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#define UNIX_SOCK_MAX 100
#define UNIX_SOCK_PATH "/tmp/passt_%i.socket"
/**
* struct tap_msg - Generic message descriptor for arrays of messages
* @start: Pointer to message start
* @l4_start: Pointer to L4 header
* @len: Message length, with L2 headers
* @l4_len: Message length, with L4 headers
*/
struct tap_msg {
char *start;
char *l4h;
size_t len;
size_t l4_len;
};
#define SOCK_BUF_BYTES (ETH_MAX_MTU * 4)
#include "icmp.h"
#include "tcp.h"
#include "udp.h"
#include <resolv.h> /* For MAXNS below */
struct fqdn {
char n[NS_MAXDNAME];
};
#include <net/if.h>
/**
* struct ctx - Execution context
* @epollfd: file descriptor for epoll instance
* @fd_unix: AF_UNIX socket for tap file descriptor
* @v4: Enable IPv4 transport
* @mac: Host MAC address
* @mac_guest: Guest MAC address
* @addr4: IPv4 address for external, routable interface
* @addr4_seen: Latest IPv4 address seen as source from tap
* @mask4: IPv4 netmask, network order
* @gw4: Default IPv4 gateway, network order
* @dns4: IPv4 DNS addresses, zero-terminated, network order
* @dns_search: DNS search list
* @v6: Enable IPv6 transport
* @addr6: IPv6 address for external, routable interface
* @addr6_seen: Latest IPv6 global/site address seen as source from tap
* @addr6_ll_seen: Latest IPv6 link-local address seen as source from tap
* @gw6: Default IPv6 gateway
* @dns4: IPv4 DNS addresses, zero-terminated
* @ifn: Name of routable interface
*/
struct ctx {
int epollfd;
int fd_unix;
unsigned char mac[ETH_ALEN];
unsigned char mac_guest[ETH_ALEN];
int v4;
uint32_t addr4;
uint32_t addr4_seen;
uint32_t mask4;
uint32_t gw4;
uint32_t dns4[MAXNS + 1];
struct fqdn dns_search[MAXDNSRCH];
int v6;
struct in6_addr addr6;
struct in6_addr addr6_seen;
struct in6_addr addr6_ll_seen;
struct in6_addr gw6;
struct in6_addr dns6[MAXNS + 1];
char ifn[IF_NAMESIZE];
struct icmp_ctx icmp;
struct tcp_ctx tcp;
struct udp_ctx udp;
};
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