netlink: Abolish client param to netlink_icmp_simple

This parameter is not used (and some call sites pass NULL, anyway).

No functional change.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/netlink.c b/netlink.c
index b8f22d3..6241f70 100644 (file)
--- a/netlink.c
+++ b/netlink.c
@@ -367,7 +367,6 @@ static uint16_t netlink_icmp_reply_len(struct buffer_if *buf)
 /* client indicates where the packet we're constructing a response to
    comes from. NULL indicates the host. */
 static void netlink_icmp_simple(struct netlink *st, struct buffer_if *buf,
-                               struct netlink_client *client,
                                uint8_t type, uint8_t code,
                                union icmpinfofield info)
 {
@@ -535,7 +534,7 @@ static void netlink_packet_deliver(struct netlink *st,
            Message(M_DEBUG,"%s: don't know where to deliver packet "
                    "(s=%s, d=%s)\n", st->name, s, d);
            free(s); free(d);
-           netlink_icmp_simple(st,buf,client,ICMP_TYPE_UNREACHABLE,
+           netlink_icmp_simple(st,buf,ICMP_TYPE_UNREACHABLE,
                                ICMP_CODE_NET_UNREACHABLE, icmp_noinfo);
            BUF_FREE(buf);
        }
@@ -552,7 +551,7 @@ static void netlink_packet_deliver(struct netlink *st,
                    st->name,s,d);
            free(s); free(d);
                    
-           netlink_icmp_simple(st,buf,client,ICMP_TYPE_UNREACHABLE,
+           netlink_icmp_simple(st,buf,ICMP_TYPE_UNREACHABLE,
                                ICMP_CODE_NET_PROHIBITED, icmp_noinfo);
            BUF_FREE(buf);
        } else {
@@ -563,7 +562,7 @@ static void netlink_packet_deliver(struct netlink *st,
                BUF_ASSERT_FREE(buf);
            } else {
                /* Generate ICMP destination unreachable */
-               netlink_icmp_simple(st,buf,client,/* client==NULL */
+               netlink_icmp_simple(st,buf,
                                    ICMP_TYPE_UNREACHABLE,
                                    ICMP_CODE_NET_UNREACHABLE,
                                    icmp_noinfo);
@@ -586,7 +585,7 @@ static void netlink_packet_forward(struct netlink *st,
     /* Packet has already been checked */
     if (iph->ttl<=1) {
        /* Generate ICMP time exceeded */
-       netlink_icmp_simple(st,buf,client,ICMP_TYPE_TIME_EXCEEDED,
+       netlink_icmp_simple(st,buf,ICMP_TYPE_TIME_EXCEEDED,
                            ICMP_CODE_TTL_EXCEEDED,icmp_noinfo);
        BUF_FREE(buf);
        return;
@@ -641,7 +640,7 @@ static void netlink_packet_local(struct netlink *st,
        Message(M_WARNING,"%s: unknown incoming ICMP\n",st->name);
     } else {
        /* Send ICMP protocol unreachable */
-       netlink_icmp_simple(st,buf,client,ICMP_TYPE_UNREACHABLE,
+       netlink_icmp_simple(st,buf,ICMP_TYPE_UNREACHABLE,
                            ICMP_CODE_PROTOCOL_UNREACHABLE,icmp_noinfo);
        BUF_FREE(buf);
        return;