[48/50] Fix pktgen src_mac handling.

Greg KH
2007-09-24T16:43:41Z

[-- Attachment #1: fix-pktgen-src_mac-handling.patch --]
[-- Type: text/plain, Size: 1305 bytes --]

From: Adit Ranadive <adit.262@gmail.com>

commit ce5d0b47f13f83dfb9fbb8ac91adad7120747aaf in mainline

Subject: [48/50] [PATCH] [PKTGEN]: srcmac fix

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

---
net/core/pktgen.c | 10 ++++++++++
1 file changed, 10 insertions(+)

--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -111,6 +111,9 @@
*
* 802.1Q/Q-in-Q support by Francesco Fondelli (FF) <francesco.fondelli@gmail.com>
*
+ * Fixed src_mac command to set source mac of packet to value specified in
+ * command by Adit Ranadive <adit.262@gmail.com>
+ *
*/
#include <linux/sys.h>
#include <linux/types.h>
@@ -1415,8 +1418,11 @@ static ssize_t pktgen_if_write(struct fi
}
if (!strcmp(name, "src_mac")) {
char *v = valstr;
+ unsigned char old_smac[ETH_ALEN];
unsigned char *m = pkt_dev->src_mac;

+ memcpy(old_smac, pkt_dev->src_mac, ETH_ALEN);
+
len = strn_len(&user_buffer[i], sizeof(valstr) - 1);
if (len < 0) {
return len;
@@ -1445,6 +1451,10 @@ static ssize_t pktgen_if_write(struct fi
}
}

+ /* Set up Src MAC */
+ if (compare_ether_addr(old_smac, pkt_dev->src_mac))
+ memcpy(&(pkt_dev->hh[6]), pkt_dev->src_mac, ETH_ALEN);
+
sprintf(pg_result, "OK: srcmac");
return count;
}

--