ALSA: hda - Fix wrong gpio_dir & gpio_mask hint setups for IDT/STAC codecs

[pandora-kernel.git] / tools / hv / hv_kvp_daemon.c

diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c
index 11224ed..5e19410 100644 (file)
--- a/tools/hv/hv_kvp_daemon.c
+++ b/tools/hv/hv_kvp_daemon.c
@@ -348,7 +348,7 @@ int main(void)
        fd = socket(AF_NETLINK, SOCK_DGRAM, NETLINK_CONNECTOR);
        if (fd < 0) {
                syslog(LOG_ERR, "netlink socket creation failed; error:%d", fd);
-               exit(-1);
+               exit(EXIT_FAILURE);
        }
        addr.nl_family = AF_NETLINK;
        addr.nl_pad = 0;
@@ -360,7 +360,7 @@ int main(void)
        if (error < 0) {
                syslog(LOG_ERR, "bind failed; error:%d", error);
                close(fd);
-               exit(-1);
+               exit(EXIT_FAILURE);
        }
        sock_opt = addr.nl_groups;
        setsockopt(fd, 270, 1, &sock_opt, sizeof(sock_opt));
@@ -378,24 +378,34 @@ int main(void)
        if (len < 0) {
                syslog(LOG_ERR, "netlink_send failed; error:%d", len);
                close(fd);
-               exit(-1);
+               exit(EXIT_FAILURE);
        }
 
        pfd.fd = fd;
 
        while (1) {
+               struct sockaddr *addr_p = (struct sockaddr *) &addr;
+               socklen_t addr_l = sizeof(addr);
                pfd.events = POLLIN;
                pfd.revents = 0;
                poll(&pfd, 1, -1);
 
-               len = recv(fd, kvp_recv_buffer, sizeof(kvp_recv_buffer), 0);
+               len = recvfrom(fd, kvp_recv_buffer, sizeof(kvp_recv_buffer), 0,
+                               addr_p, &addr_l);
 
                if (len < 0) {
-                       syslog(LOG_ERR, "recv failed; error:%d", len);
+                       syslog(LOG_ERR, "recvfrom failed; pid:%u error:%d %s",
+                                       addr.nl_pid, errno, strerror(errno));
                        close(fd);
                        return -1;
                }
 
+               if (addr.nl_pid) {
+                       syslog(LOG_WARNING, "Received packet from untrusted pid:%u",
+                                       addr.nl_pid);
+                       continue;
+               }
+
                incoming_msg = (struct nlmsghdr *)kvp_recv_buffer;
                incoming_cn_msg = (struct cn_msg *)NLMSG_DATA(incoming_msg);
 
@@ -493,7 +503,7 @@ int main(void)
                len = netlink_send(fd, incoming_cn_msg);
                if (len < 0) {
                        syslog(LOG_ERR, "net_link send failed; error:%d", len);
-                       exit(-1);
+                       exit(EXIT_FAILURE);
                }
        }