mirror of
https://github.com/Telecominfraproject/wlan-ap.git
synced 2025-10-29 17:42:41 +00:00
15429f39d8
Support multiple ssid <-> upstream bindings Fixes: WIFI-15125 Signed-off-by: Kumiko18 <alex18_huang@accton.com>
77 lines
1.6 KiB
C
77 lines
1.6 KiB
C
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <netinet/in.h>
|
|
|
|
#define LEN_ESSID 32
|
|
#define LEN_BSSID 12
|
|
#define LEN_IFACE 15
|
|
#define LEN_FREQ 3
|
|
|
|
#define MAX_INTERFACES 48
|
|
#define MAX_PORTS 8
|
|
|
|
#define CONFIG_PATH "/etc/config/dhcpinject"
|
|
|
|
#define IWINFO_CMD "iwinfo | grep %s -A2 | grep '.*Channel:.*\\(%s\\..*\\) GHz' -B2 | awk '/ESSID/{print $1} /Access Point/{gsub(/:/, \"\", $3); print $3}'"
|
|
|
|
static pcap_t *handle = NULL;
|
|
|
|
static int iface_map_size = 0;
|
|
struct iface_info *iface_map = NULL;
|
|
static int port_map_size = 0;
|
|
struct port_info *port_map = NULL;
|
|
|
|
// DHCP header structure
|
|
struct dhcp_packet {
|
|
uint8_t op;
|
|
uint8_t htype;
|
|
uint8_t hlen;
|
|
uint8_t hops;
|
|
uint32_t xid;
|
|
uint16_t secs;
|
|
uint16_t flags;
|
|
struct in_addr ciaddr;
|
|
struct in_addr yiaddr;
|
|
struct in_addr siaddr;
|
|
struct in_addr giaddr;
|
|
uint8_t chaddr[16];
|
|
char sname[64];
|
|
char file[128];
|
|
uint32_t magic;
|
|
uint8_t options[];
|
|
};
|
|
|
|
// up4094v4094
|
|
|
|
// Structure to hold interface info
|
|
struct iface_info {
|
|
char iface[LEN_IFACE + 1];
|
|
char essid[LEN_ESSID + 1];
|
|
char bssid[LEN_BSSID + 1];
|
|
char upstream[LEN_IFACE + 1];
|
|
char frequency[4];
|
|
int serial;
|
|
};
|
|
|
|
struct port_info {
|
|
char name[LEN_IFACE + 1];
|
|
int sock;
|
|
int ifindex;
|
|
};
|
|
|
|
// VLAN header structure
|
|
struct vlan_hdr {
|
|
__be16 h_vlan_TCI; // VLAN Tag Control Information
|
|
__be16 h_vlan_encapsulated_proto; // Encapsulated protocol
|
|
};
|
|
|
|
char *get_hostname() {
|
|
static char hostname[256];
|
|
if (gethostname(hostname, sizeof(hostname)) != 0) {
|
|
strcpy(hostname, "unknown");
|
|
}
|
|
return hostname;
|
|
}
|