From: Adit Ranadive <[email protected]>
commit ce5d0b47f13f83dfb9fbb8ac91adad7120747aaf in mainline
Subject: [48/50] [PATCH] [PKTGEN]: srcmac fix
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
---
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) <[email protected]>
*
+ * Fixed src_mac command to set source mac of packet to value specified in
+ * command by Adit Ranadive <[email protected]>
+ *
*/
#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;
}
--
-
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