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| author | Harald Welte <laforge@gnumonks.org> | 2018-07-28 21:37:06 +0200 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2019-03-19 13:41:49 +0000 |
| commit | 1261db15058cfa94615f26c1083bb8a38d09218b (patch) | |
| tree | a7d7e6e45b0429c961da919168bb185e9cd5cf7d /src/gsm/ipa.c | |
| parent | fb6f43ee0c6a288e036ca616a29f6b7485d426c6 (diff) | |
ipa_ccm_idtag_parse*: Fix reported length value
IPA CCM is using a somewhat weird TLV encoding scheme:
* 16bit length (of tag and value)
* 8bit tag
* value
Our existing code mapping the CCM to 'struct tlv_parse' used the plain
length value without accounting for the one-byte tag.
This patch ensures we only report the length of the "value" part,
excluding the tag.
Change-Id: I435aaa33605bd48635715a2c81aa2d231c1abf51
Diffstat (limited to 'src/gsm/ipa.c')
| -rw-r--r-- | src/gsm/ipa.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/gsm/ipa.c b/src/gsm/ipa.c index d423c262..b6fdc985 100644 --- a/src/gsm/ipa.c +++ b/src/gsm/ipa.c @@ -128,7 +128,7 @@ int ipa_ccm_idtag_parse_off(struct tlv_parsed *dec, unsigned char *buf, int len, DEBUGPC(DLMI, "%s='%s' ", ipa_ccm_idtag_name(t_tag), cur); - dec->lv[t_tag].len = t_len - len_offset; + dec->lv[t_tag].len = t_len - 1 - len_offset; dec->lv[t_tag].val = cur; cur += t_len - len_offset; |