| /* |
| * link_gre.c gre driver module |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| * |
| * Authors: Herbert Xu <herbert@gondor.apana.org.au> |
| * |
| */ |
| |
| #include <string.h> |
| #include <net/if.h> |
| #include <sys/types.h> |
| #include <sys/socket.h> |
| #include <arpa/inet.h> |
| |
| #include <linux/ip.h> |
| #include <linux/if_tunnel.h> |
| #include "rt_names.h" |
| #include "utils.h" |
| #include "ip_common.h" |
| #include "tunnel.h" |
| |
| static bool gre_is_erspan(struct link_util *lu) |
| { |
| return !strcmp(lu->id, "erspan"); |
| } |
| |
| static void gre_print_help(struct link_util *lu, int argc, char **argv, FILE *f) |
| { |
| bool is_erspan = gre_is_erspan(lu); |
| |
| fprintf(f, |
| "Usage: ... %-9s [ remote ADDR ]\n" |
| " [ local ADDR ]\n" |
| " [ [no][i|o]seq ]\n" |
| " [ [i|o]key KEY | no[i|o]key ]\n" |
| " [ [no][i|o]csum ]\n" |
| " [ ttl TTL ]\n" |
| " [ tos TOS ]\n" |
| " [ [no]pmtudisc ]\n" |
| " [ [no]ignore-df ]\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", lu->id); |
| if (is_erspan) |
| fprintf(f, |
| " [ erspan_ver version ]\n" |
| " [ erspan IDX ]\n" |
| " [ erspan_dir { ingress | egress } ]\n" |
| " [ erspan_hwid hwid ]\n"); |
| fprintf(f, |
| "\n" |
| "Where: ADDR := { IP_ADDRESS | any }\n" |
| " TOS := { NUMBER | inherit }\n" |
| " TTL := { 1..255 | inherit }\n" |
| " KEY := { DOTTED_QUAD | NUMBER }\n" |
| " MARK := { 0x0..0xffffffff }\n"); |
| } |
| |
| static int gre_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; |
| } 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 *greinfo[IFLA_GRE_MAX + 1]; |
| int len; |
| __u16 iflags = 0; |
| __u16 oflags = 0; |
| __be32 ikey = 0; |
| __be32 okey = 0; |
| inet_prefix saddr, daddr; |
| __u8 pmtudisc = 1; |
| __u8 ignore_df = 0; |
| __u8 tos = 0; |
| __u8 ttl = 0; |
| __u32 link = 0; |
| __u16 encaptype = 0; |
| __u16 encapflags = 0; |
| __u16 encapsport = 0; |
| __u16 encapdport = 0; |
| __u8 metadata = 0; |
| __u32 fwmark = 0; |
| bool is_erspan = gre_is_erspan(lu); |
| __u32 erspan_idx = 0; |
| __u8 erspan_ver = 1; |
| __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, |
| "Failed to get existing tunnel info.\n"); |
| return -1; |
| } |
| |
| len = answer->nlmsg_len; |
| len -= NLMSG_LENGTH(sizeof(*ifi)); |
| if (len < 0) |
| goto get_failed; |
| |
| parse_rtattr(tb, IFLA_MAX, IFLA_RTA(NLMSG_DATA(answer)), len); |
| |
| if (!tb[IFLA_LINKINFO]) |
| goto get_failed; |
| |
| parse_rtattr_nested(linkinfo, IFLA_INFO_MAX, tb[IFLA_LINKINFO]); |
| |
| if (!linkinfo[IFLA_INFO_DATA]) |
| goto get_failed; |
| |
| parse_rtattr_nested(greinfo, IFLA_GRE_MAX, |
| linkinfo[IFLA_INFO_DATA]); |
| |
| rta = greinfo[IFLA_GRE_LOCAL]; |
| if (rta && get_addr_rta(&saddr, rta, AF_INET)) |
| goto get_failed; |
| |
| rta = greinfo[IFLA_GRE_REMOTE]; |
| if (rta && get_addr_rta(&daddr, rta, AF_INET)) |
| goto get_failed; |
| |
| if (greinfo[IFLA_GRE_IKEY]) |
| ikey = rta_getattr_u32(greinfo[IFLA_GRE_IKEY]); |
| |
| if (greinfo[IFLA_GRE_OKEY]) |
| okey = rta_getattr_u32(greinfo[IFLA_GRE_OKEY]); |
| |
| if (greinfo[IFLA_GRE_IFLAGS]) |
| iflags = rta_getattr_u16(greinfo[IFLA_GRE_IFLAGS]); |
| |
| if (greinfo[IFLA_GRE_OFLAGS]) |
| oflags = rta_getattr_u16(greinfo[IFLA_GRE_OFLAGS]); |
| |
| if (greinfo[IFLA_GRE_PMTUDISC]) |
| pmtudisc = rta_getattr_u8( |
| greinfo[IFLA_GRE_PMTUDISC]); |
| |
| if (greinfo[IFLA_GRE_IGNORE_DF]) |
| ignore_df = |
| !!rta_getattr_u8(greinfo[IFLA_GRE_IGNORE_DF]); |
| |
| if (greinfo[IFLA_GRE_TOS]) |
| tos = rta_getattr_u8(greinfo[IFLA_GRE_TOS]); |
| |
| if (greinfo[IFLA_GRE_TTL]) |
| ttl = rta_getattr_u8(greinfo[IFLA_GRE_TTL]); |
| |
| if (greinfo[IFLA_GRE_LINK]) |
| link = rta_getattr_u32(greinfo[IFLA_GRE_LINK]); |
| |
| if (greinfo[IFLA_GRE_ENCAP_TYPE]) |
| encaptype = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_TYPE]); |
| |
| if (greinfo[IFLA_GRE_ENCAP_FLAGS]) |
| encapflags = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_FLAGS]); |
| |
| if (greinfo[IFLA_GRE_ENCAP_SPORT]) |
| encapsport = rta_getattr_u16(greinfo[IFLA_GRE_ENCAP_SPORT]); |
| |
| 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]); |
| |
| if (greinfo[IFLA_GRE_ERSPAN_INDEX]) |
| erspan_idx = rta_getattr_u32(greinfo[IFLA_GRE_ERSPAN_INDEX]); |
| |
| if (greinfo[IFLA_GRE_ERSPAN_VER]) |
| erspan_ver = rta_getattr_u8(greinfo[IFLA_GRE_ERSPAN_VER]); |
| |
| if (greinfo[IFLA_GRE_ERSPAN_DIR]) |
| erspan_dir = rta_getattr_u8(greinfo[IFLA_GRE_ERSPAN_DIR]); |
| |
| if (greinfo[IFLA_GRE_ERSPAN_HWID]) |
| erspan_hwid = rta_getattr_u16(greinfo[IFLA_GRE_ERSPAN_HWID]); |
| |
| free(answer); |
| } |
| |
| while (argc > 0) { |
| if (!matches(*argv, "key")) { |
| NEXT_ARG(); |
| 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, "nopmtudisc")) { |
| pmtudisc = 0; |
| } else if (!matches(*argv, "pmtudisc")) { |
| pmtudisc = 1; |
| } else if (!matches(*argv, "remote")) { |
| NEXT_ARG(); |
| get_addr(&daddr, *argv, AF_INET); |
| } else if (!matches(*argv, "local")) { |
| NEXT_ARG(); |
| get_addr(&saddr, *argv, AF_INET); |
| } else if (!matches(*argv, "dev")) { |
| NEXT_ARG(); |
| link = ll_name_to_index(*argv); |
| if (!link) |
| exit(nodev(*argv)); |
| } else if (!matches(*argv, "ttl") || |
| !matches(*argv, "hoplimit") || |
| !matches(*argv, "hlim")) { |
| NEXT_ARG(); |
| if (strcmp(*argv, "inherit") != 0) { |
| if (get_u8(&ttl, *argv, 0)) |
| invarg("invalid TTL\n", *argv); |
| } else |
| ttl = 0; |
| } else if (!matches(*argv, "tos") || |
| !matches(*argv, "tclass") || |
| !matches(*argv, "dsfield")) { |
| __u32 uval; |
| |
| NEXT_ARG(); |
| if (strcmp(*argv, "inherit") != 0) { |
| if (rtnl_dsfield_a2n(&uval, *argv)) |
| invarg("bad TOS value", *argv); |
| tos = uval; |
| } else |
| tos = 1; |
| } 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 if (strcmp(*argv, "ignore-df") == 0) { |
| ignore_df = 1; |
| } else if (strcmp(*argv, "noignore-df") == 0) { |
| /* |
| *only the lsb is significant, use 2 for presence |
| */ |
| ignore_df = 2; |
| } else if (strcmp(*argv, "fwmark") == 0) { |
| NEXT_ARG(); |
| if (get_u32(&fwmark, *argv, 0)) |
| invarg("invalid fwmark\n", *argv); |
| } else if (is_erspan && strcmp(*argv, "erspan") == 0) { |
| NEXT_ARG(); |
| if (get_u32(&erspan_idx, *argv, 0)) |
| invarg("invalid erspan index\n", *argv); |
| if (erspan_idx & ~((1<<20) - 1) || erspan_idx == 0) |
| invarg("erspan index must be > 0 and <= 20-bit\n", *argv); |
| } else if (is_erspan && strcmp(*argv, "erspan_ver") == 0) { |
| NEXT_ARG(); |
| if (get_u8(&erspan_ver, *argv, 0)) |
| invarg("invalid erspan version\n", *argv); |
| if (erspan_ver > 2) |
| invarg("erspan version must be 0/1/2\n", *argv); |
| } else if (is_erspan && strcmp(*argv, "erspan_dir") == 0) { |
| NEXT_ARG(); |
| if (matches(*argv, "ingress") == 0) |
| erspan_dir = 0; |
| else if (matches(*argv, "egress") == 0) |
| erspan_dir = 1; |
| else |
| invarg("Invalid erspan direction.", *argv); |
| } else if (is_erspan && strcmp(*argv, "erspan_hwid") == 0) { |
| NEXT_ARG(); |
| if (get_u16(&erspan_hwid, *argv, 0)) |
| invarg("invalid erspan hwid\n", *argv); |
| } else { |
| gre_print_help(lu, argc, argv, stderr); |
| return -1; |
| } |
| argc--; argv++; |
| } |
| |
| if (is_addrtype_inet_multi(&daddr)) { |
| if (!ikey) { |
| ikey = daddr.data[0]; |
| iflags |= GRE_KEY; |
| } |
| if (!okey) { |
| okey = daddr.data[0]; |
| oflags |= GRE_KEY; |
| } |
| if (!is_addrtype_inet_not_unspec(&saddr)) { |
| fprintf(stderr, |
| "A broadcast tunnel requires a source address.\n"); |
| return -1; |
| } |
| } |
| |
| 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); |
| addattr_l(n, 1024, IFLA_GRE_PMTUDISC, &pmtudisc, 1); |
| if (ignore_df) |
| addattr8(n, 1024, IFLA_GRE_IGNORE_DF, ignore_df & 1); |
| addattr_l(n, 1024, IFLA_GRE_TOS, &tos, 1); |
| if (link) |
| addattr32(n, 1024, IFLA_GRE_LINK, link); |
| addattr_l(n, 1024, IFLA_GRE_TTL, &ttl, 1); |
| addattr32(n, 1024, IFLA_GRE_FWMARK, fwmark); |
| if (is_erspan) { |
| 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]; |
| __u16 iflags = 0; |
| __u16 oflags = 0; |
| __u8 ttl = 0; |
| __u8 tos = 0; |
| |
| if (!tb) |
| return; |
| |
| if (tb[IFLA_GRE_COLLECT_METADATA]) { |
| print_bool(PRINT_ANY, "external", "external ", true); |
| return; |
| } |
| |
| tnl_print_endpoint("remote", tb[IFLA_GRE_REMOTE], AF_INET); |
| tnl_print_endpoint("local", tb[IFLA_GRE_LOCAL], AF_INET); |
| |
| if (tb[IFLA_GRE_LINK]) { |
| __u32 link = rta_getattr_u32(tb[IFLA_GRE_LINK]); |
| |
| if (link) { |
| print_string(PRINT_ANY, "link", "dev %s ", |
| ll_index_to_name(link)); |
| } |
| } |
| |
| if (tb[IFLA_GRE_TTL]) |
| ttl = rta_getattr_u8(tb[IFLA_GRE_TTL]); |
| if (is_json_context() || ttl) |
| print_uint(PRINT_ANY, "ttl", "ttl %u ", ttl); |
| else |
| print_string(PRINT_FP, NULL, "ttl %s ", "inherit"); |
| |
| if (tb[IFLA_GRE_TOS]) |
| tos = rta_getattr_u8(tb[IFLA_GRE_TOS]); |
| if (tos) { |
| if (is_json_context() || tos != 1) |
| print_0xhex(PRINT_ANY, "tos", "tos %#llx ", tos); |
| else |
| print_string(PRINT_FP, NULL, "tos %s ", "inherit"); |
| } |
| |
| if (tb[IFLA_GRE_PMTUDISC]) { |
| if (!rta_getattr_u8(tb[IFLA_GRE_PMTUDISC])) |
| print_bool(PRINT_ANY, "pmtudisc", "nopmtudisc ", false); |
| else |
| print_bool(PRINT_JSON, "pmtudisc", NULL, true); |
| } |
| |
| if (tb[IFLA_GRE_IGNORE_DF] && rta_getattr_u8(tb[IFLA_GRE_IGNORE_DF])) |
| print_bool(PRINT_ANY, "ignore_df", "ignore-df ", true); |
| |
| if (tb[IFLA_GRE_IFLAGS]) |
| iflags = rta_getattr_u16(tb[IFLA_GRE_IFLAGS]); |
| |
| if (tb[IFLA_GRE_OFLAGS]) |
| oflags = rta_getattr_u16(tb[IFLA_GRE_OFLAGS]); |
| |
| if ((iflags & GRE_KEY) && tb[IFLA_GRE_IKEY]) { |
| inet_ntop(AF_INET, RTA_DATA(tb[IFLA_GRE_IKEY]), s2, sizeof(s2)); |
| print_string(PRINT_ANY, "ikey", "ikey %s ", s2); |
| } |
| |
| if ((oflags & GRE_KEY) && tb[IFLA_GRE_OKEY]) { |
| inet_ntop(AF_INET, RTA_DATA(tb[IFLA_GRE_OKEY]), s2, sizeof(s2)); |
| print_string(PRINT_ANY, "okey", "okey %s ", s2); |
| } |
| |
| if (iflags & GRE_SEQ) |
| print_bool(PRINT_ANY, "iseq", "iseq ", true); |
| if (oflags & GRE_SEQ) |
| print_bool(PRINT_ANY, "oseq", "oseq ", true); |
| if (iflags & GRE_CSUM) |
| print_bool(PRINT_ANY, "icsum", "icsum ", true); |
| if (oflags & GRE_CSUM) |
| print_bool(PRINT_ANY, "ocsum", "ocsum ", true); |
| |
| if (tb[IFLA_GRE_FWMARK]) { |
| __u32 fwmark = rta_getattr_u32(tb[IFLA_GRE_FWMARK]); |
| |
| if (fwmark) { |
| print_0xhex(PRINT_ANY, |
| "fwmark", "fwmark %#llx ", 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); |
| } |
| |
| 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); |
| } |
| |
| if (tb[IFLA_GRE_ERSPAN_DIR]) { |
| __u8 erspan_dir = rta_getattr_u8(tb[IFLA_GRE_ERSPAN_DIR]); |
| |
| if (erspan_dir == 0) |
| print_string(PRINT_ANY, "erspan_dir", |
| "erspan_dir ingress ", NULL); |
| else |
| print_string(PRINT_ANY, "erspan_dir", |
| "erspan_dir egress ", NULL); |
| } |
| |
| if (tb[IFLA_GRE_ERSPAN_HWID]) { |
| __u16 erspan_hwid = rta_getattr_u16(tb[IFLA_GRE_ERSPAN_HWID]); |
| |
| print_0xhex(PRINT_ANY, |
| "erspan_hwid", "erspan_hwid %#llx ", erspan_hwid); |
| } |
| |
| tnl_print_encap(tb, |
| IFLA_GRE_ENCAP_TYPE, |
| IFLA_GRE_ENCAP_FLAGS, |
| IFLA_GRE_ENCAP_SPORT, |
| IFLA_GRE_ENCAP_DPORT); |
| } |
| |
| struct link_util gre_link_util = { |
| .id = "gre", |
| .maxattr = IFLA_GRE_MAX, |
| .parse_opt = gre_parse_opt, |
| .print_opt = gre_print_opt, |
| .print_help = gre_print_help, |
| }; |
| |
| struct link_util gretap_link_util = { |
| .id = "gretap", |
| .maxattr = IFLA_GRE_MAX, |
| .parse_opt = gre_parse_opt, |
| .print_opt = gre_print_opt, |
| .print_help = gre_print_help, |
| }; |
| |
| struct link_util erspan_link_util = { |
| .id = "erspan", |
| .maxattr = IFLA_GRE_MAX, |
| .parse_opt = gre_parse_opt, |
| .print_opt = gre_print_opt, |
| .print_help = gre_print_help, |
| }; |