diff options
| author | Nicolas Cavallari <nicolas.cavallari@green-communications.fr> | 2023-09-20 17:03:34 +0200 |
|---|---|---|
| committer | Florian Westphal <fw@strlen.de> | 2023-10-06 11:22:20 +0200 |
| commit | 2e86f45d0260a0dab8fed974853d84d9923bbc55 (patch) | |
| tree | dc38fd171b9261f4155da20512b3054be80e2c7a /src/proto.c | |
| parent | 8b9ae77598b4d074cfa6dc263e6064d9bd5610d4 (diff) | |
icmpv6: Allow matching target address in NS/NA, redirect and MLD
It was currently not possible to match the target address of a neighbor
solicitation or neighbor advertisement against a dynamic set, unlike in
IPv4.
Since they are many ICMPv6 messages with an address at the same offset,
allow filtering on the target address for all icmp types that have one.
While at it, also allow matching the destination address of an ICMPv6
redirect.
Signed-off-by: Nicolas Cavallari <nicolas.cavallari@green-communications.fr>
Signed-off-by: Florian Westphal <fw@strlen.de>
Diffstat (limited to 'src/proto.c')
| -rw-r--r-- | src/proto.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/src/proto.c b/src/proto.c index dd84f7c1..553b6a44 100644 --- a/src/proto.c +++ b/src/proto.c @@ -438,10 +438,10 @@ const struct datatype icmp_type_type = { .sym_tbl = &icmp_type_tbl, }; -#define ICMP46HDR_FIELD(__token, __struct, __member, __dep) \ +#define ICMP46HDR_FIELD(__token, __dtype, __struct, __member, __dep) \ { \ .token = (__token), \ - .dtype = &integer_type, \ + .dtype = &__dtype, \ .byteorder = BYTEORDER_BIG_ENDIAN, \ .offset = offsetof(__struct, __member) * 8, \ .len = field_sizeof(__struct, __member) * 8, \ @@ -449,7 +449,7 @@ const struct datatype icmp_type_type = { } #define ICMPHDR_FIELD(__token, __member, __dep) \ - ICMP46HDR_FIELD(__token, struct icmphdr, __member, __dep) + ICMP46HDR_FIELD(__token, integer_type, struct icmphdr, __member, __dep) #define ICMPHDR_TYPE(__name, __type, __member) \ HDR_TYPE(__name, __type, struct icmphdr, __member) @@ -913,7 +913,7 @@ const struct datatype icmp6_type_type = { }; #define ICMP6HDR_FIELD(__token, __member, __dep) \ - ICMP46HDR_FIELD(__token, struct icmp6_hdr, __member, __dep) + ICMP46HDR_FIELD(__token, integer_type, struct icmp6_hdr, __member, __dep) #define ICMP6HDR_TYPE(__name, __type, __member) \ HDR_TYPE(__name, __type, struct icmp6_hdr, __member) @@ -933,6 +933,12 @@ const struct proto_desc proto_icmp6 = { [ICMP6HDR_ID] = ICMP6HDR_FIELD("id", icmp6_id, PROTO_ICMP6_ECHO), [ICMP6HDR_SEQ] = ICMP6HDR_FIELD("sequence", icmp6_seq, PROTO_ICMP6_ECHO), [ICMP6HDR_MAXDELAY] = ICMP6HDR_FIELD("max-delay", icmp6_maxdelay, PROTO_ICMP6_MGMQ), + [ICMP6HDR_TADDR] = ICMP46HDR_FIELD("taddr", ip6addr_type, + struct nd_neighbor_solicit, nd_ns_target, + PROTO_ICMP6_ADDRESS), + [ICMP6HDR_DADDR] = ICMP46HDR_FIELD("daddr", ip6addr_type, + struct nd_redirect, nd_rd_dst, + PROTO_ICMP6_REDIRECT), }, }; |