mirror of
https://github.com/ecki/net-tools.git
synced 2025-04-12 02:49:32 +00:00
5c9e1e7615
Not all sockaddr structs have the same alignment. Instead, it depends on the fields contained in it. The way net-tools has written things though, it accepts sockaddr* everywhere which has 16bit alignment, even though it will cast it to other sockaddr types that have higher alignment. For example, `route` can crash on alpha because it declares sockaddr on the stack, but then casts it up to sockaddr_in6 (which has 32bits). It's also bad storage wise as we might try to cast the sockaddr to a type that is larger than sockaddr which means clobbering the stack. Instead, lets rewrite all the APIs to take a sockaddr_storage. This is guaranteed to have both the maximum alignment and size requirements for all other sockaddr types. Now we can safely cast that pointer to any other sockaddr type and not worry about it. It also has the nice effect of deleting a lot of casts in a lot of places when we only need the type of family. The vast majority of changes here are mechanical. There are a few places where we have to memcpy between a dedicated sockaddr_storage and a smaller struct because we're using an external embedded type (like arpreq). URL: https://bugs.gentoo.org/558436
126 lines
4.1 KiB
C
126 lines
4.1 KiB
C
struct user_net_device_stats {
|
|
unsigned long long rx_packets; /* total packets received */
|
|
unsigned long long tx_packets; /* total packets transmitted */
|
|
unsigned long long rx_bytes; /* total bytes received */
|
|
unsigned long long tx_bytes; /* total bytes transmitted */
|
|
unsigned long rx_errors; /* bad packets received */
|
|
unsigned long tx_errors; /* packet transmit problems */
|
|
unsigned long rx_dropped; /* no space in linux buffers */
|
|
unsigned long tx_dropped; /* no space available in linux */
|
|
unsigned long rx_multicast; /* multicast packets received */
|
|
unsigned long rx_compressed;
|
|
unsigned long tx_compressed;
|
|
unsigned long collisions;
|
|
|
|
/* detailed rx_errors: */
|
|
unsigned long rx_length_errors;
|
|
unsigned long rx_over_errors; /* receiver ring buff overflow */
|
|
unsigned long rx_crc_errors; /* recved pkt with crc error */
|
|
unsigned long rx_frame_errors; /* recv'd frame alignment error */
|
|
unsigned long rx_fifo_errors; /* recv'r fifo overrun */
|
|
unsigned long rx_missed_errors; /* receiver missed packet */
|
|
/* detailed tx_errors */
|
|
unsigned long tx_aborted_errors;
|
|
unsigned long tx_carrier_errors;
|
|
unsigned long tx_fifo_errors;
|
|
unsigned long tx_heartbeat_errors;
|
|
unsigned long tx_window_errors;
|
|
};
|
|
|
|
struct interface {
|
|
struct interface *next, *prev;
|
|
char name[IFNAMSIZ]; /* interface name */
|
|
short type; /* if type */
|
|
short flags; /* various flags */
|
|
int mtu; /* MTU value */
|
|
int tx_queue_len; /* transmit queue length */
|
|
struct ifmap map; /* hardware setup */
|
|
union {
|
|
struct sockaddr_storage addr_sas;
|
|
struct sockaddr addr; /* IP address */
|
|
};
|
|
union {
|
|
struct sockaddr_storage dstaddr_sas;
|
|
struct sockaddr dstaddr; /* P-P IP address */
|
|
};
|
|
union {
|
|
struct sockaddr_storage broadaddr_sas;
|
|
struct sockaddr broadaddr; /* IP broadcast address */
|
|
};
|
|
union {
|
|
struct sockaddr_storage netmask_sas;
|
|
struct sockaddr netmask; /* IP network mask */
|
|
};
|
|
union {
|
|
struct sockaddr_storage ipxaddr_bb_sas;
|
|
struct sockaddr ipxaddr_bb; /* IPX network address */
|
|
};
|
|
union {
|
|
struct sockaddr_storage ipxaddr_sn_sas;
|
|
struct sockaddr ipxaddr_sn; /* IPX network address */
|
|
};
|
|
union {
|
|
struct sockaddr_storage ipxaddr_e3_sas;
|
|
struct sockaddr ipxaddr_e3; /* IPX network address */
|
|
};
|
|
union {
|
|
struct sockaddr_storage ipxaddr_e2_sas;
|
|
struct sockaddr ipxaddr_e2; /* IPX network address */
|
|
};
|
|
union {
|
|
struct sockaddr_storage ddpaddr_sas;
|
|
struct sockaddr ddpaddr; /* Appletalk DDP address */
|
|
};
|
|
union {
|
|
struct sockaddr_storage ecaddr_sas;
|
|
struct sockaddr ecaddr; /* Econet address */
|
|
};
|
|
int has_ip;
|
|
int has_ipx_bb;
|
|
int has_ipx_sn;
|
|
int has_ipx_e3;
|
|
int has_ipx_e2;
|
|
int has_ax25;
|
|
int has_ddp;
|
|
int has_econet;
|
|
char hwaddr[32]; /* HW address */
|
|
int statistics_valid;
|
|
struct user_net_device_stats stats; /* statistics */
|
|
int keepalive; /* keepalive value for SLIP */
|
|
int outfill; /* outfill value for SLIP */
|
|
};
|
|
|
|
extern int if_fetch(struct interface *ife);
|
|
|
|
extern int for_all_interfaces(int (*)(struct interface *, void *), void *);
|
|
extern int if_cache_free(void);
|
|
extern struct interface *lookup_interface(const char *name);
|
|
extern int if_readlist(void);
|
|
|
|
extern int do_if_fetch(struct interface *ife);
|
|
extern int do_if_print(struct interface *ife, void *cookie);
|
|
|
|
extern void ife_print(struct interface *ptr);
|
|
|
|
extern int ife_short;
|
|
|
|
extern const char *if_port_text[][4];
|
|
|
|
/* Defines for poor glibc2.0 users, the feature check is done at runtime */
|
|
#if !defined(SIOCSIFTXQLEN)
|
|
#define SIOCSIFTXQLEN 0x8943
|
|
#define SIOCGIFTXQLEN 0x8942
|
|
#endif
|
|
|
|
#if !defined(ifr_qlen)
|
|
/* Actually it is ifru_ivalue, but that is not present in 2.0 kernel headers */
|
|
#define ifr_qlen ifr_ifru.ifru_mtu
|
|
#endif
|
|
|
|
#define HAVE_TXQUEUELEN
|
|
|
|
#define HAVE_DYNAMIC
|
|
#ifndef IFF_DYNAMIC
|
|
#define IFF_DYNAMIC 0x8000 /* dialup device with changing addresses */
|
|
#endif
|