diff options
Diffstat (limited to 'tap.c')
| -rw-r--r-- | tap.c | 8 |
1 files changed, 4 insertions, 4 deletions
@@ -131,7 +131,7 @@ void tap_ip_send(struct ctx *c, struct in6_addr *src, uint8_t proto, memcpy(&iph->saddr, &src->s6_addr[12], 4); iph->check = 0; - iph->check = csum_unaligned(iph, iph->ihl * 4, 0); + iph->check = csum_unaligned(iph, (size_t)iph->ihl * 4, 0); memcpy(data, in, len); @@ -337,9 +337,9 @@ resume: continue; iph = (struct iphdr *)(eh + 1); - if ((iph->ihl * 4) + sizeof(*eh) > len) + if ((size_t)iph->ihl * 4 + sizeof(*eh) > len) continue; - if (iph->ihl * 4 < (int)sizeof(*iph)) + if ((size_t)iph->ihl * 4 < (int)sizeof(*iph)) continue; if (iph->saddr && c->addr4_seen != iph->saddr) { @@ -347,7 +347,7 @@ resume: proto_update_l2_buf(NULL, NULL, &c->addr4_seen); } - l4h = (char *)iph + iph->ihl * 4; + l4h = (char *)iph + (size_t)iph->ihl * 4; l4_len = len - ((intptr_t)l4h - (intptr_t)eh); if (iph->protocol == IPPROTO_ICMP) { |