diff options
author | Stig Bjørlykke <stig@bjorlykke.org> | 2007-08-15 22:24:05 +0000 |
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committer | Stig Bjørlykke <stig@bjorlykke.org> | 2007-08-15 22:24:05 +0000 |
commit | c6ba6d714d900fef056ca6c8e78d191103e44f58 (patch) | |
tree | bf682a9754c4dec5bca8169263307716754416e0 /epan/reassemble.c | |
parent | 84e7d8ca70eb4095c2912d5818b720c17ba2c0ab (diff) |
Added fragment_start_seq_check to start a reassembly without adding any data.
svn path=/trunk/; revision=22513
Diffstat (limited to 'epan/reassemble.c')
-rw-r--r-- | epan/reassemble.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/epan/reassemble.c b/epan/reassemble.c index 223822a2c0..82b4e6b338 100644 --- a/epan/reassemble.c +++ b/epan/reassemble.c @@ -1691,6 +1691,46 @@ fragment_add_seq_next(tvbuff_t *tvb, int offset, packet_info *pinfo, more_frags, REASSEMBLE_FLAGS_NO_FRAG_NUMBER); } +void +fragment_start_seq_check(packet_info *pinfo, guint32 id, GHashTable *fragment_table, + guint32 tot_len) +{ + fragment_key key, *new_key; + fragment_data *fd_head; + + /* Have we already seen this frame ?*/ + if (pinfo->fd->flags.visited) { + return; + } + + /* Create key to search hash with */ + key.src = pinfo->src; + key.dst = pinfo->dst; + key.id = id; + + /* Check if fragment data exist for this key */ + fd_head = g_hash_table_lookup(fragment_table, &key); + + if (fd_head == NULL) { + /* Create list-head. */ + fd_head = g_mem_chunk_alloc(fragment_data_chunk); + + fd_head->next = NULL; + fd_head->datalen = tot_len; + fd_head->offset = 0; + fd_head->len = 0; + fd_head->flags = FD_BLOCKSEQUENCE|FD_DATALEN_SET; + fd_head->data = NULL; + fd_head->reassembled_in = 0; + /* + * We're going to use the key to insert the fragment, + * so copy it to a long-term store. + */ + new_key = fragment_key_copy(&key); + g_hash_table_insert(fragment_table, new_key, fd_head); + } +} + fragment_data * fragment_end_seq_next(packet_info *pinfo, guint32 id, GHashTable *fragment_table, GHashTable *reassembled_table) |