diff options
Diffstat (limited to 'net/netfilter/nf_conntrack_sip.c')
| -rw-r--r-- | net/netfilter/nf_conntrack_sip.c | 27 |
1 files changed, 22 insertions, 5 deletions
diff --git a/net/netfilter/nf_conntrack_sip.c b/net/netfilter/nf_conntrack_sip.c index a74d76a..f20fa2d 100644 --- a/net/netfilter/nf_conntrack_sip.c +++ b/net/netfilter/nf_conntrack_sip.c @@ -151,10 +151,12 @@ static int skp_epaddr_len(const struct nf_conn *ct, const char *dptr, */ int ct_sip_parse_request(const struct nf_conn *ct, const char *dptr, unsigned int datalen, - unsigned int *matchoff, unsigned int *matchlen) + unsigned int *matchoff, unsigned int *matchlen, + union nf_inet_addr *addr, __be16 *port) { - const char *start = dptr, *limit = dptr + datalen; + const char *start = dptr, *limit = dptr + datalen, *end; unsigned int mlen; + unsigned int p; int shift = 0; /* Skip method and following whitespace */ @@ -173,10 +175,25 @@ int ct_sip_parse_request(const struct nf_conn *ct, if (strnicmp(dptr, "sip:", strlen("sip:")) == 0) break; } - *matchlen = skp_epaddr_len(ct, dptr, limit, &shift); - if (!*matchlen) + if (!skp_epaddr_len(ct, dptr, limit, &shift)) return 0; - *matchoff = dptr - start + shift; + dptr += shift; + + if (!parse_addr(ct, dptr, &end, addr, limit)) + return -1; + if (end < limit && *end == ':') { + end++; + p = simple_strtoul(end, (char **)&end, 10); + if (p < 1024 || p > 65535) + return -1; + *port = htons(p); + } else + *port = htons(SIP_PORT); + + if (end == dptr) + return 0; + *matchoff = dptr - start; + *matchlen = end - dptr; return 1; } EXPORT_SYMBOL_GPL(ct_sip_parse_request); |