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authorPeter Korsgaard2016-08-26 18:46:34 +0200
committerDenys Vlasenko2016-08-26 18:46:34 +0200
commitb6355e2bb5c931413735b7df2964e20e050bbc07 (patch)
tree3b05bb9db066f33c267adb4b2b607f725cb06eb6
parent0dddbc1a59795a77679d8c5ef48a2795cb470563 (diff)
downloadbusybox-b6355e2bb5c931413735b7df2964e20e050bbc07.zip
busybox-b6355e2bb5c931413735b7df2964e20e050bbc07.tar.gz
udhcpc: Unconditionally call deconfig script, not only if lease is active
The udhcpc script may be used to setup fallback configuration (E.G. IPv4LL, fixed IP address, ..) that also needs to be cleaned up on release (E.G. when SIGUSR2 is called or on shutdown with -R), so unconditionally call deconfig. Signed-off-by: Peter Korsgaard <peter@korsgaard.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--networking/udhcp/d6_dhcpc.c9
-rw-r--r--networking/udhcp/dhcpc.c13
2 files changed, 16 insertions, 6 deletions
diff --git a/networking/udhcp/d6_dhcpc.c b/networking/udhcp/d6_dhcpc.c
index 6ff040d..ddf3412 100644
--- a/networking/udhcp/d6_dhcpc.c
+++ b/networking/udhcp/d6_dhcpc.c
@@ -800,10 +800,15 @@ static void perform_d6_release(struct in6_addr *server_ipv6, struct in6_addr *ou
) {
bb_error_msg("unicasting a release");
send_d6_release(server_ipv6, our_cur_ipv6); /* unicast */
- d6_run_script(NULL, "deconfig");
}
bb_error_msg("entering released state");
-
+/*
+ * We can be here on: SIGUSR2,
+ * or on exit (SIGTERM) and -R "release on quit" is specified.
+ * Users requested to be notified in all cases, even if not in one
+ * of the states above.
+ */
+ d6_run_script(NULL, "deconfig");
change_listen_mode(LISTEN_NONE);
state = RELEASED;
}
diff --git a/networking/udhcp/dhcpc.c b/networking/udhcp/dhcpc.c
index 8a16e98..bef7327 100644
--- a/networking/udhcp/dhcpc.c
+++ b/networking/udhcp/dhcpc.c
@@ -1129,9 +1129,15 @@ static void perform_release(uint32_t server_addr, uint32_t requested_ip)
bb_error_msg("unicasting a release of %s to %s",
inet_ntoa(temp_addr), buffer);
send_release(server_addr, requested_ip); /* unicast */
- udhcp_run_script(NULL, "deconfig");
}
bb_error_msg("entering released state");
+/*
+ * We can be here on: SIGUSR2,
+ * or on exit (SIGTERM) and -R "release on quit" is specified.
+ * Users requested to be notified in all cases, even if not in one
+ * of the states above.
+ */
+ udhcp_run_script(NULL, "deconfig");
change_listen_mode(LISTEN_NONE);
state = RELEASED;
@@ -1813,9 +1819,8 @@ int udhcpc_main(int argc UNUSED_PARAM, char **argv)
temp = udhcp_get_option(&packet, DHCP_SERVER_ID);
if (!temp) {
non_matching_svid:
- log1("%s with wrong server ID, ignoring packet",
- "Received DHCP NAK"
- );
+ log1("received DHCP NAK with wrong"
+ " server ID, ignoring packet");
continue;
}
move_from_unaligned32(svid, temp);