diff options
| author | Sylvain Munaut <tnt@246tNt.com> | 2010-07-25 10:16:46 +0200 |
|---|---|---|
| committer | Sylvain Munaut <tnt@246tNt.com> | 2010-07-25 10:18:56 +0200 |
| commit | b4aac955815912d04b24aa4cfb468e5e7f9b1bf5 (patch) | |
| tree | 12550ddf26acbfc319d66d6aa1298e4af1bb6178 | |
| parent | b2bc4dcb59d6ee75bed16ea2b57828a32fa7bcf6 (diff) | |
layer23: Alloc some headroom in incoming l1ctl packets
The upper layer will modify the headers and add somestuff in front,
so it's needed to avoid corrupting memory.
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
| -rw-r--r-- | src/host/layer23/src/l1l2_interface.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/host/layer23/src/l1l2_interface.c b/src/host/layer23/src/l1l2_interface.c index 3c359e84..f6d66bb5 100644 --- a/src/host/layer23/src/l1l2_interface.c +++ b/src/host/layer23/src/l1l2_interface.c @@ -37,6 +37,7 @@ #include <stdlib.h> #define GSM_L2_LENGTH 256 +#define GSM_L2_HEADROOM 32 extern int quit; @@ -46,7 +47,7 @@ static int layer2_read(struct bsc_fd *fd) u_int16_t len; int rc; - msg = msgb_alloc(GSM_L2_LENGTH, "Layer2"); + msg = msgb_alloc_headroom(GSM_L2_LENGTH+GSM_L2_HEADROOM, GSM_L2_HEADROOM, "Layer2"); if (!msg) { LOGP(DL1C, LOGL_ERROR, "Failed to allocate msg.\n"); return -ENOMEM; |