| 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 files changed, 21 insertions(+), 8 deletions(-) |
| |
| Index: busybox-1.20.2/networking/udhcp/dhcpc.c |
| =================================================================== |
| --- busybox-1.20.2.orig/networking/udhcp/dhcpc.c |
| +++ busybox-1.20.2/networking/udhcp/dhcpc.c |
| @@ -29,6 +29,9 @@ |
| #include <netpacket/packet.h> |
| #include <linux/filter.h> |
| |
| +/* option whether to down the interface when reconfiguring */ |
| +static int allow_deconfig = 1; |
| + |
| /* "struct client_config_t client_config" is in bb_common_bufsiz1 */ |
| |
| |
| @@ -81,8 +84,9 @@ enum { |
| 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,) |
| @@ -1040,7 +1044,8 @@ static void perform_renew(void) |
| 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); |
| @@ -1064,7 +1069,8 @@ static void perform_release(uint32_t ser |
| bb_info_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"); |
| + if (allow_deconfig) |
| + udhcp_run_script(NULL, "deconfig"); |
| } |
| bb_info_msg("Entering released state"); |
| |
| @@ -1215,7 +1221,7 @@ int udhcpc_main(int argc UNUSED_PARAM, c |
| /* O,x: list; -T,-t,-A take numeric param */ |
| opt_complementary = "O::x::T+:t+:A+" IF_UDHCP_VERBOSE(":vv") ; |
| IF_LONG_OPTS(applet_long_options = udhcpc_longopts;) |
| - opt = getopt32(argv, "CV:H:h:F:i:np:qRr:s:T:t:SA:O:ox:fB" |
| + opt = getopt32(argv, "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:") |
| @@ -1316,6 +1322,9 @@ int udhcpc_main(int argc UNUSED_PARAM, c |
| logmode |= LOGMODE_SYSLOG; |
| } |
| |
| + if (opt & OPT_D) |
| + allow_deconfig = 0; |
| + |
| /* Make sure fd 0,1,2 are open */ |
| bb_sanitize_stdio(); |
| /* Equivalent of doing a fflush after every \n */ |
| @@ -1330,7 +1339,8 @@ int udhcpc_main(int argc UNUSED_PARAM, c |
| srand(monotonic_us()); |
| |
| 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; |
| @@ -1484,7 +1494,8 @@ int udhcpc_main(int argc UNUSED_PARAM, c |
| } |
| /* Timed out, enter init state */ |
| bb_info_msg("Lease lost, entering init state"); |
| - udhcp_run_script(NULL, "deconfig"); |
| + if (allow_deconfig) |
| + udhcp_run_script(NULL, "deconfig"); |
| state = INIT_SELECTING; |
| client_config.first_secs = 0; /* make secs field count from 0 */ |
| /*timeout = 0; - already is */ |
| @@ -1667,7 +1678,8 @@ int udhcpc_main(int argc UNUSED_PARAM, c |
| send_decline(/*xid,*/ server_addr, packet.yiaddr); |
| |
| if (state != REQUESTING) |
| - udhcp_run_script(NULL, "deconfig"); |
| + if (allow_deconfig) |
| + udhcp_run_script(NULL, "deconfig"); |
| change_listen_mode(LISTEN_RAW); |
| state = INIT_SELECTING; |
| client_config.first_secs = 0; /* make secs field count from 0 */ |
| @@ -1711,7 +1723,8 @@ int udhcpc_main(int argc UNUSED_PARAM, c |
| bb_info_msg("Received DHCP NAK"); |
| udhcp_run_script(&packet, "nak"); |
| if (state != REQUESTING) |
| - udhcp_run_script(NULL, "deconfig"); |
| + if (allow_deconfig) |
| + udhcp_run_script(NULL, "deconfig"); |
| change_listen_mode(LISTEN_RAW); |
| sleep(3); /* avoid excessive network traffic */ |
| state = INIT_SELECTING; |