diff --git a/ip/link_gre.c b/ip/link_gre.c index 83653d00..47b64cb8 100644 --- a/ip/link_gre.c +++ b/ip/link_gre.c @@ -29,6 +29,9 @@ static void print_usage(FILE *f) fprintf(f, " type { gre | gretap } [ remote ADDR ] [ local ADDR ]\n"); fprintf(f, " [ [i|o]seq ] [ [i|o]key KEY ] [ [i|o]csum ]\n"); fprintf(f, " [ ttl TTL ] [ tos TOS ] [ [no]pmtudisc ] [ dev PHYS_DEV ]\n"); + fprintf(f, " [ noencap ] [ encap { fou | gue | none } ]\n"); + fprintf(f, " [ encap-sport PORT ] [ encap-dport PORT ]\n"); + fprintf(f, " [ [no]encap-csum ] [ [no]encap-csum6 ]\n"); fprintf(f, "\n"); fprintf(f, "Where: NAME := STRING\n"); fprintf(f, " ADDR := { IP_ADDRESS | any }\n"); @@ -67,6 +70,10 @@ static int gre_parse_opt(struct link_util *lu, int argc, char **argv, __u8 ttl = 0; __u8 tos = 0; int len; + __u16 encaptype = 0; + __u16 encapflags = 0; + __u16 encapsport = 0; + __u16 encapdport = 0; if (!(n->nlmsg_flags & NLM_F_CREATE)) { memset(&req, 0, sizeof(req)); @@ -132,6 +139,15 @@ get_failed: if (greinfo[IFLA_GRE_LINK]) link = rta_getattr_u8(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]); } while (argc > 0) { @@ -241,6 +257,36 @@ get_failed: 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 usage(); argc--; argv++; @@ -271,6 +317,11 @@ get_failed: addattr_l(n, 1024, IFLA_GRE_TTL, &ttl, 1); addattr_l(n, 1024, IFLA_GRE_TOS, &tos, 1); + 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; } @@ -357,6 +408,44 @@ static void gre_print_opt(struct link_util *lu, FILE *f, struct rtattr *tb[]) fputs("icsum ", f); if (oflags & GRE_CSUM) fputs("ocsum ", f); + + if (tb[IFLA_GRE_ENCAP_TYPE] && + *(__u16 *)RTA_DATA(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]); + + fputs("encap ", f); + switch (type) { + case TUNNEL_ENCAP_FOU: + fputs("fou ", f); + break; + case TUNNEL_ENCAP_GUE: + fputs("gue ", f); + break; + default: + fputs("unknown ", f); + break; + } + + if (sport == 0) + fputs("encap-sport auto ", f); + else + fprintf(f, "encap-sport %u", ntohs(sport)); + + fprintf(f, "encap-dport %u ", ntohs(dport)); + + if (flags & TUNNEL_ENCAP_FLAG_CSUM) + fputs("encap-csum ", f); + else + fputs("noencap-csum ", f); + + if (flags & TUNNEL_ENCAP_FLAG_CSUM6) + fputs("encap-csum6 ", f); + else + fputs("noencap-csum6 ", f); + } } static void gre_print_help(struct link_util *lu, int argc, char **argv,