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udhcpc: add support for DHCP option 212 (RFC 5969)

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The patch is from OpenWRT people.

function                                             old     new   delta
xmalloc_optname_optval                               637     874    +237
dhcp_option_strings                                  237     243      +6
dhcp_optflags                                         68      70      +2
len_of_option_as_string                               12      13      +1
dhcp_option_lengths                                   12      13      +1
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 5/0 up/down: 247/0)             Total: 247 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2011-10-19 22:40:35 +02:00
parent 2ea73b513d
commit 1f56e51ca1
4 changed files with 84 additions and 4 deletions
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3
networking/udhcp/common.c
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@@ -59,6 +59,7 @@ const struct dhcp_optflag dhcp_optflags[] = {
{ OPTION_U16 , 0x84 }, /* DHCP_VLAN_ID */
{ OPTION_U8 , 0x85 }, /* DHCP_VLAN_PRIORITY */
#endif
{ OPTION_6RD , 0xd4 }, /* DHCP_6RD */
{ OPTION_STATIC_ROUTES , 0xf9 }, /* DHCP_MS_STATIC_ROUTES */
{ OPTION_STRING , 0xfc }, /* DHCP_WPAD */
@@ -126,6 +127,7 @@ const char dhcp_option_strings[] ALIGN1 =
"vlanid" "\0" /* DHCP_VLAN_ID */
"vlanpriority" "\0"/* DHCP_VLAN_PRIORITY */
#endif
"ip6rd" "\0" /* DHCP_6RD */
"msstaticroutes""\0"/* DHCP_MS_STATIC_ROUTES */
"wpad" "\0" /* DHCP_WPAD */
;
@@ -154,6 +156,7 @@ const uint8_t dhcp_option_lengths[] ALIGN1 = {
[OPTION_S32] = 4,
/* Just like OPTION_STRING, we use minimum length here */
[OPTION_STATIC_ROUTES] = 5,
[OPTION_6RD] = 22, /* ignored by udhcp_str2optset */
};