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dsock.c
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dsock.c
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/*
* dsock.c - Linux socket processing functions for /proc-based lsof
*/
/*
* Copyright 1997 Purdue Research Foundation, West Lafayette, Indiana
* 47907. All rights reserved.
*
* Written by Victor A. Abell
*
* This software is not subject to any license of the American Telephone
* and Telegraph Company or the Regents of the University of California.
*
* Permission is granted to anyone to use this software for any purpose on
* any computer system, and to alter it and redistribute it freely, subject
* to the following restrictions:
*
* 1. Neither the authors nor Purdue University are responsible for any
* consequences of the use of this software.
*
* 2. The origin of this software must not be misrepresented, either by
* explicit claim or by omission. Credit to the authors and Purdue
* University must appear in documentation and sources.
*
* 3. Altered versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 4. This notice may not be removed or altered.
*/
#ifndef lint
static char copyright[] =
"@(#) Copyright 1997 Purdue Research Foundation.\nAll rights reserved.\n";
static char *rcsid = "$Id: dsock.c,v 1.34 2009/03/25 19:22:39 abe Exp $";
#endif
#include "lsof.h"
/*
* Local definitions
*/
#define INOBUCKS 128 /* inode hash bucket count -- must be
* a power of two */
#define INOHASH(ino) ((int)((ino * 31415) >> 3) & (INOBUCKS - 1))
#define TCPUDPHASH(ino) ((int)((ino * 31415) >> 3) & (TcpUdp_bucks - 1))
#define TCPUDP6HASH(ino) ((int)((ino * 31415) >> 3) & (TcpUdp6_bucks - 1))
/*
* Local structures
*/
struct ax25sin { /* AX25 socket information */
char *da; /* destination address */
char *dev_ch; /* device characters */
char *sa; /* source address */
INODETYPE inode;
unsigned long sq, rq; /* send and receive queue values */
unsigned char sqs, rqs; /* send and receive queue states */
int state;
struct ax25sin *next;
};
struct ipxsin { /* IPX socket information */
INODETYPE inode;
char *la; /* local address */
char *ra; /* remote address */
int state;
unsigned long txq, rxq; /* transmit and receive queue values */
struct ipxsin *next;
};
struct packin { /* packet information */
INODETYPE inode;
int ty; /* socket type */
int pr; /* protocol */
struct packin *next;
};
struct rawsin { /* raw socket information */
INODETYPE inode;
char *la; /* local address */
char *ra; /* remote address */
char *sp; /* state characters */
MALLOC_S lal; /* strlen(la) */
MALLOC_S ral; /* strlen(ra) */
MALLOC_S spl; /* strlen(sp) */
struct rawsin *next;
};
struct tcp_udp { /* IPv4 TCP and UDP socket
* information */
INODETYPE inode;
unsigned long faddr, laddr; /* foreign & local IPv6 addresses */
int fport, lport; /* foreign & local ports */
unsigned long txq, rxq; /* transmit & receive queue values */
int proto; /* 0 = TCP, 1 = UDP, 2 = UDPLITE */
int state; /* protocol state */
struct tcp_udp *next;
};
#if defined(HASIPv6)
struct tcp_udp6 { /* IPv6 TCP and UDP socket
* information */
INODETYPE inode;
struct in6_addr faddr, laddr; /* foreign and local IPv6 addresses */
int fport, lport; /* foreign & local ports */
unsigned long txq, rxq; /* transmit & receive queue values */
int proto; /* 0 = TCP, 1 = UDP, 2 = UDPLITE */
int state; /* protocol state */
struct tcp_udp6 *next;
};
#endif /* defined(HASIPv6) */
struct uxsin { /* UNIX socket information */
INODETYPE inode;
char *pcb;
char *path;
unsigned char sb_def;
dev_t sb_dev;
INODETYPE sb_ino;
dev_t sb_rdev;
struct uxsin *next;
};
/*
* Local static values
*/
static char *AX25path = (char *)NULL; /* path to AX25 /proc information */
static struct ax25sin **AX25sin = (struct ax25sin **)NULL;
/* AX25 socket info, hashed by inode */
static char *ax25st[] = {
"LISTENING", /* 0 */
"SABM SENT", /* 1 */
"DISC SENT", /* 2 */
"ESTABLISHED", /* 3 */
"RECOVERY" /* 4 */
};
#define NAX25ST (sizeof(ax25st) / sizeof(char *))
static char *Ipxpath = (char *)NULL; /* path to IPX /proc information */
static struct ipxsin **Ipxsin = (struct ipxsin **)NULL;
/* IPX socket info, hashed by inode */
static struct packin **Packin = (struct packin **)NULL;
/* packet info, hashed by inode */
static char *Packpath = (char *)NULL; /* path to packer /proc information */
struct packpr { /* packet protocol conversions */
int pr; /* protocol number */
char *nm; /* protocol name */
} static Packpr[] = {
#if defined(ETH_P_LOOP)
{ ETH_P_LOOP, "LOOP" },
#endif /* defined(ETH_P_LOOP) */
#if defined(ETH_P_PUP)
{ ETH_P_PUP, "PUP" },
#endif /* defined(ETH_P_PUP) */
#if defined(ETH_P_PUPAT)
{ ETH_P_PUPAT, "PUPAT" },
#endif /* defined(ETH_P_PUPAT) */
#if defined(ETH_P_IP)
{ ETH_P_IP, "IP" },
#endif /* defined(ETH_P_IP) */
#if defined(ETH_P_X25)
{ ETH_P_X25, "X25" },
#endif /* defined(ETH_P_X25) */
#if defined(ETH_P_ARP)
{ ETH_P_ARP, "ARP" },
#endif /* defined(ETH_P_ARP) */
#if defined(ETH_P_BPQ)
{ ETH_P_BPQ, "BPQ" },
#endif /* defined(ETH_P_BPQ) */
#if defined(ETH_P_IEEEPUP)
{ ETH_P_IEEEPUP, "I3EPUP" },
#endif /* defined(ETH_P_IEEEPUP) */
#if defined(ETH_P_IEEEPUPAT)
{ ETH_P_IEEEPUPAT, "I3EPUPA" },
#endif /* defined(ETH_P_IEEEPUPAT) */
#if defined(ETH_P_DEC)
{ ETH_P_DEC, "DEC" },
#endif /* defined(ETH_P_DEC) */
#if defined(ETH_P_DNA_DL)
{ ETH_P_DNA_DL, "DNA_DL" },
#endif /* defined(ETH_P_DNA_DL) */
#if defined(ETH_P_DNA_RC)
{ ETH_P_DNA_RC, "DNA_RC" },
#endif /* defined(ETH_P_DNA_RC) */
#if defined(ETH_P_DNA_RT)
{ ETH_P_DNA_RT, "DNA_RT" },
#endif /* defined(ETH_P_DNA_RT) */
#if defined(ETH_P_LAT)
{ ETH_P_LAT, "LAT" },
#endif /* defined(ETH_P_LAT) */
#if defined(ETH_P_DIAG)
{ ETH_P_DIAG, "DIAG" },
#endif /* defined(ETH_P_DIAG) */
#if defined(ETH_P_CUST)
{ ETH_P_CUST, "CUST" },
#endif /* defined(ETH_P_CUST) */
#if defined(ETH_P_SCA)
{ ETH_P_SCA, "SCA" },
#endif /* defined(ETH_P_SCA) */
#if defined(ETH_P_RARP)
{ ETH_P_RARP, "RARP" },
#endif /* defined(ETH_P_RARP) */
#if defined(ETH_P_ATALK)
{ ETH_P_ATALK, "ATALK" },
#endif /* defined(ETH_P_ATALK) */
#if defined(ETH_P_AARP)
{ ETH_P_AARP, "AARP" },
#endif /* defined(ETH_P_AARP) */
#if defined(ETH_P_8021Q)
{ ETH_P_8021Q, "8021Q" },
#endif /* defined(ETH_P_8021Q) */
#if defined(ETH_P_IPX)
{ ETH_P_IPX, "IPX" },
#endif /* defined(ETH_P_IPX) */
#if defined(ETH_P_IPV6)
{ ETH_P_IPV6, "IPV6" },
#endif /* defined(ETH_P_IPV6) */
#if defined(ETH_P_SLOW)
{ ETH_P_SLOW, "SLOW" },
#endif /* defined(ETH_P_SLOW) */
#if defined(ETH_P_WCCP)
{ ETH_P_WCCP, "WCCP" },
#endif /* defined(ETH_P_WCCP) */
#if defined(ETH_P_PPP_DISC)
{ ETH_P_PPP_DISC, "PPP_DIS" },
#endif /* defined(ETH_P_PPP_DISC) */
#if defined(ETH_P_PPP_SES)
{ ETH_P_PPP_SES, "PPP_SES" },
#endif /* defined(ETH_P_PPP_SES) */
#if defined(ETH_P_MPLS_UC)
{ ETH_P_MPLS_UC, "MPLS_UC" },
#endif /* defined(ETH_P_MPLS_UC) */
#if defined(ETH_P_MPLS_MC)
{ ETH_P_MPLS_MC, "MPLS_MC" },
#endif /* defined(ETH_P_MPLS_MC) */
#if defined(ETH_P_ATMMPOA)
{ ETH_P_ATMMPOA, "ATMMPOA" },
#endif /* defined(ETH_P_ATMMPOA) */
#if defined(ETH_P_MPLS_MC)
{ ETH_P_MPLS_MC, "MPLS_MC" },
#endif /* defined(ETH_P_MPLS_MC) */
#if defined(ETH_P_ATMFATE)
{ ETH_P_ATMFATE, "ATMFATE" },
#endif /* defined(ETH_P_ATMFATE) */
#if defined(ETH_P_AOE)
{ ETH_P_AOE, "AOE" },
#endif /* defined(ETH_P_AOE) */
#if defined(ETH_P_TIPC)
{ ETH_P_TIPC, "TIPC" },
#endif /* defined(ETH_P_TIPC) */
#if defined(ETH_P_802_3)
{ ETH_P_802_3, "802.3" },
#endif /* defined(ETH_P_802_3) */
#if defined(ETH_P_AX25)
{ ETH_P_AX25, "AX25" },
#endif /* defined(ETH_P_AX25) */
#if defined(ETH_P_ALL)
{ ETH_P_ALL, "ALL" },
#endif /* defined(ETH_P_ALL) */
#if defined(ETH_P_802_2)
{ ETH_P_802_2, "802.2" },
#endif /* defined(ETH_P_802_2) */
#if defined(ETH_P_SNAP)
{ ETH_P_SNAP, "SNAP" },
#endif /* defined(ETH_P_SNAP) */
#if defined(ETH_P_DDCMP)
{ ETH_P_DDCMP, "DDCMP" },
#endif /* defined(ETH_P_DDCMP) */
#if defined(ETH_P_WAN_PPP)
{ ETH_P_WAN_PPP, "WAN_PPP" },
#endif /* defined(ETH_P_WAN_PPP) */
#if defined(ETH_P_PPP_MP)
{ ETH_P_PPP_MP, "PPP MP" },
#endif /* defined(ETH_P_PPP_MP) */
#if defined(ETH_P_LOCALTALK)
{ ETH_P_LOCALTALK, "LCLTALK" },
#endif /* defined(ETH_P_LOCALTALK) */
#if defined(ETH_P_PPPTALK)
{ ETH_P_PPPTALK, "PPPTALK" },
#endif /* defined(ETH_P_PPPTALK) */
#if defined(ETH_P_TR_802_2)
{ ETH_P_TR_802_2, "802.2" },
#endif /* defined(ETH_P_TR_802_2) */
#if defined(ETH_P_MOBITEX)
{ ETH_P_MOBITEX, "MOBITEX" },
#endif /* defined(ETH_P_MOBITEX) */
#if defined(ETH_P_CONTROL)
{ ETH_P_CONTROL, "CONTROL" },
#endif /* defined(ETH_P_CONTROL) */
#if defined(ETH_P_IRDA)
{ ETH_P_IRDA, "IRDA" },
#endif /* defined(ETH_P_IRDA) */
#if defined(ETH_P_ECONET)
{ ETH_P_ECONET, "ECONET" },
#endif /* defined(ETH_P_ECONET) */
#if defined(ETH_P_HDLC)
{ ETH_P_HDLC, "HDLC" },
#endif /* defined(ETH_P_HDLC) */
#if defined(ETH_P_ARCNET)
{ ETH_P_ARCNET, "ARCNET" },
#endif /* defined(ETH_P_ARCNET) */
};
#define NPACKPR (sizeof(Packpr) / sizeof(struct packpr))
struct packty { /* packet socket type conversions */
int ty; /* type number */
char *nm; /* type name */
} static Packty[] = {
#if defined(SOCK_STREAM)
{ SOCK_STREAM, "STREAM" },
#endif /* defined(SOCK_STREAM) */
#if defined(SOCK_DGRAM)
{ SOCK_DGRAM, "DGRAM" },
#endif /* defined(SOCK_DGRAM) */
#if defined(SOCK_RAW)
{ SOCK_RAW, "RAW" },
#endif /* defined(SOCK_RAW) */
#if defined(SOCK_RDM)
{ SOCK_RDM, "RDM" },
#endif /* defined(SOCK_RDM) */
#if defined(SOCK_SEQPACKET)
{ SOCK_SEQPACKET, "SEQPACKET" },
#endif /* defined(SOCK_SEQPACKET) */
#if defined(SOCK_PACKET)
{ SOCK_PACKET, "PACKET" },
#endif /* defined(SOCK_PACKET) */
};
#define NPACKTY (sizeof(Packty) / sizeof(struct packty))
static char *Rawpath = (char *)NULL; /* path to raw socket /proc
* information */
static struct rawsin **Rawsin = (struct rawsin **)NULL;
/* raw socket info, hashed by inode */
static char *SockStatPath = (char *)NULL;
/* path to /proc/net socket status */
static char *TCPpath = (char *)NULL; /* path to TCP /proc information */
static struct tcp_udp **TcpUdp = (struct tcp_udp **)NULL;
/* IPv4 TCP & UDP info, hashed by
* inode */
static int TcpUdp_bucks = 0; /* dynamically sized hash bucket
* count for TCP and UDP -- will
* be a power of two */
#if defined(HASIPv6)
static char *Raw6path = (char *)NULL; /* path to raw IPv6 /proc information */
static struct rawsin **Rawsin6 = (struct rawsin **)NULL;
/* IPv6 raw socket info, hashed by
* inode */
static char *SockStatPath6 = (char *)NULL;
/* path to /proc/net IPv6 socket
* status */
static char *TCP6path = (char *)NULL; /* path to IPv6 TCP /proc information */
static struct tcp_udp6 **TcpUdp6 = (struct tcp_udp6 **)NULL;
/* IPv6 TCP & UDP info, hashed by
* inode */
static int TcpUdp6_bucks = 0; /* dynamically sized hash bucket
* count for IPv6 TCP and UDP -- will
* be a power of two */
static char *UDP6path = (char *)NULL; /* path to IPv6 UDP /proc information */
static char *UDP6LITEpath = (char *)NULL;
/* path to IPv6 UDPLITE /proc
* information */
#endif /* defined(HASIPv6) */
static char *UDPpath = (char *)NULL; /* path to UDP /proc information */
static char *UDPLITEpath = (char *)NULL;
/* path to UDPLITE /proc information */
static char *UNIXpath = (char *)NULL; /* path to UNIX /proc information */
static struct uxsin **Uxsin = (struct uxsin **)NULL;
/* UNIX socket info, hashed by inode */
/*
* Local function prototypes
*/
_PROTOTYPE(static struct ax25sin *check_ax25,(INODETYPE i));
_PROTOTYPE(static struct ipxsin *check_ipx,(INODETYPE i));
_PROTOTYPE(static struct packin *check_pack,(INODETYPE i));
_PROTOTYPE(static struct rawsin *check_raw,(INODETYPE i));
_PROTOTYPE(static struct tcp_udp *check_tcpudp,(INODETYPE i, char **p));
_PROTOTYPE(static struct uxsin *check_unix,(INODETYPE i));
_PROTOTYPE(static void get_ax25,(char *p));
_PROTOTYPE(static void get_ipx,(char *p));
_PROTOTYPE(static void get_pack,(char *p));
_PROTOTYPE(static void get_raw,(char *p));
_PROTOTYPE(static void get_tcpudp,(char *p, int pr, int clr));
_PROTOTYPE(static void get_unix,(char *p));
_PROTOTYPE(static void print_ax25info,(struct ax25sin *ap));
_PROTOTYPE(static void print_ipxinfo,(struct ipxsin *ip));
#if defined(HASIPv6)
_PROTOTYPE(static struct rawsin *check_raw6,(INODETYPE i));
_PROTOTYPE(static struct tcp_udp6 *check_tcpudp6,(INODETYPE i, char **p));
_PROTOTYPE(static void get_raw6,(char *p));
_PROTOTYPE(static void get_tcpudp6,(char *p, int pr, int clr));
_PROTOTYPE(static int net6a2in6,(char *as, struct in6_addr *ad));
#endif /* defined(HASIPv6) */
/*
* __BIONIC__ is stupid, so we need to specify these if building for it
*/
#if defined(__BIONIC__)
enum {
TCP_ESTABLISHED = 1,
TCP_SYN_SENT,
TCP_SYN_RECV,
TCP_FIN_WAIT1,
TCP_FIN_WAIT2,
TCP_TIME_WAIT,
TCP_CLOSE,
TCP_CLOSE_WAIT,
TCP_LAST_ACK,
TCP_LISTEN,
TCP_CLOSING, /* now a valid state */
};
#endif /* defined(__BIONIC__) */
/*
* build_IPstates() -- build the TCP and UDP state tables
*/
void
build_IPstates()
{
if (!TcpSt) {
(void) enter_IPstate("TCP", "ESTABLISHED", TCP_ESTABLISHED);
(void) enter_IPstate("TCP", "SYN_SENT", TCP_SYN_SENT);
(void) enter_IPstate("TCP", "SYN_RECV", TCP_SYN_RECV);
(void) enter_IPstate("TCP", "FIN_WAIT1", TCP_FIN_WAIT1);
(void) enter_IPstate("TCP", "FIN_WAIT2", TCP_FIN_WAIT2);
(void) enter_IPstate("TCP", "TIME_WAIT", TCP_TIME_WAIT);
(void) enter_IPstate("TCP", "CLOSE", TCP_CLOSE);
(void) enter_IPstate("TCP", "CLOSE_WAIT", TCP_CLOSE_WAIT);
(void) enter_IPstate("TCP", "LAST_ACK", TCP_LAST_ACK);
(void) enter_IPstate("TCP", "LISTEN", TCP_LISTEN);
(void) enter_IPstate("TCP", "CLOSING", TCP_CLOSING);
(void) enter_IPstate("TCP", "CLOSED", 0);
(void) enter_IPstate("TCP", (char *)NULL, 0);
}
}
/*
* check_ax25() - check for AX25 socket file
*/
static struct ax25sin *
check_ax25(i)
INODETYPE i; /* socket file's inode number */
{
struct ax25sin *ap;
int h;
h = INOHASH(i);
for (ap = AX25sin[h]; ap; ap = ap->next) {
if (i == ap->inode)
return(ap);
}
return((struct ax25sin *)NULL);
}
/*
* check_ipx() - check for IPX socket file
*/
static struct ipxsin *
check_ipx(i)
INODETYPE i; /* socket file's inode number */
{
int h;
struct ipxsin *ip;
h = INOHASH(i);
for (ip = Ipxsin[h]; ip; ip = ip->next) {
if (i == ip->inode)
return(ip);
}
return((struct ipxsin *)NULL);
}
/*
* check_pack() - check for packet file
*/
static struct packin *
check_pack(i)
INODETYPE i; /* packet file's inode number */
{
int h;
struct packin *pp;
h = INOHASH(i);
for (pp = Packin[h]; pp; pp = pp->next) {
if (i == pp->inode)
return(pp);
}
return((struct packin *)NULL);
}
/*
* check_raw() - check for raw socket file
*/
static struct rawsin *
check_raw(i)
INODETYPE i; /* socket file's inode number */
{
int h;
struct rawsin *rp;
h = INOHASH(i);
for (rp = Rawsin[h]; rp; rp = rp->next) {
if (i == rp->inode)
return(rp);
}
return((struct rawsin *)NULL);
}
/*
* check_tcpudp() - check for IPv4 TCP or UDP socket file
*/
static struct tcp_udp *
check_tcpudp(i, p)
INODETYPE i; /* socket file's inode number */
char **p; /* protocol return */
{
int h;
struct tcp_udp *tp;
h = TCPUDPHASH(i);
for (tp = TcpUdp[h]; tp; tp = tp->next) {
if (i == tp->inode) {
switch (tp->proto) {
case 0:
*p = "TCP";
break;
case 1:
*p = "UDP";
break;
case 2:
*p = "UDPLITE";
break;
default:
*p = "unknown";
}
return(tp);
}
}
return((struct tcp_udp *)NULL);
}
#if defined(HASIPv6)
/*
* check_raw6() - check for raw IPv6 socket file
*/
static struct rawsin *
check_raw6(i)
INODETYPE i; /* socket file's inode number */
{
int h;
struct rawsin *rp;
h = INOHASH(i);
for (rp = Rawsin6[h]; rp; rp = rp->next) {
if (i == rp->inode)
return(rp);
}
return((struct rawsin *)NULL);
}
/*
* check_tcpudp6() - check for IPv6 TCP or UDP socket file
*/
static struct tcp_udp6 *
check_tcpudp6(i, p)
INODETYPE i; /* socket file's inode number */
char **p; /* protocol return */
{
int h;
struct tcp_udp6 *tp6;
h = TCPUDP6HASH(i);
for (tp6 = TcpUdp6[h]; tp6; tp6 = tp6->next) {
if (i == tp6->inode) {
switch (tp6->proto) {
case 0:
*p = "TCP";
break;
case 1:
*p = "UDP";
break;
case 2:
*p = "UDPLITE";
break;
default:
*p = "unknown";
}
return(tp6);
}
}
return((struct tcp_udp6 *)NULL);
}
#endif /* defined(HASIPv6) */
/*
* check_unix() - check for UNIX domain socket
*/
static struct uxsin *
check_unix(i)
INODETYPE i; /* socket file's inode number */
{
int h;
struct uxsin *up;
h = INOHASH(i);
for (up = Uxsin[h]; up; up = up->next) {
if (i == up->inode)
return(up);
}
return((struct uxsin *)NULL);
}
/*
* get_ax25() - get /proc/net/ax25 info
*/
static void
get_ax25(p)
char *p; /* /proc/net/ipx path */
{
struct ax25sin *ap, *np;
FILE *as;
char buf[MAXPATHLEN], *da, *dev_ch, *ep, **fp, *sa;
int h, nf;
INODETYPE inode;
unsigned long rq, sq, state;
MALLOC_S len;
unsigned char rqs, sqs;
static char *vbuf = (char *)NULL;
static size_t vsz = (size_t)0;
/*
* Do second time cleanup or first time setup.
*/
if (AX25sin) {
for (h = 0; h < INOBUCKS; h++) {
for (ap = AX25sin[h]; ap; ap = np) {
np = ap->next;
if (ap->da)
(void) free((FREE_P *)ap->da);
if (ap->dev_ch)
(void) free((FREE_P *)ap->dev_ch);
if (ap->sa)
(void) free((FREE_P *)ap->sa);
(void) free((FREE_P *)ap);
}
AX25sin[h] = (struct ax25sin *)NULL;
}
} else {
AX25sin = (struct ax25sin **)calloc(INOBUCKS,
sizeof(struct ax25sin *));
if (!AX25sin) {
(void) fprintf(stderr,
"%s: can't allocate %d AX25 hash pointer bytes\n",
Pn, INOBUCKS * sizeof(struct ax25sin *));
Exit(1);
}
}
/*
* Open the /proc/net/ax25 file, assign a page size buffer to the stream,
* and read it. Store AX25 socket info in the AX25sin[] hash buckets.
*/
if (!(as = open_proc_stream(p, "r", &vbuf, &vsz, 0)))
return;
while (fgets(buf, sizeof(buf) - 1, as)) {
if ((nf = get_fields(buf, (char *)NULL, &fp, (int *)NULL, 0)) < 24)
continue;
/*
* /proc/next/ac25 has no title line, a very poor deficiency in its
* implementation.
*
* The ax25_get_info() function in kern mnodule .../net/ax25/af_ax25.c
* says the format of the lines in the file is:
*
* magic dev src_addr dest_addr,digi1,digi2,.. st vs vr va t1 t1 \
* t2 t2 t3 t3 idle idle n2 n2 rtt window paclen Snd-Q Rcv-Q \
* inode
*
* The code in this function is forced to assume that format is in
* effect..
*/
/*
* Assemble the inode number and see if it has already been recorded.
* If it has, skip this line.
*/
ep = (char *)NULL;
if (!fp[23] || !*fp[23]
|| (inode = strtoull(fp[23], &ep, 0)) == ULONG_MAX
|| !ep || *ep)
continue;
h = INOHASH((INODETYPE)inode);
for (ap = AX25sin[h]; ap; ap = ap->next) {
if (inode == ap->inode)
break;
}
if (ap)
continue;
/*
* Assemble the send and receive queue values and the state.
*/
rq = sq = (unsigned long)0;
rqs = sqs = (unsigned char)0;
ep = (char *)NULL;
if (!fp[21] || !*fp[21]
|| (sq = strtoul(fp[21], &ep, 0)) == ULONG_MAX || !ep || *ep)
continue;
sqs = (unsigned char)1;
ep = (char *)NULL;
if (!fp[22] || !*fp[22]
|| (rq = strtoul(fp[22], &ep, 0)) == ULONG_MAX || !ep || *ep)
continue;
rqs = (unsigned char)1;
ep = (char *)NULL;
if (!fp[4] || !*fp[4]
|| (state = strtoul(fp[4], &ep, 0)) == ULONG_MAX || !ep || *ep)
continue;
/*
* Allocate space for the destination address.
*/
if (!fp[3] || !*fp[3])
da = (char *)NULL;
else if ((len = strlen(fp[3]))) {
if (!(da = (char *)malloc(len + 1))) {
(void) fprintf(stderr,
"%s: can't allocate %d destination AX25 addr bytes: %s\n",
Pn, len + 1, fp[3]);
Exit(1);
}
(void) snpf(da, len + 1, "%s", fp[3]);
} else
da = (char *)NULL;
/*
* Allocate space for the source address.
*/
if (!fp[2] || !*fp[2])
sa = (char *)NULL;
else if ((len = strlen(fp[2]))) {
if (!(sa = (char *)malloc(len + 1))) {
(void) fprintf(stderr,
"%s: can't allocate %d source AX25 address bytes: %s\n",
Pn, len + 1, fp[2]);
Exit(1);
}
(void) snpf(sa, len + 1, "%s", fp[2]);
} else
sa = (char *)NULL;
/*
* Allocate space for the device characters.
*/
if (!fp[1] || !*fp[1])
dev_ch = (char *)NULL;
else if ((len = strlen(fp[1]))) {
if (!(dev_ch = (char *)malloc(len + 1))) {
(void) fprintf(stderr,
"%s: can't allocate %d destination AX25 dev bytes: %s\n",
Pn, len + 1, fp[1]);
Exit(1);
}
(void) snpf(dev_ch, len + 1, "%s", fp[1]);
} else
dev_ch = (char *)NULL;
/*
* Allocate space for an ax25sin entry, fill it, and link it to its
* hash bucket.
*/
if (!(ap = (struct ax25sin *)malloc(sizeof(struct ax25sin)))) {
(void) fprintf(stderr,
"%s: can't allocate %d byte ax25sin structure\n",
Pn, sizeof(struct ax25sin));
Exit(1);
}
ap->da = da;
ap->dev_ch = dev_ch;
ap->inode = inode;
ap->rq = rq;
ap->rqs = rqs;
ap->sa = sa;
ap->sq = sq;
ap->sqs = sqs;
ap->state = (int)state;
ap->next = AX25sin[h];
AX25sin[h] = ap;
}
(void) fclose(as);
}
/*
* get_ipx() - get /proc/net/ipx info
*/
static void
get_ipx(p)
char *p; /* /proc/net/ipx path */
{
char buf[MAXPATHLEN], *ep, **fp, *la, *ra;
int fl = 1;
int h;
INODETYPE inode;
unsigned long rxq, state, txq;
struct ipxsin *ip, *np;
MALLOC_S len;
static char *vbuf = (char *)NULL;
static size_t vsz = (size_t)0;
FILE *xs;
/*
* Do second time cleanup or first time setup.
*/
if (Ipxsin) {
for (h = 0; h < INOBUCKS; h++) {
for (ip = Ipxsin[h]; ip; ip = np) {
np = ip->next;
if (ip->la)
(void) free((FREE_P *)ip->la);
if (ip->ra)
(void) free((FREE_P *)ip->ra);
(void) free((FREE_P *)ip);
}
Ipxsin[h] = (struct ipxsin *)NULL;
}
} else {
Ipxsin = (struct ipxsin **)calloc(INOBUCKS,
sizeof(struct ipxsin *));
if (!Ipxsin) {
(void) fprintf(stderr,
"%s: can't allocate %d IPX hash pointer bytes\n",
Pn, INOBUCKS * sizeof(struct ipxsin *));
Exit(1);
}
}
/*
* Open the /proc/net/ipx file, assign a page size buffer to the stream,
* and read it. Store IPX socket info in the Ipxsin[] hash buckets.
*/
if (!(xs = open_proc_stream(p, "r", &vbuf, &vsz, 0)))
return;
while (fgets(buf, sizeof(buf) - 1, xs)) {
if (get_fields(buf, (char *)NULL, &fp, (int *)NULL, 0) < 7)
continue;
if (fl) {
/*
* Check the column labels in the first line.
*/
if (!fp[0] || strcmp(fp[0], "Local_Address")
|| !fp[1] || strcmp(fp[1], "Remote_Address")
|| !fp[2] || strcmp(fp[2], "Tx_Queue")
|| !fp[3] || strcmp(fp[3], "Rx_Queue")
|| !fp[4] || strcmp(fp[4], "State")
|| !fp[5] || strcmp(fp[5], "Uid")
|| !fp[6] || strcmp(fp[6], "Inode"))
{
if (!Fwarn) {
(void) fprintf(stderr,
"%s: WARNING: unsupported format: %s\n",
Pn, p);
}
break;
}
fl = 0;
continue;
}
/*
* Assemble the inode number and see if the inode is already
* recorded.
*/
ep = (char *)NULL;
if (!fp[6] || !*fp[6]
|| (inode = strtoull(fp[6], &ep, 0)) == ULONG_MAX
|| !ep || *ep)
continue;
h = INOHASH(inode);
for (ip = Ipxsin[h]; ip; ip = ip->next) {
if (inode == ip->inode)
break;
}
if (ip)
continue;
/*
* Assemble the transmit and receive queue values and the state.
*/
ep = (char *)NULL;
if (!fp[2] || !*fp[2]
|| (txq = strtoul(fp[2], &ep, 16)) == ULONG_MAX || !ep || *ep)
continue;
ep = (char *)NULL;
if (!fp[3] || !*fp[3]
|| (rxq = strtoul(fp[3], &ep, 16)) == ULONG_MAX || !ep || *ep)
continue;
ep = (char *)NULL;
if (!fp[4] || !*fp[4]
|| (state = strtoul(fp[4], &ep, 16)) == ULONG_MAX || !ep || *ep)
continue;
/*
* Allocate space for the local address, unless it is "Not_Connected".
*/
if (!fp[0] || !*fp[0] || strcmp(fp[0], "Not_Connected") == 0)
la = (char *)NULL;
else if ((len = strlen(fp[0]))) {
if (!(la = (char *)malloc(len + 1))) {
(void) fprintf(stderr,
"%s: can't allocate %d local IPX address bytes: %s\n",
Pn, len + 1, fp[0]);
Exit(1);
}
(void) snpf(la, len + 1, "%s", fp[0]);
} else
la = (char *)NULL;
/*
* Allocate space for the remote address, unless it is "Not_Connected".
*/
if (!fp[1] || !*fp[1] || strcmp(fp[1], "Not_Connected") == 0)
ra = (char *)NULL;