diff options
Diffstat (limited to 'networking/udhcp')
| -rw-r--r-- | networking/udhcp/Config.src | 128 | ||||
| -rw-r--r-- | networking/udhcp/d6_dhcpc.c | 14 |
2 files changed, 71 insertions, 71 deletions
diff --git a/networking/udhcp/Config.src b/networking/udhcp/Config.src index 43f3676..af2fe18 100644 --- a/networking/udhcp/Config.src +++ b/networking/udhcp/Config.src @@ -10,105 +10,105 @@ config UDHCPD default y select PLATFORM_LINUX help - udhcpd is a DHCP server geared primarily toward embedded systems, - while striving to be fully functional and RFC compliant. + udhcpd is a DHCP server geared primarily toward embedded systems, + while striving to be fully functional and RFC compliant. config FEATURE_UDHCPD_WRITE_LEASES_EARLY bool "Rewrite the lease file at every new acknowledge" default y depends on UDHCPD help - If selected, udhcpd will write a new file with leases every - time a new lease has been accepted, thus eliminating the need - to send SIGUSR1 for the initial writing or updating. Any timed - rewriting remains undisturbed. + If selected, udhcpd will write a new file with leases every + time a new lease has been accepted, thus eliminating the need + to send SIGUSR1 for the initial writing or updating. Any timed + rewriting remains undisturbed. config FEATURE_UDHCPD_BASE_IP_ON_MAC bool "Select IP address based on client MAC" default n depends on UDHCPD help - If selected, udhcpd will base its selection of IP address to offer - on the client's hardware address. Otherwise udhcpd uses the next - consecutive free address. + If selected, udhcpd will base its selection of IP address to offer + on the client's hardware address. Otherwise udhcpd uses the next + consecutive free address. - This reduces the frequency of IP address changes for clients - which let their lease expire, and makes consecutive DHCPOFFERS - for the same client to (almost always) contain the same - IP address. + This reduces the frequency of IP address changes for clients + which let their lease expire, and makes consecutive DHCPOFFERS + for the same client to (almost always) contain the same + IP address. config DHCPD_LEASES_FILE string "Absolute path to lease file" default "/var/lib/misc/udhcpd.leases" depends on UDHCPD help - udhcpd stores addresses in a lease file. This is the absolute path - of the file. Normally it is safe to leave it untouched. + udhcpd stores addresses in a lease file. This is the absolute path + of the file. Normally it is safe to leave it untouched. config DUMPLEASES bool "dumpleases (6.4 kb)" default y help - dumpleases displays the leases written out by the udhcpd. - Lease times are stored in the file by time remaining in lease, or - by the absolute time that it expires in seconds from epoch. + dumpleases displays the leases written out by the udhcpd. + Lease times are stored in the file by time remaining in lease, or + by the absolute time that it expires in seconds from epoch. config DHCPRELAY bool "dhcprelay (5.8 kb)" default y help - dhcprelay listens for dhcp requests on one or more interfaces - and forwards these requests to a different interface or dhcp - server. + dhcprelay listens for dhcp requests on one or more interfaces + and forwards these requests to a different interface or dhcp + server. config UDHCPC bool "udhcpc (DHCP client)" default y select PLATFORM_LINUX help - udhcpc is a DHCP client geared primarily toward embedded systems, - while striving to be fully functional and RFC compliant. + udhcpc is a DHCP client geared primarily toward embedded systems, + while striving to be fully functional and RFC compliant. - The udhcp client negotiates a lease with the DHCP server and - runs a script when a lease is obtained or lost. + The udhcp client negotiates a lease with the DHCP server and + runs a script when a lease is obtained or lost. config FEATURE_UDHCPC_ARPING bool "Verify that the offered address is free, using ARP ping" default y depends on UDHCPC help - If selected, udhcpc will send ARP probes and make sure - the offered address is really not in use by anyone. The client - will DHCPDECLINE the offer if the address is in use, - and restart the discover process. + If selected, udhcpc will send ARP probes and make sure + the offered address is really not in use by anyone. The client + will DHCPDECLINE the offer if the address is in use, + and restart the discover process. config FEATURE_UDHCPC_SANITIZEOPT bool "Do not pass malformed host and domain names" default y depends on UDHCPC help - If selected, udhcpc will check some options (such as option 12 - - hostname) and if they don't look like valid hostnames - (for example, if they start with dash or contain spaces), - they will be replaced with string "bad" when exporting - to the environment. + If selected, udhcpc will check some options (such as option 12 - + hostname) and if they don't look like valid hostnames + (for example, if they start with dash or contain spaces), + they will be replaced with string "bad" when exporting + to the environment. config UDHCPC_DEFAULT_SCRIPT string "Absolute path to config script" default "/usr/share/udhcpc/default.script" depends on UDHCPC help - This script is called after udhcpc receives an answer. See - examples/udhcp for a working example. Normally it is safe - to leave this untouched. + This script is called after udhcpc receives an answer. See + examples/udhcp for a working example. Normally it is safe + to leave this untouched. config FEATURE_UDHCP_PORT bool "Enable '-P port' option for udhcpd and udhcpc" default n depends on UDHCPD || UDHCPC help - At the cost of ~300 bytes, enables -P port option. - This feature is typically not needed. + At the cost of ~300 bytes, enables -P port option. + This feature is typically not needed. config UDHCP_DEBUG int "Maximum verbosity level for udhcp applets (0..9)" @@ -116,28 +116,28 @@ config UDHCP_DEBUG range 0 9 depends on UDHCPD || UDHCPC || DHCPRELAY help - Verbosity can be increased with multiple -v options. - This option controls how high it can be cranked up. + Verbosity can be increased with multiple -v options. + This option controls how high it can be cranked up. - Bigger values result in bigger code. Levels above 1 - are very verbose and useful for debugging only. + Bigger values result in bigger code. Levels above 1 + are very verbose and useful for debugging only. config FEATURE_UDHCP_RFC3397 bool "Support RFC3397 domain search (experimental)" default y depends on UDHCPD || UDHCPC help - If selected, both client and server will support passing of domain - search lists via option 119, specified in RFC 3397, - and SIP servers option 120, specified in RFC 3361. + If selected, both client and server will support passing of domain + search lists via option 119, specified in RFC 3397, + and SIP servers option 120, specified in RFC 3361. config FEATURE_UDHCP_8021Q bool "Support 802.1Q VLAN parameters" default y depends on UDHCPD || UDHCPC help - If selected, both client and server will support passing of VLAN - ID and priority via options 132 and 133 as per 802.1Q. + If selected, both client and server will support passing of VLAN + ID and priority via options 132 and 133 as per 802.1Q. config UDHCPC_SLACK_FOR_BUGGY_SERVERS int "DHCP options slack buffer size" @@ -145,19 +145,19 @@ config UDHCPC_SLACK_FOR_BUGGY_SERVERS range 0 924 depends on UDHCPD || UDHCPC help - Some buggy DHCP servers send DHCP offer packets with option - field larger than we expect (which might also be considered a - buffer overflow attempt). These packets are normally discarded. - If circumstances beyond your control force you to support such - servers, this may help. The upper limit (924) makes dhcpc accept - even 1500 byte packets (maximum-sized ethernet packets). - - This option does not make dhcp[cd] emit non-standard - sized packets. - - Known buggy DHCP servers: - 3Com OfficeConnect Remote 812 ADSL Router: - seems to confuse maximum allowed UDP packet size with - maximum size of entire IP packet, and sends packets which are - 28 bytes too large. - Seednet (ISP) VDSL: sends packets 2 bytes too large. + Some buggy DHCP servers send DHCP offer packets with option + field larger than we expect (which might also be considered a + buffer overflow attempt). These packets are normally discarded. + If circumstances beyond your control force you to support such + servers, this may help. The upper limit (924) makes dhcpc accept + even 1500 byte packets (maximum-sized ethernet packets). + + This option does not make dhcp[cd] emit non-standard + sized packets. + + Known buggy DHCP servers: + 3Com OfficeConnect Remote 812 ADSL Router: + seems to confuse maximum allowed UDP packet size with + maximum size of entire IP packet, and sends packets + which are 28 bytes too large. + Seednet (ISP) VDSL: sends packets 2 bytes too large. diff --git a/networking/udhcp/d6_dhcpc.c b/networking/udhcp/d6_dhcpc.c index f6d3fb9..ebf7934 100644 --- a/networking/udhcp/d6_dhcpc.c +++ b/networking/udhcp/d6_dhcpc.c @@ -14,31 +14,31 @@ //config: default n # not yet ready //config: depends on FEATURE_IPV6 //config: help -//config: udhcpc6 is a DHCPv6 client +//config: udhcpc6 is a DHCPv6 client //config: //config:config FEATURE_UDHCPC6_RFC3646 //config: bool "Support RFC 3646 (DNS server and search list)" //config: default y //config: depends on UDHCPC6 //config: help -//config: List of DNS servers and domain search list can be requested with -//config: "-O dns" and "-O search". If server gives these values, -//config: they will be set in environment variables "dns" and "search". +//config: List of DNS servers and domain search list can be requested with +//config: "-O dns" and "-O search". If server gives these values, +//config: they will be set in environment variables "dns" and "search". //config: //config:config FEATURE_UDHCPC6_RFC4704 //config: bool "Support RFC 4704 (Client FQDN)" //config: default y //config: depends on UDHCPC6 //config: help -//config: You can request FQDN to be given by server using "-O fqdn". +//config: You can request FQDN to be given by server using "-O fqdn". //config: //config:config FEATURE_UDHCPC6_RFC4833 //config: bool "Support RFC 4833 (Timezones)" //config: default y //config: depends on UDHCPC6 //config: help -//config: You can request POSIX timezone with "-O tz" and timezone name -//config: with "-O timezone". +//config: You can request POSIX timezone with "-O tz" and timezone name +//config: with "-O timezone". //applet:IF_UDHCPC6(APPLET(udhcpc6, BB_DIR_USR_BIN, BB_SUID_DROP)) |