| From 53626cd06a3ef05ed847daea802ef0aa9661caa7 Mon Sep 17 00:00:00 2001 |
| From: Anders Darander <anders@chargestorm.se> |
| Date: Thu, 3 Nov 2011 08:51:31 +0100 |
| Subject: [PATCH] busybox-udhcpc-no_deconfig.patch |
| |
| Upstream-Status: Pending |
| |
| Add a new option -D to the udhcpc client that allows for |
| dhcp renewal to occur without having to down the interface |
| in the process. |
| |
| Signed-off-by: Greg Moffatt <greg.moffatt@windriver.com> |
| |
| Updated to latest Busybox 1.17.3 |
| |
| Signed-off-by: Mark Hatle <mark.hatle@windriver.com> |
| |
| Updated to Busybox 1.18.4 |
| option spec is changed |
| |
| Signed-off-by: Qing He <qing.he@intel.com> |
| |
| Updated to Busybox 1.19.3 |
| |
| Signed-off-by: Anders Darander <anders@chargestorm.se> |
| |
| Fixed options -b, -a and -P. |
| |
| Signed-off-by: Andreas Oberritter <obi@opendreambox.org> |
| --- |
| networking/udhcp/dhcpc.c | 29 ++++++++++++++++------ |
| 1 file changed, 21 insertions(+), 8 deletions(-) |
| |
| Index: busybox-1.32.0/networking/udhcp/dhcpc.c |
| =================================================================== |
| --- busybox-1.32.0.orig/networking/udhcp/dhcpc.c |
| +++ busybox-1.32.0/networking/udhcp/dhcpc.c |
| @@ -48,6 +48,8 @@ struct tpacket_auxdata { |
| }; |
| #endif |
| |
| +/* option whether to down the interface when reconfiguring */ |
| +static int allow_deconfig = 1; |
| |
| /* "struct client_data_t client_data" is in bb_common_bufsiz1 */ |
| |
| @@ -103,8 +105,10 @@ |
| OPT_x = 1 << 18, |
| OPT_f = 1 << 19, |
| OPT_B = 1 << 20, |
| + OPT_D = 1 << 21, |
| /* The rest has variable bit positions, need to be clever */ |
| OPTBIT_B = 20, |
| + OPTBIT_D = 21, |
| USE_FOR_MMU( OPTBIT_b,) |
| IF_FEATURE_UDHCPC_ARPING(OPTBIT_a,) |
| IF_FEATURE_UDHCP_PORT( OPTBIT_P,) |
| @@ -1084,7 +1088,8 @@ |
| client_data.state = RENEW_REQUESTED; |
| break; |
| case RENEW_REQUESTED: /* impatient are we? fine, square 1 */ |
| - udhcp_run_script(NULL, "deconfig"); |
| + if (allow_deconfig) |
| + udhcp_run_script(NULL, "deconfig"); |
| case REQUESTING: |
| case RELEASED: |
| change_listen_mode(LISTEN_RAW); |
| @@ -1120,7 +1125,8 @@ static void perform_release(uint32_t server_addr, uint32_t requested_ip) |
| * Users requested to be notified in all cases, even if not in one |
| * of the states above. |
| */ |
| - udhcp_run_script(NULL, "deconfig"); |
| + if (allow_deconfig) |
| + udhcp_run_script(NULL, "deconfig"); |
| |
| change_listen_mode(LISTEN_NONE); |
| client_data.state = RELEASED; |
| @@ -1238,7 +1244,7 @@ |
| /* Parse command line */ |
| opt = getopt32long(argv, "^" |
| /* O,x: list; -T,-t,-A take numeric param */ |
| - "CV:H:h:F:i:np:qRr:s:T:+t:+SA:+O:*ox:*fB" |
| + "CV:H:h:F:i:np:qRr:s:T:+t:+SA:+O:*ox:*fBD" |
| USE_FOR_MMU("b") |
| IF_FEATURE_UDHCPC_ARPING("a::") |
| IF_FEATURE_UDHCP_PORT("P:") |
| @@ -1349,6 +1355,10 @@ |
| logmode |= LOGMODE_SYSLOG; |
| } |
| |
| + if (opt & OPT_D) { |
| + allow_deconfig = 0; |
| + } |
| + |
| /* Create pidfile */ |
| write_pidfile(client_data.pidfile); |
| /* Goes to stdout (unless NOMMU) and possibly syslog */ |
| @@ -1357,7 +1367,8 @@ |
| srand(monotonic_us()); |
| |
| client_data.state = INIT_SELECTING; |
| - udhcp_run_script(NULL, "deconfig"); |
| + if (allow_deconfig) |
| + udhcp_run_script(NULL, "deconfig"); |
| change_listen_mode(LISTEN_RAW); |
| packet_num = 0; |
| timeout = 0; |
| @@ -1530,7 +1541,8 @@ |
| } |
| /* Timed out, enter init state */ |
| bb_simple_info_msg("lease lost, entering init state"); |
| - udhcp_run_script(NULL, "deconfig"); |
| + if (allow_deconfig) |
| + udhcp_run_script(NULL, "deconfig"); |
| client_data.state = INIT_SELECTING; |
| client_data.first_secs = 0; /* make secs field count from 0 */ |
| /*timeout = 0; - already is */ |
| @@ -1722,8 +1734,10 @@ |
| "(got ARP reply), declining"); |
| send_decline(/*xid,*/ server_addr, packet.yiaddr); |
| |
| - if (client_data.state != REQUESTING) |
| - udhcp_run_script(NULL, "deconfig"); |
| + if (client_data.state != REQUESTING) { |
| + if (allow_deconfig) |
| + udhcp_run_script(NULL, "deconfig"); |
| + } |
| change_listen_mode(LISTEN_RAW); |
| client_data.state = INIT_SELECTING; |
| client_data.first_secs = 0; /* make secs field count from 0 */ |
| @@ -1792,8 +1806,10 @@ |
| /* return to init state */ |
| bb_info_msg("received %s", "DHCP NAK"); |
| udhcp_run_script(&packet, "nak"); |
| - if (client_data.state != REQUESTING) |
| - udhcp_run_script(NULL, "deconfig"); |
| + if (client_data.state != REQUESTING) { |
| + if (allow_deconfig) |
| + udhcp_run_script(NULL, "deconfig"); |
| + } |
| change_listen_mode(LISTEN_RAW); |
| sleep(3); /* avoid excessive network traffic */ |
| client_data.state = INIT_SELECTING; |