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Merge branch 'bugfix/dhcp_opts_vsi_vci' into 'master'

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lwip: Fix receiving of DHCP vendor info (GitHub PR)

Closes IDFGH-10591

See merge request espressif/esp-idf!25043
This commit is contained in:
David Čermák 2023-11-14 22:36:10 +08:00
commit 0d12732b4c
1 changed files with 5 additions and 11 deletions
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16
components/lwip/port/hooks/lwip_default_hooks.c
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@ -124,11 +124,11 @@ ip4_route_src_hook(const ip4_addr_t *src,const ip4_addr_t *dest)
#if LWIP_DHCP_ENABLE_VENDOR_SPEC_IDS
#define DHCP_OPTION_VSI 43
#define DHCP_OPTION_VCI 60
#define DHCP_OPTION_VSI_MAX 16
#define DHCP_OPTION_VSI_MAX 64
static u8_t vendor_class_len = 0;
static char *vendor_class_buf = NULL;
static u32_t dhcp_option_vsi[DHCP_OPTION_VSI_MAX] = {0};
static u8_t dhcp_option_vsi[DHCP_OPTION_VSI_MAX];
void dhcp_free_vendor_class_identifier(void)
{
@ -209,16 +209,10 @@ void dhcp_parse_extra_opts(struct dhcp *dhcp, uint8_t state, uint8_t option, uin
if ((option == DHCP_OPTION_VSI) &&
(state == DHCP_STATE_REBOOTING || state == DHCP_STATE_REBINDING ||
state == DHCP_STATE_RENEWING || state == DHCP_STATE_REQUESTING || state == DHCP_STATE_SELECTING)) {
u8_t n;
u32_t value;
u16_t copy_len;
for (n = 0; n < DHCP_OPTION_VSI_MAX && len > 0; n++) {
copy_len = LWIP_MIN(len, 4);
LWIP_ERROR("dhcp_parse_extra_opts(): extracting VSI option failed",
pbuf_copy_partial(p, &value, copy_len, offset) == copy_len, return;);
dhcp_option_vsi[n] = lwip_htonl(value);
len -= copy_len;
}
copy_len = LWIP_MIN(len, sizeof(dhcp_option_vsi));
LWIP_ERROR("dhcp_parse_extra_opts(): extracting VSI option failed",
pbuf_copy_partial(p, &dhcp_option_vsi, copy_len, offset) == copy_len, return;);
} /* DHCP_OPTION_VSI */
#endif /* LWIP_DHCP_ENABLE_VENDOR_SPEC_IDS */
}