#define DEFAULT_TNL_HOP_LIMIT (64)
-static void print_usage(FILE *f)
+static void gre_print_help(struct link_util *lu, int argc, char **argv, FILE *f)
{
fprintf(f,
- "Usage: ... { ip6gre | ip6gretap | ip6erspan} [ remote ADDR ]\n"
- " [ local ADDR ]\n"
- " [ [i|o]seq ]\n"
- " [ [i|o]key KEY ]\n"
- " [ [i|o]csum ]\n"
- " [ hoplimit TTL ]\n"
- " [ encaplimit ELIM ]\n"
- " [ tclass TCLASS ]\n"
- " [ flowlabel FLOWLABEL ]\n"
- " [ dscp inherit ]\n"
- " [ fwmark MARK ]\n"
- " [ dev PHYS_DEV ]\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"
- " [ erspan_ver version ]\n"
- " [ erspan IDX ]\n"
- " [ erspan_dir { ingress | egress } ]\n"
- " [ erspan_hwid hwid ]\n"
- " [ external ]\n"
+ "Usage: ... %-9s [ remote ADDR ]\n",
+ lu->id
+ );
+ fprintf(f,
+ " [ local ADDR ]\n"
+ " [ [no][i|o]seq ]\n"
+ " [ [i|o]key KEY | no[i|o]key ]\n"
+ " [ [no][i|o]csum ]\n"
+ " [ hoplimit TTL ]\n"
+ " [ encaplimit ELIM ]\n"
+ " [ tclass TCLASS ]\n"
+ " [ flowlabel FLOWLABEL ]\n"
+ " [ dscp inherit ]\n"
+ " [ dev PHYS_DEV ]\n"
+ " [ fwmark MARK ]\n"
+ " [ [no]allow-localremote ]\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"
+ " [ erspan_ver version ]\n"
+ " [ erspan IDX ]\n"
+ " [ erspan_dir { ingress | egress } ]\n"
+ " [ erspan_hwid hwid ]\n"
"\n"
+ );
+ fprintf(f,
"Where: ADDR := IPV6_ADDRESS\n"
" TTL := { 0..255 } (default=%d)\n"
" KEY := { DOTTED_QUAD | NUMBER }\n"
);
}
-static void usage(void) __attribute__((noreturn));
-static void usage(void)
-{
- print_usage(stderr);
- exit(-1);
-}
-
static int gre_parse_opt(struct link_util *lu, int argc, char **argv,
struct nlmsghdr *n)
{
- struct ifinfomsg *ifi = (struct ifinfomsg *)(n + 1);
+ struct ifinfomsg *ifi = NLMSG_DATA(n);
struct {
struct nlmsghdr n;
struct ifinfomsg i;
struct rtattr *tb[IFLA_MAX + 1];
struct rtattr *linkinfo[IFLA_INFO_MAX+1];
struct rtattr *greinfo[IFLA_GRE_MAX + 1];
+ int len;
__u16 iflags = 0;
__u16 oflags = 0;
__be32 ikey = 0;
__be32 okey = 0;
- struct in6_addr raddr = IN6ADDR_ANY_INIT;
- struct in6_addr laddr = IN6ADDR_ANY_INIT;
- unsigned int link = 0;
- unsigned int flowinfo = 0;
- unsigned int flags = 0;
+ 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;
__u16 encaptype = 0;
__u16 encapflags = TUNNEL_ENCAP_FLAG_CSUM6;
__u16 encapsport = 0;
__u16 encapdport = 0;
__u8 metadata = 0;
- int len;
__u32 fwmark = 0;
__u32 erspan_idx = 0;
__u8 erspan_ver = 0;
__u8 erspan_dir = 0;
__u16 erspan_hwid = 0;
+ inet_prefix_reset(&saddr);
+ inet_prefix_reset(&daddr);
+
if (!(n->nlmsg_flags & NLM_F_CREATE)) {
+ const struct rtattr *rta;
+
if (rtnl_talk(&rth, &req.n, &answer) < 0) {
get_failed:
fprintf(stderr,
parse_rtattr_nested(greinfo, IFLA_GRE_MAX,
linkinfo[IFLA_INFO_DATA]);
+ rta = greinfo[IFLA_GRE_LOCAL];
+ if (rta && get_addr_rta(&saddr, rta, AF_INET6))
+ goto get_failed;
+
+ rta = greinfo[IFLA_GRE_REMOTE];
+ if (rta && get_addr_rta(&daddr, rta, AF_INET6))
+ goto get_failed;
+
if (greinfo[IFLA_GRE_IKEY])
ikey = rta_getattr_u32(greinfo[IFLA_GRE_IKEY]);
if (greinfo[IFLA_GRE_OFLAGS])
oflags = rta_getattr_u16(greinfo[IFLA_GRE_OFLAGS]);
- if (greinfo[IFLA_GRE_LOCAL])
- memcpy(&laddr, RTA_DATA(greinfo[IFLA_GRE_LOCAL]), sizeof(laddr));
-
- if (greinfo[IFLA_GRE_REMOTE])
- memcpy(&raddr, RTA_DATA(greinfo[IFLA_GRE_REMOTE]), sizeof(raddr));
-
if (greinfo[IFLA_GRE_TTL])
hop_limit = rta_getattr_u8(greinfo[IFLA_GRE_TTL]);
if (greinfo[IFLA_GRE_ENCAP_SPORT])
encapsport = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_SPORT]);
- if (greinfo[IFLA_GRE_COLLECT_METADATA])
- metadata = 1;
-
if (greinfo[IFLA_GRE_ENCAP_DPORT])
encapdport = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_DPORT]);
+ if (greinfo[IFLA_GRE_COLLECT_METADATA])
+ metadata = 1;
+
if (greinfo[IFLA_GRE_FWMARK])
fwmark = rta_getattr_u32(greinfo[IFLA_GRE_FWMARK]);
iflags |= GRE_KEY;
oflags |= GRE_KEY;
ikey = okey = tnl_parse_key("key", *argv);
+ } else if (!matches(*argv, "nokey")) {
+ iflags &= ~GRE_KEY;
+ oflags &= ~GRE_KEY;
+ ikey = okey = 0;
} else if (!matches(*argv, "ikey")) {
NEXT_ARG();
iflags |= GRE_KEY;
ikey = tnl_parse_key("ikey", *argv);
+ } else if (!matches(*argv, "noikey")) {
+ iflags &= ~GRE_KEY;
+ ikey = 0;
} else if (!matches(*argv, "okey")) {
NEXT_ARG();
oflags |= GRE_KEY;
okey = tnl_parse_key("okey", *argv);
+ } else if (!matches(*argv, "nookey")) {
+ oflags &= ~GRE_KEY;
+ okey = 0;
} else if (!matches(*argv, "seq")) {
iflags |= GRE_SEQ;
oflags |= GRE_SEQ;
+ } else if (!matches(*argv, "noseq")) {
+ iflags &= ~GRE_SEQ;
+ oflags &= ~GRE_SEQ;
} else if (!matches(*argv, "iseq")) {
iflags |= GRE_SEQ;
+ } else if (!matches(*argv, "noiseq")) {
+ iflags &= ~GRE_SEQ;
} else if (!matches(*argv, "oseq")) {
oflags |= GRE_SEQ;
+ } else if (!matches(*argv, "nooseq")) {
+ oflags &= ~GRE_SEQ;
} else if (!matches(*argv, "csum")) {
iflags |= GRE_CSUM;
oflags |= GRE_CSUM;
+ } else if (!matches(*argv, "nocsum")) {
+ iflags &= ~GRE_CSUM;
+ oflags &= ~GRE_CSUM;
} else if (!matches(*argv, "icsum")) {
iflags |= GRE_CSUM;
+ } else if (!matches(*argv, "noicsum")) {
+ iflags &= ~GRE_CSUM;
} else if (!matches(*argv, "ocsum")) {
oflags |= GRE_CSUM;
+ } else if (!matches(*argv, "noocsum")) {
+ oflags &= ~GRE_CSUM;
} else if (!matches(*argv, "remote")) {
- inet_prefix addr;
-
NEXT_ARG();
- get_addr(&addr, *argv, AF_INET6);
- memcpy(&raddr, &addr.data, sizeof(raddr));
+ get_addr(&daddr, *argv, AF_INET6);
} else if (!matches(*argv, "local")) {
- inet_prefix addr;
-
NEXT_ARG();
- get_addr(&addr, *argv, AF_INET6);
- memcpy(&laddr, &addr.data, sizeof(laddr));
+ get_addr(&saddr, *argv, AF_INET6);
} else if (!matches(*argv, "dev")) {
NEXT_ARG();
- link = if_nametoindex(*argv);
- if (link == 0) {
- fprintf(stderr, "Cannot find device \"%s\"\n",
- *argv);
- exit(-1);
- }
+ link = ll_name_to_index(*argv);
+ if (!link)
+ exit(nodev(*argv));
} else if (!matches(*argv, "ttl") ||
- !matches(*argv, "hoplimit")) {
- __u8 uval;
-
+ !matches(*argv, "hoplimit") ||
+ !matches(*argv, "hlim")) {
NEXT_ARG();
- if (get_u8(&uval, *argv, 0))
- invarg("invalid TTL", *argv);
- hop_limit = uval;
+ if (strcmp(*argv, "inherit") != 0) {
+ if (get_u8(&hop_limit, *argv, 0))
+ invarg("invalid HLIM\n", *argv);
+ } else
+ hop_limit = 0;
} else if (!matches(*argv, "tos") ||
!matches(*argv, "tclass") ||
!matches(*argv, "dsfield")) {
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, "encaplimit") == 0) {
NEXT_ARG();
if (strcmp(*argv, "none") == 0) {
NEXT_ARG();
if (get_u16(&erspan_hwid, *argv, 0))
invarg("invalid erspan hwid\n", *argv);
- } else
- usage();
+ } else {
+ gre_print_help(lu, argc, argv, stderr);
+ return -1;
+ }
argc--; argv++;
}
- if (!metadata) {
- addattr32(n, 1024, IFLA_GRE_IKEY, ikey);
- addattr32(n, 1024, IFLA_GRE_OKEY, okey);
- addattr_l(n, 1024, IFLA_GRE_IFLAGS, &iflags, 2);
- addattr_l(n, 1024, IFLA_GRE_OFLAGS, &oflags, 2);
- addattr_l(n, 1024, IFLA_GRE_LOCAL, &laddr, sizeof(laddr));
- addattr_l(n, 1024, IFLA_GRE_REMOTE, &raddr, sizeof(raddr));
- if (link)
- addattr32(n, 1024, IFLA_GRE_LINK, link);
- addattr_l(n, 1024, IFLA_GRE_TTL, &hop_limit, 1);
- addattr_l(n, 1024, IFLA_GRE_ENCAP_LIMIT, &encap_limit, 1);
- addattr_l(n, 1024, IFLA_GRE_FLOWINFO, &flowinfo, 4);
- addattr32(n, 1024, IFLA_GRE_FLAGS, flags);
- addattr32(n, 1024, IFLA_GRE_FWMARK, fwmark);
- if (erspan_ver) {
- addattr8(n, 1024, IFLA_GRE_ERSPAN_VER, erspan_ver);
- if (erspan_ver == 1 && erspan_idx != 0) {
- addattr32(n, 1024, IFLA_GRE_ERSPAN_INDEX, erspan_idx);
- } else {
- addattr8(n, 1024, IFLA_GRE_ERSPAN_DIR, erspan_dir);
- addattr16(n, 1024, IFLA_GRE_ERSPAN_HWID, erspan_hwid);
- }
- }
- addattr16(n, 1024, IFLA_GRE_ENCAP_TYPE, encaptype);
- addattr16(n, 1024, IFLA_GRE_ENCAP_FLAGS, encapflags);
- addattr16(n, 1024, IFLA_GRE_ENCAP_SPORT, htons(encapsport));
- addattr16(n, 1024, IFLA_GRE_ENCAP_DPORT, htons(encapdport));
- } else {
+ if (metadata) {
addattr_l(n, 1024, IFLA_GRE_COLLECT_METADATA, NULL, 0);
+ return 0;
+ }
+
+ addattr32(n, 1024, IFLA_GRE_IKEY, ikey);
+ addattr32(n, 1024, IFLA_GRE_OKEY, okey);
+ addattr_l(n, 1024, IFLA_GRE_IFLAGS, &iflags, 2);
+ addattr_l(n, 1024, IFLA_GRE_OFLAGS, &oflags, 2);
+ if (is_addrtype_inet_not_unspec(&saddr))
+ addattr_l(n, 1024, IFLA_GRE_LOCAL, saddr.data, saddr.bytelen);
+ if (is_addrtype_inet_not_unspec(&daddr))
+ addattr_l(n, 1024, IFLA_GRE_REMOTE, daddr.data, daddr.bytelen);
+ if (link)
+ addattr32(n, 1024, IFLA_GRE_LINK, link);
+ addattr_l(n, 1024, IFLA_GRE_TTL, &hop_limit, 1);
+ addattr_l(n, 1024, IFLA_GRE_ENCAP_LIMIT, &encap_limit, 1);
+ addattr_l(n, 1024, IFLA_GRE_FLOWINFO, &flowinfo, 4);
+ addattr32(n, 1024, IFLA_GRE_FLAGS, flags);
+ addattr32(n, 1024, IFLA_GRE_FWMARK, fwmark);
+ if (erspan_ver) {
+ addattr8(n, 1024, IFLA_GRE_ERSPAN_VER, erspan_ver);
+ if (erspan_ver == 1 && erspan_idx != 0) {
+ addattr32(n, 1024, IFLA_GRE_ERSPAN_INDEX, erspan_idx);
+ } else if (erspan_ver == 2) {
+ addattr8(n, 1024, IFLA_GRE_ERSPAN_DIR, erspan_dir);
+ addattr16(n, 1024, IFLA_GRE_ERSPAN_HWID, erspan_hwid);
+ }
}
+ addattr16(n, 1024, IFLA_GRE_ENCAP_TYPE, encaptype);
+ addattr16(n, 1024, IFLA_GRE_ENCAP_FLAGS, encapflags);
+ addattr16(n, 1024, IFLA_GRE_ENCAP_SPORT, htons(encapsport));
+ addattr16(n, 1024, IFLA_GRE_ENCAP_DPORT, htons(encapdport));
return 0;
}
static void gre_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[])
{
char s2[64];
- const char *local = "any";
- const char *remote = "any";
- unsigned int iflags = 0;
- unsigned int oflags = 0;
- unsigned int flags = 0;
+ __u16 iflags = 0;
+ __u16 oflags = 0;
+ __u32 flags = 0;
__u32 flowinfo = 0;
- struct in6_addr in6_addr_any = IN6ADDR_ANY_INIT;
__u8 ttl = 0;
if (!tb)
return;
if (tb[IFLA_GRE_COLLECT_METADATA]) {
- print_bool(PRINT_ANY, "collect_metadata", "external", true);
+ print_bool(PRINT_ANY, "external", "external", true);
return;
}
if (tb[IFLA_GRE_FLOWINFO])
flowinfo = rta_getattr_u32(tb[IFLA_GRE_FLOWINFO]);
- if (tb[IFLA_GRE_REMOTE]) {
- struct in6_addr addr;
-
- memcpy(&addr, RTA_DATA(tb[IFLA_GRE_REMOTE]), sizeof(addr));
-
- if (memcmp(&addr, &in6_addr_any, sizeof(addr)))
- remote = format_host(AF_INET6, sizeof(addr), &addr);
- }
-
- print_string(PRINT_ANY, "remote", "remote %s ", remote);
-
- if (tb[IFLA_GRE_LOCAL]) {
- struct in6_addr addr;
-
- memcpy(&addr, RTA_DATA(tb[IFLA_GRE_LOCAL]), sizeof(addr));
-
- if (memcmp(&addr, &in6_addr_any, sizeof(addr)))
- local = format_host(AF_INET6, sizeof(addr), &addr);
- }
-
- print_string(PRINT_ANY, "local", "local %s ", local);
+ tnl_print_endpoint("remote", tb[IFLA_GRE_REMOTE], AF_INET6);
+ tnl_print_endpoint("local", tb[IFLA_GRE_LOCAL], AF_INET6);
if (tb[IFLA_GRE_LINK]) {
- unsigned int link = rta_getattr_u32(tb[IFLA_GRE_LINK]);
+ __u32 link = rta_getattr_u32(tb[IFLA_GRE_LINK]);
if (link) {
print_string(PRINT_ANY, "link", "dev %s ",
if (oflags & GRE_CSUM)
print_bool(PRINT_ANY, "ocsum", "ocsum ", 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",
if (tb[IFLA_GRE_ERSPAN_INDEX]) {
__u32 erspan_idx = rta_getattr_u32(tb[IFLA_GRE_ERSPAN_INDEX]);
- print_uint(PRINT_ANY, "erspan_index", "erspan_index %u ", erspan_idx);
+
+ print_uint(PRINT_ANY,
+ "erspan_index", "erspan_index %u ", erspan_idx);
}
if (tb[IFLA_GRE_ERSPAN_VER]) {
__u8 erspan_ver = rta_getattr_u8(tb[IFLA_GRE_ERSPAN_VER]);
- print_uint(PRINT_ANY, "erspan_ver", "erspan_ver %u ", erspan_ver);
+ print_uint(PRINT_ANY,
+ "erspan_ver", "erspan_ver %u ", erspan_ver);
}
if (tb[IFLA_GRE_ERSPAN_DIR]) {
if (tb[IFLA_GRE_ERSPAN_HWID]) {
__u16 erspan_hwid = rta_getattr_u16(tb[IFLA_GRE_ERSPAN_HWID]);
- print_hex(PRINT_ANY, "erspan_hwid", "erspan_hwid 0x%x ", erspan_hwid);
- }
-
- if (tb[IFLA_GRE_ENCAP_TYPE] &&
- rta_getattr_u16(tb[IFLA_GRE_ENCAP_TYPE]) != TUNNEL_ENCAP_NONE) {
- __u16 type = rta_getattr_u16(tb[IFLA_GRE_ENCAP_TYPE]);
- __u16 flags = rta_getattr_u16(tb[IFLA_GRE_ENCAP_FLAGS]);
- __u16 sport = rta_getattr_u16(tb[IFLA_GRE_ENCAP_SPORT]);
- __u16 dport = rta_getattr_u16(tb[IFLA_GRE_ENCAP_DPORT]);
-
- open_json_object("encap");
-
- print_string(PRINT_FP, NULL, "encap ", NULL);
- switch (type) {
- case TUNNEL_ENCAP_FOU:
- print_string(PRINT_ANY, "type", "%s ", "fou");
- break;
- case TUNNEL_ENCAP_GUE:
- print_string(PRINT_ANY, "type", "%s ", "gue");
- break;
- default:
- print_null(PRINT_ANY, "type", "unknown ", NULL);
- break;
- }
-
- if (is_json_context()) {
- print_uint(PRINT_JSON,
- "sport",
- NULL,
- sport ? ntohs(sport) : 0);
- print_uint(PRINT_JSON, "dport", NULL, ntohs(dport));
- print_bool(PRINT_JSON, "csum", NULL,
- flags & TUNNEL_ENCAP_FLAG_CSUM);
- print_bool(PRINT_JSON, "csum6", NULL,
- flags & TUNNEL_ENCAP_FLAG_CSUM6);
- print_bool(PRINT_JSON, "remcsum", NULL,
- flags & TUNNEL_ENCAP_FLAG_REMCSUM);
- close_json_object();
- } else {
- if (sport == 0)
- fputs("encap-sport auto ", f);
- else
- fprintf(f, "encap-sport %u", ntohs(sport));
- }
+ print_0xhex(PRINT_ANY,
+ "erspan_hwid", "erspan_hwid 0x%x ", erspan_hwid);
}
tnl_print_encap(tb,
IFLA_GRE_ENCAP_DPORT);
}
-static void gre_print_help(struct link_util *lu, int argc, char **argv,
- FILE *f)
-{
- print_usage(f);
-}
-
struct link_util ip6gre_link_util = {
.id = "ip6gre",
.maxattr = IFLA_GRE_MAX,
projects / mirror_iproute2.git / blobdiff