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Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options

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This commit is contained in:
goldsimon 2010-07-10 12:02:28 +00:00
parent 9f457d3331
commit 714a43b18c
2 changed files with 13 additions and 2 deletions
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3
CHANGELOG
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@ -225,6 +225,9 @@ HISTORY
++ Bugfixes:
2010-07-10: Simon Goldschmidt
* ip.c: Fixed bug #30402: CHECKSUM_GEN_IP_INLINE does not add IP options
2010-06-30: Simon Goldschmidt
* api_msg.c: fixed bug #30300 (shutdown parameter was not initialized in
netconn_delete)

12
src/core/ipv4/ip.c
View File

@ -591,7 +591,7 @@ err_t ip_output_if_opt(struct pbuf *p, ip_addr_t *src, ip_addr_t *dest,
struct ip_hdr *iphdr;
ip_addr_t dest_addr;
#if CHECKSUM_GEN_IP_INLINE
u32_t chk_sum;
u32_t chk_sum = 0;
#endif /* CHECKSUM_GEN_IP_INLINE */
/* pbufs passed to IP must have a ref-count of 1 as their payload pointer
@ -606,6 +606,9 @@ err_t ip_output_if_opt(struct pbuf *p, ip_addr_t *src, ip_addr_t *dest,
#if IP_OPTIONS_SEND
u16_t optlen_aligned = 0;
if (optlen != 0) {
#if CHECKSUM_GEN_IP_INLINE
int i;
#endif /* CHECKSUM_GEN_IP_INLINE */
/* round up to a multiple of 4 */
optlen_aligned = ((optlen + 3) & ~3);
ip_hlen += optlen_aligned;
@ -621,6 +624,11 @@ err_t ip_output_if_opt(struct pbuf *p, ip_addr_t *src, ip_addr_t *dest,
/* zero the remaining bytes */
memset(((char*)p->payload) + optlen, 0, optlen_aligned - optlen);
}
#if CHECKSUM_GEN_IP_INLINE
for (i = 0; i < optlen_aligned; i += sizeof(u16_t)) {
chk_sum += ((u16_t*)p->payload)[i];
}
#endif /* CHECKSUM_GEN_IP_INLINE */
}
#endif /* IP_OPTIONS_SEND */
/* generate IP header */
@ -639,7 +647,7 @@ err_t ip_output_if_opt(struct pbuf *p, ip_addr_t *src, ip_addr_t *dest,
IPH_TTL_SET(iphdr, ttl);
IPH_PROTO_SET(iphdr, proto);
#if CHECKSUM_GEN_IP_INLINE
chk_sum = LWIP_MAKE_U16(proto, ttl);
chk_sum += LWIP_MAKE_U16(proto, ttl);
#endif /* CHECKSUM_GEN_IP_INLINE */
/* dest cannot be NULL here */