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List:       busybox
Subject:    [PATCH] udhcp: add 100 and 101 dhcp options for ipv4
From:       Antoine Girard-Vallée <antoine.girard-vallee () savoirfairelinux
Date:       2019-03-08 14:24:42
Message-ID: 20190308142442.7579-1-antoine.girard-vallee () savoirfairelinux ! com
[Download RAW message or body]

Support for the IEEE timezone string and timezone database strings (100
and 101 options respectively) is added for ipv4, conforming to RFC-4833.

The two options are passed to hook scripts in the variables tzstr and
tzdbstr.

Signed-off-by: Antoine Girard-Vallée <antoine.girard-vallee@savoirfairelinux.com>
---
 networking/udhcp/common.c | 4 ++++
 networking/udhcp/common.h | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/networking/udhcp/common.c b/networking/udhcp/common.c
index fc4de5716..59cf723ee 100644
--- a/networking/udhcp/common.c
+++ b/networking/udhcp/common.c
@@ -54,6 +54,8 @@ const struct dhcp_optflag dhcp_optflags[] = {
 	{ OPTION_STRING                           , 0x43 }, /* DHCP_BOOT_FILE     */
 //TODO: not a string, but a set of LASCII strings:
 //	{ OPTION_STRING                           , 0x4D }, /* DHCP_USER_CLASS    */
+	{ OPTION_STRING                           , 0x64 }, /* DHCP_PCODE         */
+	{ OPTION_STRING                           , 0x65 }, /* DHCP_TCODE         */
 #if ENABLE_FEATURE_UDHCP_RFC3397
 	{ OPTION_DNS_STRING | OPTION_LIST         , 0x77 }, /* DHCP_DOMAIN_SEARCH */
 	{ OPTION_SIP_SERVERS                      , 0x78 }, /* DHCP_SIP_SERVERS   */
@@ -121,6 +123,8 @@ const char dhcp_option_strings[] ALIGN1 =
 	"tftp" "\0"             /* DHCP_TFTP_SERVER_NAME*/
 	"bootfile" "\0"         /* DHCP_BOOT_FILE       */
 //	"userclass" "\0"        /* DHCP_USER_CLASS      */
+	"tzstr" "\0"            /* DHCP_PCODE           */
+	"tzdbstr" "\0"          /* DHCP_TCODE           */
 #if ENABLE_FEATURE_UDHCP_RFC3397
 	"search" "\0"           /* DHCP_DOMAIN_SEARCH   */
 // doesn't work in udhcpd.conf since OPTION_SIP_SERVERS
diff --git a/networking/udhcp/common.h b/networking/udhcp/common.h
index b68f9394e..b036dc54a 100644
--- a/networking/udhcp/common.h
+++ b/networking/udhcp/common.h
@@ -148,6 +148,8 @@ enum {
 //#define DHCP_TFTP_SERVER_NAME 0x42 /* 66: same as 'sname' field */
 //#define DHCP_BOOT_FILE        0x43 /* 67: same as 'file' field */
 //#define DHCP_USER_CLASS       0x4d /* 77: RFC 3004. set of LASCII strings. "I am a printer" etc */
+#define DHCP_PCODE              0x64 /* 100: RFC 4833. IEEE 1003.1 TZ string*/
+#define DHCP_TCODE              0x65 /* 101: RFC 4833. Reference to the TZ database string*/
 #define DHCP_FQDN               0x51 /* 81: client asks to update DNS to map its FQDN to its new IP */
 //#define DHCP_DOMAIN_SEARCH    0x77 /* 119: RFC 3397. set of ASCIZ string, DNS-style compressed */
 //#define DHCP_SIP_SERVERS      0x78 /* 120: RFC 3361. flag byte, then: 0: domain names, 1: IP addrs */
-- 
2.20.1

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