Lines Matching refs:ip_hdr
77 typedef bool (*ecm_tracker_ip_header_helper_method_t)(struct ecm_tracker_ip_protocols *etip, struct ecm_tracker_ip_protocol_header *etiph, struct ecm_tracker_ip_header *ip_hdr, struct sk_buff *skb, uint8_t protocol, ecm_tracker_ip_protocol_type_t ecm_ip_protocol, uint32_t offset, uint32_t remain, int16_t *next_hdr);
83 static bool ecm_tracker_ip_header_helper_tcp(struct ecm_tracker_ip_protocols *etip, struct ecm_tracker_ip_protocol_header *etiph, struct ecm_tracker_ip_header *ip_hdr, struct sk_buff *skb, uint8_t protocol, ecm_tracker_ip_protocol_type_t ecm_ip_protocol, uint32_t offset, uint32_t remain, int16_t *next_hdr);
84 static bool ecm_tracker_ip_header_helper_udp(struct ecm_tracker_ip_protocols *etip, struct ecm_tracker_ip_protocol_header *etiph, struct ecm_tracker_ip_header *ip_hdr, struct sk_buff *skb, uint8_t protocol, ecm_tracker_ip_protocol_type_t ecm_ip_protocol, uint32_t offset, uint32_t remain, int16_t *next_hdr);
85 static bool ecm_tracker_ip_header_helper_icmp(struct ecm_tracker_ip_protocols *etip, struct ecm_tracker_ip_protocol_header *etiph, struct ecm_tracker_ip_header *ip_hdr, struct sk_buff *skb, uint8_t protocol, ecm_tracker_ip_protocol_type_t ecm_ip_protocol, uint32_t offset, uint32_t remain, int16_t *next_hdr);
86 static bool ecm_tracker_ip_header_helper_unknown(struct ecm_tracker_ip_protocols *etip, struct ecm_tracker_ip_protocol_header *etiph, struct ecm_tracker_ip_header *ip_hdr, struct sk_buff *skb, uint8_t protocol, ecm_tracker_ip_protocol_type_t ecm_ip_protocol, uint32_t offset, uint32_t remain, int16_t *next_hdr);
87 static bool ecm_tracker_ip_header_helper_gre(struct ecm_tracker_ip_protocols *etip, struct ecm_tracker_ip_protocol_header *etiph, struct ecm_tracker_ip_header *ip_hdr, struct sk_buff *skb, uint8_t protocol, ecm_tracker_ip_protocol_type_t ecm_ip_protocol, uint32_t offset, uint32_t remain, int16_t *next_hdr);
89 static bool ecm_tracker_ip_header_helper_ipv6_generic(struct ecm_tracker_ip_protocols *etip, struct ecm_tracker_ip_protocol_header *etiph, struct ecm_tracker_ip_header *ip_hdr, struct sk_buff *skb, uint8_t protocol, ecm_tracker_ip_protocol_type_t ecm_ip_protocol, uint32_t offset, uint32_t remain, int16_t *next_hdr);
90 static bool ecm_tracker_ip_header_helper_ipv6_fragment(struct ecm_tracker_ip_protocols *etip, struct ecm_tracker_ip_protocol_header *etiph, struct ecm_tracker_ip_header *ip_hdr, struct sk_buff *skb, uint8_t protocol, ecm_tracker_ip_protocol_type_t ecm_ip_protocol, uint32_t offset, uint32_t remain, int16_t *next_hdr);
91 static bool ecm_tracker_ip_header_helper_ah(struct ecm_tracker_ip_protocols *etip, struct ecm_tracker_ip_protocol_header *etiph, struct ecm_tracker_ip_header *ip_hdr, struct sk_buff *skb, uint8_t protocol, ecm_tracker_ip_protocol_type_t ecm_ip_protocol, uint32_t offset, uint32_t remain, int16_t *next_hdr);
92 static bool ecm_tracker_ip_header_helper_ipv6_icmp(struct ecm_tracker_ip_protocols *etip, struct ecm_tracker_ip_protocol_header *etiph, struct ecm_tracker_ip_header *ip_hdr, struct sk_buff *skb, uint8_t protocol, ecm_tracker_ip_protocol_type_t ecm_ip_protocol, uint32_t offset, uint32_t remain, int16_t *next_hdr);
408 bool ecm_tracker_ip_check_header_and_read(struct ecm_tracker_ip_header *ip_hdr, struct sk_buff *skb)
419 memset(ip_hdr, 0, sizeof(*ip_hdr));
421 ip_hdr->skb = skb;
426 v4_hdr = skb_header_pointer(skb, 0, sizeof(struct iphdr), &ip_hdr->h.v4_hdr);
428 DEBUG_TRACE("%p: skb: %p is ipv4\n", ip_hdr, skb);
429 ip_hdr->is_v4 = true;
438 v6_hdr = skb_header_pointer(skb, 0, sizeof(struct ipv6hdr), &ip_hdr->h.v6_hdr);
443 DEBUG_TRACE("%p: skb: %p is ipv6\n", ip_hdr, skb);
444 ip_hdr->is_v4 = false;
451 if (ip_hdr->is_v4) {
458 DEBUG_TRACE("%p: skb: %p ipv4\n", ip_hdr, skb);
463 ECM_NIN4_ADDR_TO_IP_ADDR(ip_hdr->src_addr, v4_hdr->saddr);
464 ECM_NIN4_ADDR_TO_IP_ADDR(ip_hdr->dest_addr, v4_hdr->daddr);
465 ip_hdr->ip_header_length = v4_hdr->ihl;
466 ip_hdr->ip_header_length <<= 2;
467 if (ip_hdr->ip_header_length < 20) {
468 DEBUG_WARN("%p: v4 invalid ip hdr len %d\n", skb, ip_hdr->ip_header_length);
471 ip_hdr->total_length = ntohs(v4_hdr->tot_len);
472 if (skb->len < ip_hdr->total_length) {
473 DEBUG_WARN("%p: v4 invalid total len: %u skb len: %u\n", skb, ip_hdr->total_length, skb->len);
476 remain = ip_hdr->total_length - ip_hdr->ip_header_length;
481 ip_hdr->fragmented = (ntohs(v4_hdr->frag_off) & 0x3fff)? true : false;
486 ip_hdr->ds = ipv4_get_dsfield(v4_hdr);
491 ip_hdr->ttl = v4_hdr->ttl;
497 ip_hdr->protocol = (int)v4_hdr->protocol;
500 etiph = &ip_hdr->headers[ecm_ip_protocol]; /* Get where the header detail is stored in ip_hdr->headers[] */
504 ip_hdr,
507 ip_hdr->ip_header_length,
508 ip_hdr->total_length,
510 ip_hdr->fragmented,
511 ip_hdr->protocol,
513 ECM_IP_ADDR_TO_DOT(ip_hdr->src_addr),
514 ECM_IP_ADDR_TO_DOT(ip_hdr->dest_addr));
523 ip_hdr,
525 (uint8_t)ip_hdr->protocol,
527 ip_hdr->ip_header_length,
543 ECM_NIN6_ADDR_TO_IP_ADDR(ip_hdr->src_addr, v6_hdr->saddr);
544 ECM_NIN6_ADDR_TO_IP_ADDR(ip_hdr->dest_addr, v6_hdr->daddr);
545 ip_hdr->ip_header_length = 40;
547 ip_hdr->total_length = remain + 40;
548 if (skb->len < ip_hdr->total_length) {
549 DEBUG_WARN("%p: v6 invalid total len: %u skb len: %u\n", skb, ip_hdr->total_length, skb->len);
556 ip_hdr->ds = ipv6_get_dsfield(v6_hdr);
561 ip_hdr->ttl = v6_hdr->hop_limit;
577 etiph = &ip_hdr->headers[ecm_ip_protocol]; /* Get where the header detail is stored in ip_hdr->headers[] */
590 ip_hdr,
612 ip_hdr->protocol = (int)prev_header;
624 static bool ecm_tracker_ip_header_helper_ipv6_generic(struct ecm_tracker_ip_protocols *etip, struct ecm_tracker_ip_protocol_header *etiph, struct ecm_tracker_ip_header *ip_hdr,
652 if (unlikely(ip_hdr->total_length < (offset + hdr_size))) {
653 DEBUG_WARN("TCP packet %p too short (total_length: %u, require: %u)\n", skb, ip_hdr->total_length, offset + hdr_size);
670 static bool ecm_tracker_ip_header_helper_ipv6_fragment(struct ecm_tracker_ip_protocols *etip, struct ecm_tracker_ip_protocol_header *etiph, struct ecm_tracker_ip_header *ip_hdr,
690 if (unlikely(ip_hdr->total_length < (offset + 8))) {
691 DEBUG_WARN("TCP packet %p too short (total_length: %u, require: %u)\n", skb, ip_hdr->total_length, offset + 8);
698 ip_hdr->fragmented = true;
713 static bool ecm_tracker_ip_header_helper_ah(struct ecm_tracker_ip_protocols *etip, struct ecm_tracker_ip_protocol_header *etiph, struct ecm_tracker_ip_header *ip_hdr,
738 if (!ip_hdr->is_v4) {
749 DEBUG_WARN("AH packet %p too short (total_length: %u, require: %u)\n", skb, ip_hdr->total_length, offset + hdr_size);
752 if (unlikely(ip_hdr->total_length < (offset + hdr_size))) {
753 DEBUG_WARN("AH packet %p too short (total_length: %u, require: %u)\n", skb, ip_hdr->total_length, offset + hdr_size);
773 static bool ecm_tracker_ip_header_helper_ipv6_icmp(struct ecm_tracker_ip_protocols *etip, struct ecm_tracker_ip_protocol_header *etiph, struct ecm_tracker_ip_header *ip_hdr,
799 static bool ecm_tracker_ip_header_helper_tcp(struct ecm_tracker_ip_protocols *etip, struct ecm_tracker_ip_protocol_header *etiph, struct ecm_tracker_ip_header *ip_hdr,
825 if (unlikely(ip_hdr->total_length < (offset + hdr_size))) {
826 DEBUG_WARN("TCP packet %p too short (total_length: %u, require: %u)\n", skb, ip_hdr->total_length, offset + hdr_size);
846 static bool ecm_tracker_ip_header_helper_gre(struct ecm_tracker_ip_protocols *etip, struct ecm_tracker_ip_protocol_header *etiph, struct ecm_tracker_ip_header *ip_hdr,
888 if (unlikely(ip_hdr->total_length < (offset + hdr_size))) {
889 DEBUG_WARN("GRE packet %p too short (total_length: %u, require: %u)\n", skb, ip_hdr->total_length, offset + hdr_size);
909 static bool ecm_tracker_ip_header_helper_udp(struct ecm_tracker_ip_protocols *etip, struct ecm_tracker_ip_protocol_header *etiph, struct ecm_tracker_ip_header *ip_hdr,
936 static bool ecm_tracker_ip_header_helper_unknown(struct ecm_tracker_ip_protocols *etip, struct ecm_tracker_ip_protocol_header *etiph, struct ecm_tracker_ip_header *ip_hdr,
954 static bool ecm_tracker_ip_header_helper_icmp(struct ecm_tracker_ip_protocols *etip, struct ecm_tracker_ip_protocol_header *etiph, struct ecm_tracker_ip_header *ip_hdr,