commit c9f4c89da6c76ebc59a0ec1047853a13ce5f5d96
author Lorenzo Colitti <lorenzo@google.com> Mon Nov 18 12:59:44 2013 +0900
committer Lorenzo Colitti <lorenzo@google.com> Mon Nov 25 18:45:45 2013 +0900
tree 9110629c337588c00c67a64b05fa498bd37423bc
parent 9fe1673c316988d0fb8dd85e9d86642e0ac6d1b4

Add generic IP packet code and use it for GRE.

Bug: 11542311
Change-Id: I174e0b268869bc77927feeee57003580c47c30f2

ipv4.c

diff --git a/ipv4.c b/ipv4.c
index 47f2422..b5cbf80 100644
--- a/ipv4.c
+++ b/ipv4.c
@@ -123,12 +123,14 @@
   // Calculate the pseudo-header checksum.
   checksum = ipv6_pseudo_header_checksum(0, ip6_targ, len_left);
 
-  if(nxthdr == IPPROTO_ICMPV6) {
+  if (nxthdr == IPPROTO_ICMPV6) {
     iov_len = icmp_packet(out, pos + 1, (const struct icmphdr *) next_header, checksum, len_left);
-  } else if(nxthdr == IPPROTO_TCP) {
+  } else if (nxthdr == IPPROTO_TCP) {
     iov_len = tcp_packet(out, pos + 1, (const struct tcphdr *) next_header, checksum, len_left);
-  } else if(nxthdr == IPPROTO_UDP) {
+  } else if (nxthdr == IPPROTO_UDP) {
     iov_len = udp_packet(out, pos + 1, (const struct udphdr *) next_header, checksum, len_left);
+  } else if (nxthdr == IPPROTO_GRE) {
+    iov_len = generic_packet(out, pos + 1, next_header, len_left);
   } else {
 #if CLAT_DEBUG
     logmsg_dbg(ANDROID_LOG_ERROR, "ip_packet/unknown protocol: %x",header->protocol);