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authorJoe Hershberger <joe.hershberger@ni.com>2012-05-23 07:58:00 +0000
committerJoe Hershberger <joe.hershberger@ni.com>2012-05-23 14:19:23 -0500
commit1735188329d8c6357299462275061c05a46e100f (patch)
tree65b5a8910106cc04ae9c5ed013f51053c6274c8c /include/net.h
parentf575ae1f7d3940efbfc43e4236adb4a8ec1db632 (diff)
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net: Encapsulate CDP packet identification
Checking for CDP packets should be encapsulated, not copied code. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Diffstat (limited to 'include/net.h')
-rw-r--r--include/net.h12
1 files changed, 10 insertions, 2 deletions
diff --git a/include/net.h b/include/net.h
index 8a5b09f..453231b 100644
--- a/include/net.h
+++ b/include/net.h
@@ -356,8 +356,6 @@ extern uchar NetEtherNullAddr[6];
extern ushort NetOurVLAN; /* Our VLAN */
extern ushort NetOurNativeVLAN; /* Our Native VLAN */
-extern const uchar NetCDPAddr[6]; /* Ethernet CDP address */
-
extern int NetState; /* Network loop state */
#define NETLOOP_CONTINUE 1
#define NETLOOP_RESTART 2
@@ -387,6 +385,16 @@ extern IPaddr_t NetPingIP; /* the ip address to ping */
/* when CDP completes these hold the return values */
extern ushort CDPNativeVLAN; /* CDP returned native VLAN */
extern ushort CDPApplianceVLAN; /* CDP returned appliance VLAN */
+
+/*
+ * Check for a CDP packet by examining the received MAC address field
+ */
+static inline int is_cdp_packet(const uchar *et_addr)
+{
+ extern const uchar NetCDPAddr[6];
+
+ return memcmp(et_addr, NetCDPAddr, 6) == 0;
+}
#endif
#if defined(CONFIG_CMD_SNTP)