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dhcp server:bugfix softap excedes the range of subnet

pull/11147/head
xueyunfei 2022-12-29 15:27:50 +08:00
rodzic 6d09159974
commit 109eec4033
5 zmienionych plików z 47 dodań i 7 usunięć
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3
components/esp_common/src/esp_err_to_name.c
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@ -550,6 +550,9 @@ static const esp_err_msg_t esp_err_msg_table[] = {
# endif
# ifdef ESP_ERR_ESP_NETIF_IP6_ADDR_FAILED
ERR_TBL_IT(ESP_ERR_ESP_NETIF_IP6_ADDR_FAILED), /* 20492 0x500c */
# endif
# ifdef ESP_ERR_ESP_NETIF_DHCPS_START_FAILED
ERR_TBL_IT(ESP_ERR_ESP_NETIF_DHCPS_START_FAILED), /* 20493 0x500d */
# endif
// components/esp_common/include/esp_err.h
# ifdef ESP_ERR_FLASH_BASE

1
components/esp_netif/include/esp_netif_types.h
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@ -33,6 +33,7 @@ extern "C" {
#define ESP_ERR_ESP_NETIF_DNS_NOT_CONFIGURED ESP_ERR_ESP_NETIF_BASE + 0x0A
#define ESP_ERR_ESP_NETIF_MLD6_FAILED ESP_ERR_ESP_NETIF_BASE + 0x0B
#define ESP_ERR_ESP_NETIF_IP6_ADDR_FAILED ESP_ERR_ESP_NETIF_BASE + 0x0C
#define ESP_ERR_ESP_NETIF_DHCPS_START_FAILED ESP_ERR_ESP_NETIF_BASE + 0x0D
/** @brief Type of esp_netif_object server */

12
components/esp_netif/lwip/esp_netif_lwip.c
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@ -734,7 +734,11 @@ static esp_err_t esp_netif_start_api(esp_netif_api_msg_t *msg)
memcpy(&lwip_netmask, &default_ip->netmask, sizeof(struct ip4_addr));
dhcps_set_new_lease_cb(esp_netif_dhcps_cb);
dhcps_set_option_info(SUBNET_MASK, (void*)&lwip_netmask, sizeof(lwip_netmask));
dhcps_start(p_netif, lwip_ip);
if (dhcps_start(p_netif, lwip_ip) != ERR_OK) {
ESP_LOGE(TAG, "DHCP server cannot be started");
esp_netif->dhcps_status = ESP_NETIF_DHCP_INIT;
return ESP_ERR_ESP_NETIF_DHCPS_START_FAILED;
}
esp_netif->dhcps_status = ESP_NETIF_DHCP_STARTED;
ESP_LOGD(TAG, "DHCP server started successfully");
esp_netif_update_default_netif(esp_netif, ESP_NETIF_STARTED);
@ -1146,7 +1150,11 @@ static esp_err_t esp_netif_dhcps_start_api(esp_netif_api_msg_t *msg)
memcpy(&lwip_netmask, &default_ip->netmask, sizeof(struct ip4_addr));
dhcps_set_new_lease_cb(esp_netif_dhcps_cb);
dhcps_set_option_info(SUBNET_MASK, (void*)&lwip_netmask, sizeof(lwip_netmask));
dhcps_start(p_netif, lwip_ip);
if (dhcps_start(p_netif, lwip_ip) != ERR_OK) {
ESP_LOGE(TAG, "DHCP server cannot be started");
esp_netif->dhcps_status = ESP_NETIF_DHCP_INIT;
return ESP_ERR_ESP_NETIF_DHCPS_START_FAILED;
}
esp_netif->dhcps_status = ESP_NETIF_DHCP_STARTED;
ESP_LOGD(TAG, "DHCP server started successfully");
return ESP_OK;

35
components/lwip/apps/dhcpserver/dhcpserver.c
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@ -63,6 +63,21 @@
#define DHCPS_DEBUG 0
#define DHCPS_LOG printf
#define IS_INVALID_SUBNET_MASK(x) (((x-1) | x) != 0xFFFFFFFF)
/* Notes:
* CIDR eliminates the traditional Class A, Class B and Class C addresses.
*/
#define IP_CLASS_HOST_NUM(mask) (0xffffffff & ~mask)
#define DHCP_CHECK_SUBNET_MASK_IP(mask) \
do { \
if (IS_INVALID_SUBNET_MASK(mask)) { \
DHCPS_LOG("dhcps: Illegal subnet mask.\n"); \
return ERR_ARG; \
} \
} while (0)
#define MAX_STATION_NUM CONFIG_LWIP_DHCPS_MAX_STATION_NUM
#define DHCPS_STATE_OFFER 1
@ -1079,6 +1094,8 @@ static void dhcps_poll_set(u32_t ip)
u32_t softap_ip = 0, local_ip = 0;
u32_t start_ip = 0;
u32_t end_ip = 0;
u32_t temp_local_ip = 0;
u32_t host_num = 0;
if (dhcps_poll.enable == true) {
softap_ip = htonl(ip);
@ -1102,17 +1119,22 @@ static void dhcps_poll_set(u32_t ip)
if (dhcps_poll.enable == false) {
local_ip = softap_ip = htonl(ip);
softap_ip &= 0xFFFFFF00;
local_ip &= 0xFF;
temp_local_ip = local_ip &= 0xFF;
if (local_ip >= 0x80) {
local_ip -= DHCPS_MAX_LEASE;
temp_local_ip -= DHCPS_MAX_LEASE;
} else {
local_ip ++;
}
bzero(&dhcps_poll, sizeof(dhcps_poll));
host_num = IP_CLASS_HOST_NUM(htonl(s_dhcps_mask.addr));
if (host_num > DHCPS_MAX_LEASE) {
host_num = DHCPS_MAX_LEASE;
}
dhcps_poll.start_ip.addr = softap_ip | local_ip;
dhcps_poll.end_ip.addr = softap_ip | (local_ip + DHCPS_MAX_LEASE - 1);
dhcps_poll.end_ip.addr = softap_ip | (temp_local_ip + host_num - 1);
dhcps_poll.start_ip.addr = htonl(dhcps_poll.start_ip.addr);
dhcps_poll.end_ip.addr = htonl(dhcps_poll.end_ip.addr);
}
@ -1139,8 +1161,11 @@ void dhcps_set_new_lease_cb(dhcps_cb_t cb)
* : info -- The current ip info
* Returns : none
*******************************************************************************/
void dhcps_start(struct netif *netif, ip4_addr_t ip)
err_t dhcps_start(struct netif *netif, ip4_addr_t ip)
{
if (netif == NULL) {
return ERR_ARG;
}
dhcps_netif = netif;
if (dhcps_netif->dhcps_pcb != NULL) {
@ -1152,6 +1177,7 @@ void dhcps_start(struct netif *netif, ip4_addr_t ip)
if (pcb_dhcps == NULL || ip4_addr_isany_val(ip)) {
printf("dhcps_start(): could not obtain pcb\n");
return ERR_ARG;
}
dhcps_netif->dhcps_pcb = pcb_dhcps;
@ -1159,6 +1185,7 @@ void dhcps_start(struct netif *netif, ip4_addr_t ip)
IP4_ADDR(&broadcast_dhcps, 255, 255, 255, 255);
server_address.addr = ip.addr;
DHCP_CHECK_SUBNET_MASK_IP(htonl(s_dhcps_mask.addr));
dhcps_poll_set(server_address.addr);
client_address_plus.addr = dhcps_poll.start_ip.addr;
@ -1168,7 +1195,7 @@ void dhcps_start(struct netif *netif, ip4_addr_t ip)
#if DHCPS_DEBUG
DHCPS_LOG("dhcps:dhcps_start->udp_recv function Set a receive callback handle_dhcp for UDP_PCB pcb_dhcps\n");
#endif
return ERR_OK;
}
/******************************************************************************

3
components/lwip/include/apps/dhcpserver/dhcpserver.h
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@ -16,6 +16,7 @@
#include "sdkconfig.h"
#include "lwip/ip_addr.h"
#include "lwip/err.h"
#ifdef __cplusplus
extern "C" {
@ -86,7 +87,7 @@ static inline bool dhcps_dns_enabled (dhcps_offer_t offer)
return (offer & OFFER_DNS) != 0;
}
void dhcps_start(struct netif *netif, ip4_addr_t ip);
err_t dhcps_start(struct netif *netif, ip4_addr_t ip);
void dhcps_stop(struct netif *netif);
void *dhcps_option_info(u8_t op_id, u32_t opt_len);
void dhcps_set_option_info(u8_t op_id, void *opt_info, u32_t opt_len);