busybox/networking/udhcp/static_leases.c
Denys Vlasenko 8f2e99c813 udhcp: get rid of bb_info_msg()
function                                             old     new   delta
udhcpd_main                                         1501    1531     +30
d6_recv_raw_packet                                   251     264     +13
perform_d6_release                                   188     198     +10
udhcpc6_main                                        2443    2449      +6
udhcp_recv_raw_packet                                582     588      +6
udhcp_recv_kernel_packet                             132     138      +6
send_d6_renew                                        140     146      +6
d6_recv_kernel_packet                                118     124      +6
send_renew                                            77      82      +5
send_discover                                         85      90      +5
send_decline                                          84      89      +5
send_d6_select                                        97     102      +5
send_d6_discover                                     174     179      +5
perform_release                                      167     172      +5
count_lines                                           72      74      +2
udhcpc_main                                         2836    2837      +1
bb_info_msg                                          125       -    -125
------------------------------------------------------------------------------
(add/remove: 0/2 grow/shrink: 17/4 up/down: 117/-180)         Total: -63 bytes
   text	   data	    bss	    dec	    hex	filename
 924935	    906	  17160	 943001	  e6399	busybox_old
 924736	    906	  17160	 942802	  e62d2	busybox_unstripped

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2016-03-30 18:41:23 +02:00

78 lines
1.8 KiB
C

/* vi: set sw=4 ts=4: */
/*
* Storing and retrieving data for static leases
*
* Wade Berrier <wberrier@myrealbox.com> September 2004
*
* Licensed under GPLv2, see file LICENSE in this source tree.
*/
#include "common.h"
#include "dhcpd.h"
/* Takes the address of the pointer to the static_leases linked list,
* address to a 6 byte mac address,
* 4 byte IP address */
void FAST_FUNC add_static_lease(struct static_lease **st_lease_pp,
uint8_t *mac,
uint32_t nip)
{
struct static_lease *st_lease;
/* Find the tail of the list */
while ((st_lease = *st_lease_pp) != NULL) {
st_lease_pp = &st_lease->next;
}
/* Add new node */
*st_lease_pp = st_lease = xzalloc(sizeof(*st_lease));
memcpy(st_lease->mac, mac, 6);
st_lease->nip = nip;
/*st_lease->next = NULL;*/
}
/* Find static lease IP by mac */
uint32_t FAST_FUNC get_static_nip_by_mac(struct static_lease *st_lease, void *mac)
{
while (st_lease) {
if (memcmp(st_lease->mac, mac, 6) == 0)
return st_lease->nip;
st_lease = st_lease->next;
}
return 0;
}
/* Check to see if an IP is reserved as a static IP */
int FAST_FUNC is_nip_reserved(struct static_lease *st_lease, uint32_t nip)
{
while (st_lease) {
if (st_lease->nip == nip)
return 1;
st_lease = st_lease->next;
}
return 0;
}
#if defined CONFIG_UDHCP_DEBUG && CONFIG_UDHCP_DEBUG >= 2
/* Print out static leases just to check what's going on */
/* Takes the address of the pointer to the static_leases linked list */
void FAST_FUNC log_static_leases(struct static_lease **st_lease_pp)
{
struct static_lease *cur;
if (dhcp_verbose < 2)
return;
cur = *st_lease_pp;
while (cur) {
bb_error_msg("static lease: mac:%02x:%02x:%02x:%02x:%02x:%02x nip:%x",
cur->mac[0], cur->mac[1], cur->mac[2],
cur->mac[3], cur->mac[4], cur->mac[5],
cur->nip
);
cur = cur->next;
}
}
#endif