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udhcpc6: add PXELINUX options

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Add support for the PXELINUX options 209 ("ConfigFile") and 210
("PathPrefix") in the DHCPv6 client.

See also: RFC5071, "Dynamic Host Configuration Protocol Options Used by
PXELINUX".

Signed-off-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Samuel Mendoza-Jonas
2018-05-14 14:29:13 +10:00
committed by Denys Vlasenko
parent 23cbd7d5bb
commit 30f4d52ed1
1 changed files with 6 additions and 1 deletions
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7
networking/udhcp/d6_dhcpc.c
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@@ -83,6 +83,8 @@ static const struct dhcp_optflag d6_optflags[] = {
{ OPTION_STRING, D6_OPT_BOOT_URL },
{ OPTION_STRING, D6_OPT_BOOT_PARAM },
#endif
{ OPTION_STRING, 0xd1 }, /* DHCP_PXE_CONF_FILE */
{ OPTION_STRING, 0xd2 }, /* DHCP_PXE_PATH_PREFIX */
{ 0, 0 }
};
/* Must match d6_optflags[] order */
@@ -102,7 +104,8 @@ static const char d6_option_strings[] ALIGN1 =
"bootfile_url" "\0" /* D6_OPT_BOOT_URL */
"bootfile_param" "\0" /* D6_OPT_BOOT_PARAM */
#endif
"pxeconffile" "\0" /* DHCP_PXE_CONF_FILE */
"pxepathprefix" "\0" /* DHCP_PXE_PATH_PREFIX */
"\0";
#if ENABLE_LONG_OPTS
@@ -401,6 +404,8 @@ static void option_to_env(uint8_t *option, uint8_t *option_end)
#endif
case D6_OPT_BOOT_URL:
case D6_OPT_BOOT_PARAM:
case 0xd1: /* DHCP_PXE_CONF_FILE */
case 0xd2: /* DHCP_PXE_PATH_PREFIX */
{
char *tmp = string_option_to_env(option, option_end);
if (tmp)