Both sit and ipip "mode" parameter handling nearly the same. Except for sit we have "ip6ip" mode: check it only when configuring sit.
Note that there is no need strcmp(lu->id, "ipip"): if it is not sit it is "ipip" because we have only these two link util defined in module. Signed-off-by: Serhey Popovych <serhe.popov...@gmail.com> --- ip/link_iptnl.c | 27 +++++---------------------- 1 file changed, 5 insertions(+), 22 deletions(-) diff --git a/ip/link_iptnl.c b/ip/link_iptnl.c index 8a8f5dd..d4d935b 100644 --- a/ip/link_iptnl.c +++ b/ip/link_iptnl.c @@ -230,11 +230,11 @@ get_failed: } else if (strcmp(lu->id, "sit") == 0 && strcmp(*argv, "isatap") == 0) { iflags |= SIT_ISATAP; - } else if (strcmp(lu->id, "sit") == 0 && - strcmp(*argv, "mode") == 0) { + } else if (strcmp(*argv, "mode") == 0) { NEXT_ARG(); - if (strcmp(*argv, "ipv6/ipv4") == 0 || - strcmp(*argv, "ip6ip") == 0) + if (strcmp(lu->id, "sit") == 0 && + (strcmp(*argv, "ipv6/ipv4") == 0 || + strcmp(*argv, "ip6ip") == 0)) proto = IPPROTO_IPV6; else if (strcmp(*argv, "ipv4/ipv4") == 0 || strcmp(*argv, "ipip") == 0 || @@ -248,21 +248,6 @@ get_failed: proto = 0; else invarg("Cannot guess tunnel mode.", *argv); - } else if (strcmp(lu->id, "ipip") == 0 && - strcmp(*argv, "mode") == 0) { - NEXT_ARG(); - if (strcmp(*argv, "ipv4/ipv4") == 0 || - strcmp(*argv, "ipip") == 0 || - strcmp(*argv, "ip4ip4") == 0) - proto = IPPROTO_IPIP; - else if (strcmp(*argv, "mpls/ipv4") == 0 || - strcmp(*argv, "mplsip") == 0) - proto = IPPROTO_MPLS; - else if (strcmp(*argv, "any/ipv4") == 0 || - strcmp(*argv, "any") == 0) - proto = 0; - else - invarg("Cannot guess tunnel mode.", *argv); } else if (strcmp(*argv, "noencap") == 0) { encaptype = TUNNEL_ENCAP_NONE; } else if (strcmp(*argv, "encap") == 0) { @@ -337,6 +322,7 @@ get_failed: exit(-1); } + addattr8(n, 1024, IFLA_IPTUN_PROTO, proto); if (metadata) { addattr_l(n, 1024, IFLA_IPTUN_COLLECT_METADATA, NULL, 0); return 0; @@ -355,9 +341,6 @@ get_failed: addattr16(n, 1024, IFLA_IPTUN_ENCAP_SPORT, htons(encapsport)); addattr16(n, 1024, IFLA_IPTUN_ENCAP_DPORT, htons(encapdport)); - if (strcmp(lu->id, "ipip") == 0 || strcmp(lu->id, "sit") == 0) - addattr8(n, 1024, IFLA_IPTUN_PROTO, proto); - if (strcmp(lu->id, "sit") == 0) { addattr16(n, 1024, IFLA_IPTUN_FLAGS, iflags); if (ip6rdprefixlen) { -- 1.7.10.4