Module: kamailio Branch: master Commit: f429e753dfa750a604bfb0acb5068b47d0fbe142 URL: https://github.com/kamailio/kamailio/commit/f429e753dfa750a604bfb0acb5068b47...

Author: Daniel-Constantin Mierla miconda@gmail.com Committer: Daniel-Constantin Mierla miconda@gmail.com Date: 2015-07-07T11:16:17+02:00

core: fix matching network addresses with bitmask non divisible to 8

- reported by Kyle Kurz kkurz@digium.com for permissions module

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Modified: ip_addr.c

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Diff: https://github.com/kamailio/kamailio/commit/f429e753dfa750a604bfb0acb5068b47... Patch: https://github.com/kamailio/kamailio/commit/f429e753dfa750a604bfb0acb5068b47...

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diff --git a/ip_addr.c b/ip_addr.c index 8504740..3412af9 100644 --- a/ip_addr.c +++ b/ip_addr.c @@ -377,7 +377,8 @@ char* get_proto_name(unsigned int proto) int ip_addr_match_net(ip_addr_t *iaddr, ip_addr_t *naddr, int mask) { - unsigned char c; + unsigned char ci; + unsigned char cn; int i; int mbytes; int mbits; @@ -420,8 +421,9 @@ int ip_addr_match_net(ip_addr_t *iaddr, ip_addr_t *naddr, mbits = mask % 8; if(mbits==0) return 0; - c = naddr->u.addr[i] & (~((1 << (8 - mbits)) - 1)); - if((iaddr->u.addr[i] & c) == c) + ci = iaddr->u.addr[i] & (~((1 << (8 - mbits)) - 1)); + cn = naddr->u.addr[i] & (~((1 << (8 - mbits)) - 1)); + if(ci == cn) return 0; return -1; }