rtp_proxy.c: Ensure msgb_alloc is large enough for largest AMR frame

In AMR 12.2 (mode 7), the actual RTP payload is 33 bytes.  Howeerver,
as we store the length of the (dynamically-sized) AMR payload in the
first byte, our buffer needs at least 33+1 byte in size.

Change-Id: If1ad5d2d68c85733306c75ea62f67fe8fbc143b3
Reviewed-on: https://gerrit.osmocom.org/91
Tested-by: Jenkins Builder
Reviewed-by: Harald Welte <laforge@gnumonks.org>
This commit is contained in:
Harald Welte 2015-12-28 21:03:10 +01:00 committed by Neels Hofmeyr
parent aea28ceb27
commit ed04fcc179
1 changed files with 1 additions and 1 deletions

View File

@ -172,7 +172,7 @@ static int rtp_decode(struct msgb *msg, uint32_t callref, struct msgb **data)
/* always allocate for the maximum possible size to avoid
* fragmentation */
new_msg = msgb_alloc(sizeof(struct gsm_data_frame) +
MAX_RTP_PAYLOAD_LEN, "GSM-DATA (TCH)");
MAX_RTP_PAYLOAD_LEN+1, "GSM-DATA (TCH)");
if (!new_msg)
return -ENOMEM;