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Add dhcp option 61

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If OPTION 61 is not included during DHCP lease renewal, some routers
will close the link.
This commit is contained in:
Jacques_Zhao
2025-02-17 10:27:55 +08:00
parent 2c9c531f0a
commit 424a1d02c3
1 changed files with 21 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/core/ipv4/dhcp.c
+21 -3
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@@ -1339,7 +1339,13 @@ dhcp_renew(struct netif *netif)
#if LWIP_NETIF_HOSTNAME
options_out_len = dhcp_option_hostname(options_out_len, msg_out->options, netif);
#endif /* LWIP_NETIF_HOSTNAME */
#if ESP_DHCP
options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_CLIENT_ID, DHCP_OPTION_CLIENT_ID_MAC_LEN);
options_out_len = dhcp_option_byte(options_out_len, msg_out->options, DHCP_OPTION_CLIENT_ID_MAC);
for (i = 0; i < netif->hwaddr_len; i++) {
options_out_len = dhcp_option_byte(options_out_len, msg_out->options, netif->hwaddr[i]);
}
#endif/* ESP_DHCP */
LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, DHCP_STATE_RENEWING, msg_out, DHCP_REQUEST, &options_out_len);
dhcp_option_trailer(options_out_len, msg_out->options, p_out);
@@ -1394,7 +1400,13 @@ dhcp_rebind(struct netif *netif)
#if LWIP_NETIF_HOSTNAME
options_out_len = dhcp_option_hostname(options_out_len, msg_out->options, netif);
#endif /* LWIP_NETIF_HOSTNAME */
#if ESP_DHCP
options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_CLIENT_ID, DHCP_OPTION_CLIENT_ID_MAC_LEN);
options_out_len = dhcp_option_byte(options_out_len, msg_out->options, DHCP_OPTION_CLIENT_ID_MAC);
for (i = 0; i < netif->hwaddr_len; i++) {
options_out_len = dhcp_option_byte(options_out_len, msg_out->options, netif->hwaddr[i]);
}
#endif/* ESP_DHCP */
LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, DHCP_STATE_REBINDING, msg_out, DHCP_DISCOVER, &options_out_len);
dhcp_option_trailer(options_out_len, msg_out->options, p_out);
@@ -1451,7 +1463,13 @@ dhcp_reboot(struct netif *netif)
#if LWIP_NETIF_HOSTNAME
options_out_len = dhcp_option_hostname(options_out_len, msg_out->options, netif);
#endif /* LWIP_NETIF_HOSTNAME */
#if ESP_DHCP
options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_CLIENT_ID, DHCP_OPTION_CLIENT_ID_MAC_LEN);
options_out_len = dhcp_option_byte(options_out_len, msg_out->options, DHCP_OPTION_CLIENT_ID_MAC);
for (i = 0; i < netif->hwaddr_len; i++) {
options_out_len = dhcp_option_byte(options_out_len, msg_out->options, netif->hwaddr[i]);
}
#endif/* ESP_DHCP */
LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, DHCP_STATE_REBOOTING, msg_out, DHCP_REQUEST, &options_out_len);
dhcp_option_trailer(options_out_len, msg_out->options, p_out);