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authorSamuel Mendoza-Jonas <sam@mendozajonas.com>2018-05-14 04:29:12 (GMT)
committerDenys Vlasenko <vda.linux@googlemail.com>2018-05-14 08:46:00 (GMT)
commit23cbd7d5bbbf8f5fb65d1ff3a92323f2bb300f63 (patch)
tree67e6d49b0ef4870192cb63837e248ba666ff452b
parentbcdec1a8b8bf9fb3ea4de96d153b203e12e035fd (diff)
downloadbusybox-23cbd7d5bbbf8f5fb65d1ff3a92323f2bb300f63.tar.gz
busybox-23cbd7d5bbbf8f5fb65d1ff3a92323f2bb300f63.tar.bz2
udhcpc6: add DHCPv6 boot options
Add support for 'bootfile-url' and 'bootfile-params' as defined by RFC5970 "DHCPv6 Options for Network Boot". Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--networking/udhcp/d6_common.h3
-rw-r--r--networking/udhcp/d6_dhcpc.c25
2 files changed, 28 insertions, 0 deletions
diff --git a/networking/udhcp/d6_common.h b/networking/udhcp/d6_common.h
index e9c0397..d0506e2 100644
--- a/networking/udhcp/d6_common.h
+++ b/networking/udhcp/d6_common.h
@@ -128,6 +128,9 @@ struct d6_option {
#define D6_OPT_TZ_POSIX 41
#define D6_OPT_TZ_NAME 42
+#define D6_OPT_BOOT_URL 59
+#define D6_OPT_BOOT_PARAM 60
+
/*** Other shared functions ***/
struct client6_data_t {
diff --git a/networking/udhcp/d6_dhcpc.c b/networking/udhcp/d6_dhcpc.c
index fa1568b..f837bd5 100644
--- a/networking/udhcp/d6_dhcpc.c
+++ b/networking/udhcp/d6_dhcpc.c
@@ -38,6 +38,14 @@
//config: help
//config: You can request POSIX timezone with "-O tz" and timezone name
//config: with "-O timezone".
+//config:
+//config:config FEATURE_UDHCPC6_RFC5970
+//config: bool "Support RFC 5970 (Network Boot)"
+//config: default y
+//config: depends on UDHCPC6
+//config: help
+//config: You can request bootfile-url with "-O bootfile_url" and
+//config: bootfile-params with "-O bootfile_params".
//applet:IF_UDHCPC6(APPLET(udhcpc6, BB_DIR_USR_BIN, BB_SUID_DROP))
@@ -71,6 +79,10 @@ static const struct dhcp_optflag d6_optflags[] = {
{ OPTION_STRING, D6_OPT_TZ_POSIX },
{ OPTION_STRING, D6_OPT_TZ_NAME },
#endif
+#if ENABLE_FEATURE_UDHCPC6_RFC5970
+ { OPTION_STRING, D6_OPT_BOOT_URL },
+ { OPTION_STRING, D6_OPT_BOOT_PARAM },
+#endif
{ 0, 0 }
};
/* Must match d6_optflags[] order */
@@ -86,6 +98,11 @@ static const char d6_option_strings[] ALIGN1 =
"tz" "\0" /* D6_OPT_TZ_POSIX */
"timezone" "\0" /* D6_OPT_TZ_NAME */
#endif
+#if ENABLE_FEATURE_UDHCPC6_RFC5970
+ "bootfile_url" "\0" /* D6_OPT_BOOT_URL */
+ "bootfile_param" "\0" /* D6_OPT_BOOT_PARAM */
+#endif
+
"\0";
#if ENABLE_LONG_OPTS
@@ -382,6 +399,14 @@ static void option_to_env(uint8_t *option, uint8_t *option_end)
*new_env() = xasprintf("tz_name=%.*s", (int)option[3], (char*)option + 4);
break;
#endif
+ case D6_OPT_BOOT_URL:
+ case D6_OPT_BOOT_PARAM:
+ {
+ char *tmp = string_option_to_env(option, option_end);
+ if (tmp)
+ *new_env() = tmp;
+ break;
+ }
}
len_m4 -= 4 + option[3];
option += 4 + option[3];