Add support to show the FCS Option value in a configuration request into
the L2CAP layer.
---
parser/l2cap.c | 29 +++++++++++++++++++++++++++++
1 files changed, 29 insertions(+), 0 deletions(-)
diff --git a/parser/l2cap.c b/parser/l2cap.c
index 3bcb531..436f039 100644
--- a/parser/l2cap.c
+++ b/parser/l2cap.c
@@ -315,6 +315,18 @@ static char *mode2str(uint8_t mode)
}
}
+static char *fcs2str(uint8_t fcs)
+{
+ switch (fcs) {
+ case 0x00:
+ return "No FCS";
+ case 0x01:
+ return "CRC16 Check";
+ default:
+ return "Reserved";
+ }
+}
+
static char *sar2str(uint8_t sar)
{
switch (sar) {
@@ -446,6 +458,16 @@ static void conf_rfc(void *ptr, int len, int in, uint16_t cid)
printf(")");
}
+static void conf_fcs(void *ptr, int len)
+{
+ uint8_t fcs;
+
+ fcs = *((uint8_t *) ptr);
+ printf("FCS Option");
+ if (len > 0)
+ printf(" 0x%2.2x (%s)", fcs, fcs2str(fcs));
+}
+
static void conf_opt(int level, void *ptr, int len, int in, uint16_t cid)
{
p_indent(level, 0);
@@ -482,6 +504,10 @@ static void conf_opt(int level, void *ptr, int len, int in, uint16_t cid)
conf_rfc(h->val, h->len, in, cid);
break;
+ case L2CAP_CONF_FCS:
+ conf_fcs(h->val, h->len);
+ break;
+
default:
printf("Unknown (type %2.2x, len %d)", h->type & 0x7f, h->len);
break;
@@ -514,6 +540,9 @@ static void conf_list(int level, uint8_t *list, int len)
case L2CAP_CONF_RFC:
printf("RFC ");
break;
+ case L2CAP_CONF_FCS:
+ printf("FCS ");
+ break;
default:
printf("%2.2x ", list[i] & 0x7f);
break;
--
1.6.3.3
--
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