diff options
| author | /C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org </C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org> | 2007-05-24 11:32:53 +0000 |
|---|---|---|
| committer | /C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org </C=EU/ST=EU/CN=Pablo Neira Ayuso/emailAddress=pablo@netfilter.org> | 2007-05-24 11:32:53 +0000 |
| commit | bc91f60fc288fe1fd0729f7bafe0596837c3e675 (patch) | |
| tree | 5e36e8e4c64295ab5d9a30e8625358f2c6a876d7 /src/checksum.c | |
| parent | eaae45fa65fdb559b5442dfe2da05a808c5c57ba (diff) | |
simplify checksum code: use UDP/multicast checksum facilities
Diffstat (limited to 'src/checksum.c')
| -rw-r--r-- | src/checksum.c | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/src/checksum.c b/src/checksum.c deleted file mode 100644 index 41866ff..0000000 --- a/src/checksum.c +++ /dev/null @@ -1,32 +0,0 @@ -/* - * Extracted from RFC 1071 with some minor changes to fix compilation on GCC, - * this can probably be improved - * --pablo 11/feb/07 - */ - -#include <conntrackd.h> - -unsigned short do_csum(const void *addr, unsigned int count) -{ - unsigned int sum = 0; - - /* checksumming disabled, just skip */ - if (CONFIG(flags) & DONT_CHECKSUM) - return 0; - - while(count > 1) { - /* This is the inner loop */ - sum += *((unsigned short *) addr++); - count -= 2; - } - - /* Add left-over byte, if any */ - if(count > 0) - sum += *((unsigned char *) addr); - - /* Fold 32-bit sum to 16 bits */ - while (sum>>16) - sum = (sum & 0xffff) + (sum >> 16); - - return ~sum; -} |