_l(n, 1024, IFLA_IPTUN_COLLECT_METADATA, NULL, 0);
+ return 0;
+ }
+
+ if (is_addrtype_inet_not_unspec(&saddr)) {
+ addattr_l(n, 1024, IFLA_IPTUN_LOCAL,
+ saddr.data, saddr.bytelen);
+ }
+ if (is_addrtype_inet_not_unspec(&daddr)) {
+ addattr_l(n, 1024, IFLA_IPTUN_REMOTE,
+ daddr.data, daddr.bytelen);
+ }
addattr8(n, 1024, IFLA_IPTUN_TTL, hop_limit);
addattr8(n, 1024, IFLA_IPTUN_ENCAP_LIMIT, encap_limit);
addattr32(n, 1024, IFLA_IPTUN_FLOWINFO, flowinfo);
addattr32(n, 1024, IFLA_IPTUN_FLAGS, flags);
addattr32(n, 1024, IFLA_IPTUN_LINK, link);
+ addattr32(n, 1024, IFLA_IPTUN_FWMARK, fwmark);
+
+ addattr16(n, 1024, IFLA_IPTUN_ENCAP_TYPE, encaptype);
+ addattr16(n, 1024, IFLA_IPTUN_ENCAP_FLAGS, encapflags);
+ addattr16(n, 1024, IFLA_IPTUN_ENCAP_SPORT, htons(encapsport));
+ addattr16(n, 1024, IFLA_IPTUN_ENCAP_DPORT, htons(encapdport));
return 0;
}
static void ip6tunnel_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
{
- char s1[256];
char s2[64];
- int flags = 0;
+ __u32 flags = 0;
__u32 flowinfo = 0;
+ __u8 ttl = 0;
if (!tb)
return;
+ if (tb[IFLA_IPTUN_COLLECT_METADATA]) {
+ print_bool(PRINT_ANY, "external", "external", true);
+ return;
+ }
+
if (tb[IFLA_IPTUN_FLAGS])
flags = rta_getattr_u32(tb[IFLA_IPTUN_FLAGS]);
if (tb[IFLA_IPTUN_PROTO]) {
switch (rta_getattr_u8(tb[IFLA_IPTUN_PROTO])) {
case IPPROTO_IPIP:
- fprintf(f, "ipip6 ");
+ print_string(PRINT_ANY, "proto", "%s ", "ipip6");
break;
case IPPROTO_IPV6:
- fprintf(f, "ip6ip6 ");
+ print_string(PRINT_ANY, "proto", "%s ", "ip6ip6");
break;
case 0:
- fprintf(f, "any ");
+ print_string(PRINT_ANY, "proto", "%s ", "any");
break;
}
}
- if (tb[IFLA_IPTUN_REMOTE]) {
- fprintf(f, "remote %s ",
- rt_addr_n2a(AF_INET6,
- RTA_DATA(tb[IFLA_IPTUN_REMOTE]),
- s1, sizeof(s1)));
- }
-
- if (tb[IFLA_IPTUN_LOCAL]) {
- fprintf(f, "local %s ",
- rt_addr_n2a(AF_INET6,
- RTA_DATA(tb[IFLA_IPTUN_LOCAL]),
- s1, sizeof(s1)));
- }
+ tnl_print_endpoint("remote", tb[IFLA_IPTUN_REMOTE], AF_INET6);
+ tnl_print_endpoint("local", tb[IFLA_IPTUN_LOCAL], AF_INET6);
- if (tb[IFLA_IPTUN_LINK] && rta_getattr_u32(tb[IFLA_IPTUN_LINK])) {
- unsigned link = rta_getattr_u32(tb[IFLA_IPTUN_LINK]);
- const char *n = if_indextoname(link, s2);
+ if (tb[IFLA_IPTUN_LINK]) {
+ __u32 link = rta_getattr_u32(tb[IFLA_IPTUN_LINK]);
- if (n)
- fprintf(f, "dev %s ", n);
- else
- fprintf(f, "dev %u ", link);
+ if (link) {
+ print_string(PRINT_ANY, "link", "dev %s ",
+ ll_index_to_name(link));
+ }
}
- if (flags & IP6_TNL_F_IGN_ENCAP_LIMIT)
- printf("encaplimit none ");
- else if (tb[IFLA_IPTUN_ENCAP_LIMIT])
- fprintf(f, "encaplimit %u ",
- rta_getattr_u8(tb[IFLA_IPTUN_ENCAP_LIMIT]));
-
if (tb[IFLA_IPTUN_TTL])
- fprintf(f, "hoplimit %u ", rta_getattr_u8(tb[IFLA_IPTUN_TTL]));
+ ttl = rta_getattr_u8(tb[IFLA_IPTUN_TTL]);
+ if (is_json_context() || ttl)
+ print_uint(PRINT_ANY, "ttl", "hoplimit %u ", ttl);
+ else
+ print_string(PRINT_FP, NULL, "hoplimit %s ", "inherit");
- if (flags & IP6_TNL_F_USE_ORIG_TCLASS)
- printf("tclass inherit ");
- else if (tb[IFLA_IPTUN_FLOWINFO]) {
- __u32 val = ntohl(flowinfo & IP6_FLOWINFO_TCLASS);
+ if (flags & IP6_TNL_F_IGN_ENCAP_LIMIT) {
+ print_bool(PRINT_ANY,
+ "ip6_tnl_f_ign_encap_limit",
+ "encaplimit none ",
+ true);
+ } else if (tb[IFLA_IPTUN_ENCAP_LIMIT]) {
+ __u8 val = rta_getattr_u8(tb[IFLA_IPTUN_ENCAP_LIMIT]);
- printf("tclass 0x%02x ", (__u8)(val >> 20));
+ print_uint(PRINT_ANY, "encap_limit", "encaplimit %u ", val);
}
- if (flags & IP6_TNL_F_USE_ORIG_FLOWLABEL)
- printf("flowlabel inherit ");
- else
- printf("flowlabel 0x%05x ", ntohl(flowinfo & IP6_FLOWINFO_FLOWLABEL));
+ if (flags & IP6_TNL_F_USE_ORIG_TCLASS) {
+ print_bool(PRINT_ANY,
+ "ip6_tnl_f_use_orig_tclass",
+ "tclass inherit ",
+ true);
+ } else if (tb[IFLA_IPTUN_FLOWINFO]) {
+ __u32 val = ntohl(flowinfo & IP6_FLOWINFO_TCLASS) >> 20;
+
+ snprintf(s2, sizeof(s2), "0x%02x", val);
+ print_string(PRINT_ANY, "tclass", "tclass %s ", s2);
+ }
+
+ if (flags & IP6_TNL_F_USE_ORIG_FLOWLABEL) {
+ print_bool(PRINT_ANY,
+ "ip6_tnl_f_use_orig_flowlabel",
+ "flowlabel inherit ",
+ true);
+ } else if (tb[IFLA_IPTUN_FLOWINFO]) {
+ __u32 val = ntohl(flowinfo & IP6_FLOWINFO_FLOWLABEL);
- printf("(flowinfo 0x%08x) ", ntohl(flowinfo));
+ snprintf(s2, sizeof(s2), "0x%05x", val);
+ print_string(PRINT_ANY, "flowlabel", "flowlabel %s ", s2);
+ }
if (flags & IP6_TNL_F_RCV_DSCP_COPY)
- printf("dscp inherit ");
+ print_bool(PRINT_ANY,
+ "ip6_tnl_f_rcv_dscp_copy",
+ "dscp inherit ",
+ true);
if (flags & IP6_TNL_F_MIP6_DEV)
- fprintf(f, "mip6 ");
-
- if (flags & IP6_TNL_F_USE_ORIG_FWMARK)
- fprintf(f, "fwmark inherit ");
-}
+ print_bool(PRINT_ANY, "ip6_tnl_f_mip6_dev", "mip6 ", true);
+
+ if (flags & IP6_TNL_F_ALLOW_LOCAL_REMOTE)
+ print_bool(PRINT_ANY,
+ "ip6_tnl_f_allow_local_remote",
+ "allow-localremote ",
+ true);
+
+ if (flags & IP6_TNL_F_USE_ORIG_FWMARK) {
+ print_bool(PRINT_ANY,
+ "ip6_tnl_f_use_orig_fwmark",
+ "fwmark inherit ",
+ true);
+ } else if (tb[IFLA_IPTUN_FWMARK]) {
+ __u32 fwmark = rta_getattr_u32(tb[IFLA_IPTUN_FWMARK]);
+
+ if (fwmark) {
+ print_0xhex(PRINT_ANY,
+ "fwmark", "fwmark 0x%x ", fwmark);
+ }
+ }
-static void ip6tunnel_print_help(struct link_util *lu, int argc, char **argv,
- FILE *f)
-{
- print_usage(f);
+ tnl_print_encap(tb,
+ IFLA_IPTUN_ENCAP_TYPE,
+ IFLA_IPTUN_ENCAP_FLAGS,
+ IFLA_IPTUN_ENCAP_SPORT,
+ IFLA_IPTUN_ENCAP_DPORT);
}
struct link_util ip6tnl_link_util = {
projects / mirror_iproute2.git / blobdiff