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[SGSN] SNDCP: Subtract SNDCP header from fragment length

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We don't want to store too many bytes as we would otherwise create
too large re-assembled packets..
This commit is contained in:
Harald Welte
2010-07-02 17:16:07 +02:00
parent 36f1217f32
commit 3d6815abd1
1 changed files with 3 additions and 2 deletions
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5
openbsc/src/gprs/gprs_sndcp.c
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@@ -80,7 +80,7 @@ LLIST_HEAD(gprs_sndcp_entities);
/* Enqueue a fragment into the defragment queue */
static int defrag_enqueue(struct gprs_sndcp_entity *sne, uint8_t seg_nr,
uint32_t data_len, uint8_t *data)
uint8_t *data, uint32_t data_len)
{
struct defrag_queue_entry *dqe;
@@ -237,7 +237,8 @@ static int defrag_input(struct gprs_sndcp_entity *sne, struct msgb *msg, uint8_t
}
/* FIXME: check if seg_nr already exists */
rc = defrag_enqueue(sne, suh->seg_nr, len, data);
/* make sure to subtract length of SNDCP header from 'len' */
rc = defrag_enqueue(sne, suh->seg_nr, data, len - (data - hdr));
if (rc < 0)
return rc;