[Qemu-devel] [RFC PATCH 01/11] linux-user/strace: dump AF_NETLINK sockaddr content

["Philippe Mathieu-Daudé" <f4bug@amsat.org>]

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
please double check __pad and ntohl()

 linux-user/syscall_defs.h |  7 +++++++
 linux-user/strace.c       | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 41 insertions(+)

diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index bec3680b94..550e7d2939 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -151,6 +151,13 @@ struct target_sockaddr_un {
     uint8_t sun_path[108];
 };
 
+struct target_sockaddr_nl {
+    uint16_t nl_family;     /* AF_NETLINK */
+    int16_t __pad;
+    uint32_t nl_pid;
+    uint32_t nl_groups;
+};
+
 struct target_in_addr {
     uint32_t s_addr; /* big endian */
 };
diff --git a/linux-user/strace.c b/linux-user/strace.c
index bd897a3f20..7eb5e2ab48 100644
--- a/linux-user/strace.c
+++ b/linux-user/strace.c
@@ -8,6 +8,7 @@
 #include <arpa/inet.h>
 #include <netinet/tcp.h>
 #include <linux/if_packet.h>
+#include <linux/netlink.h>
 #include <sched.h>
 #include "qemu.h"
 
@@ -397,6 +398,12 @@ print_sockaddr(abi_ulong addr, abi_long addrlen)
             gemu_log("}");
             break;
         }
+        case AF_NETLINK: {
+            struct target_sockaddr_nl *nl = (struct target_sockaddr_nl *)sa;
+            gemu_log("{nl_family=AF_NETLINK,nl_pid=%u,nl_groups=%u}",
+                     ntohl(nl->nl_pid), ntohl(nl->nl_groups));
+            break;
+        }
         default:
             gemu_log("{sa_family=%d, sa_data={", sa->sa_family);
             for (i = 0; i < 13; i++) {
@@ -423,6 +430,9 @@ print_socket_domain(int domain)
     case PF_INET:
         gemu_log("PF_INET");
         break;
+    case PF_NETLINK:
+        gemu_log("PF_NETLINK");
+        break;
     case PF_PACKET:
         gemu_log("PF_PACKET");
         break;
@@ -472,6 +482,30 @@ print_socket_protocol(int domain, int type, int protocol)
         return;
     }
 
+    if (domain == AF_NETLINK) {
+        switch (protocol) {
+        case NETLINK_ROUTE:
+            gemu_log("NETLINK_ROUTE");
+            break;
+        case NETLINK_AUDIT:
+            gemu_log("NETLINK_AUDIT");
+            break;
+        case NETLINK_NETFILTER:
+            gemu_log("NETLINK_NETFILTER");
+            break;
+        case NETLINK_RDMA:
+            gemu_log("NETLINK_RDMA");
+            break;
+        case NETLINK_CRYPTO:
+            gemu_log("NETLINK_CRYPTO");
+            break;
+        default:
+            gemu_log("%d", protocol);
+            break;
+        }
+        return;
+    }
+
     switch (protocol) {
     case IPPROTO_IP:
         gemu_log("IPPROTO_IP");
-- 
2.15.1