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-rw-r--r--proto_nlmsg.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/proto_nlmsg.c b/proto_nlmsg.c
index f5abf57..0098d27 100644
--- a/proto_nlmsg.c
+++ b/proto_nlmsg.c
@@ -4,7 +4,10 @@
* Subject to the GPL, version 2.
*/
+#include <stdio.h>
+#include <unistd.h>
#include <libnl3/netlink/msg.h>
+#include <libgen.h>
#include "pkt_buff.h"
#include "proto.h"
@@ -14,10 +17,23 @@ static void nlmsg(struct pkt_buff *pkt)
struct nlmsghdr *hdr = (struct nlmsghdr *) pkt_pull(pkt, sizeof(*hdr));
char type[32];
char flags[128];
+ char procname[1024];
if (hdr == NULL)
return;
+ /* Look up the process name if message is not coming from the kernel */
+ if (hdr->nlmsg_pid != 0) {
+ char path[1024];
+ int ret;
+
+ snprintf(path, sizeof(path), "/proc/%u/exe", hdr->nlmsg_pid);
+ ret = readlink(path, procname, sizeof(procname) - 1);
+ if (ret < 0)
+ procname[0] = '\0';
+ } else
+ snprintf(procname, sizeof(procname), "kernel");
+
tprintf(" [ NLMSG ");
tprintf("Len %u, ", hdr->nlmsg_len);
tprintf("Type 0x%.4x (%s%s%s), ", hdr->nlmsg_type,
@@ -30,6 +46,9 @@ static void nlmsg(struct pkt_buff *pkt)
colorize_end());
tprintf("Seq-Nr %u, ", hdr->nlmsg_seq);
tprintf("PID %u", hdr->nlmsg_pid);
+ if (procname[0])
+ tprintf(" (%s%s%s)", colorize_start(bold), basename(procname),
+ colorize_end());
tprintf(" ]\n");
}