Lines Matching refs:chunk
44 struct sctp_chunk *chunk, *tmp;
47 list_for_each_entry_safe(chunk, tmp, &queue->in_chunk_list, list) {
48 list_del_init(&chunk->list);
49 sctp_chunk_free(chunk);
64 void sctp_inq_push(struct sctp_inq *q, struct sctp_chunk *chunk)
67 if (chunk->rcvr->dead) {
68 sctp_chunk_free(chunk);
77 list_add_tail(&chunk->list, &q->in_chunk_list);
78 if (chunk->asoc)
79 chunk->asoc->stats.ipackets++;
83 /* Peek at the next chunk on the inqeue. */
86 struct sctp_chunk *chunk;
89 chunk = queue->in_progress;
91 if (chunk->singleton ||
92 chunk->end_of_packet ||
93 chunk->pdiscard)
96 ch = (struct sctp_chunkhdr *)chunk->chunk_end;
102 /* Extract a chunk from an SCTP inqueue.
104 * WARNING: If you need to put the chunk on another queue, you need to
109 struct sctp_chunk *chunk;
116 chunk = queue->in_progress;
117 if (chunk) {
121 if (chunk->singleton ||
122 chunk->end_of_packet ||
123 chunk->pdiscard) {
124 if (chunk->head_skb == chunk->skb) {
125 chunk->skb = skb_shinfo(chunk->skb)->frag_list;
128 if (chunk->skb->next) {
129 chunk->skb = chunk->skb->next;
133 if (chunk->head_skb)
134 chunk->skb = chunk->head_skb;
135 sctp_chunk_free(chunk);
136 chunk = queue->in_progress = NULL;
138 /* Nothing to do. Next chunk in the packet, please. */
139 ch = (struct sctp_chunkhdr *)chunk->chunk_end;
140 /* Force chunk->skb->data to chunk->chunk_end. */
141 skb_pull(chunk->skb, chunk->chunk_end - chunk->skb->data);
147 if (!chunk) {
156 chunk = list_entry(entry, struct sctp_chunk, list);
158 if (skb_is_gso(chunk->skb) && skb_is_gso_sctp(chunk->skb)) {
162 if (skb_shinfo(chunk->skb)->frag_list)
163 chunk->head_skb = chunk->skb;
166 if (chunk->head_skb && chunk->skb->data_len == chunk->skb->len)
167 chunk->skb = skb_shinfo(chunk->skb)->frag_list;
169 if (WARN_ON(!chunk->skb)) {
170 __SCTP_INC_STATS(dev_net(chunk->skb->dev), SCTP_MIB_IN_PKT_DISCARDS);
171 sctp_chunk_free(chunk);
176 if (chunk->asoc)
177 sock_rps_save_rxhash(chunk->asoc->base.sk, chunk->skb);
179 queue->in_progress = chunk;
182 /* This is the first chunk in the packet. */
183 ch = (struct sctp_chunkhdr *)chunk->skb->data;
184 chunk->singleton = 1;
185 chunk->data_accepted = 0;
186 chunk->pdiscard = 0;
187 chunk->auth = 0;
188 chunk->has_asconf = 0;
189 chunk->end_of_packet = 0;
190 if (chunk->head_skb) {
192 *cb = SCTP_INPUT_CB(chunk->skb),
193 *head_cb = SCTP_INPUT_CB(chunk->head_skb);
195 cb->chunk = head_cb->chunk;
200 chunk->chunk_hdr = ch;
201 chunk->chunk_end = ((__u8 *)ch) + SCTP_PAD4(ntohs(ch->length));
202 skb_pull(chunk->skb, sizeof(*ch));
203 chunk->subh.v = NULL; /* Subheader is no longer valid. */
205 if (chunk->chunk_end + sizeof(*ch) <= skb_tail_pointer(chunk->skb)) {
207 chunk->singleton = 0;
208 } else if (chunk->chunk_end > skb_tail_pointer(chunk->skb)) {
210 chunk->pdiscard = 1;
211 chunk->chunk_end = skb_tail_pointer(chunk->skb);
213 /* We are at the end of the packet, so mark the chunk
216 chunk->end_of_packet = 1;
219 pr_debug("+++sctp_inq_pop+++ chunk:%p[%s], length:%d, skb->len:%d\n",
220 chunk, sctp_cname(SCTP_ST_CHUNK(chunk->chunk_hdr->type)),
221 ntohs(chunk->chunk_hdr->length), chunk->skb->len);
223 return chunk;