#include "libnetlink.h"
#include "SNAPSHOT.h"
+#include <netinet/tcp.h>
+#include <linux/sock_diag.h>
#include <linux/inet_diag.h>
-#include <linux/tcp.h>
-#include <net/tcp_states.h>
+#include <linux/unix_diag.h>
int resolve_hosts = 0;
int resolve_services = 1;
};
struct filter default_filter = {
- dbs: (1<<TCP_DB),
- states: SS_ALL & ~((1<<SS_LISTEN)|(1<<SS_CLOSE)|(1<<SS_TIME_WAIT)|(1<<SS_SYN_RECV)),
-
families: (1<<AF_INET)|(1<<AF_INET6),
+ .dbs = (1<<TCP_DB),
+ .states = SS_ALL & ~((1<<SS_LISTEN)|(1<<SS_CLOSE)|(1<<SS_TIME_WAIT)|(1<<SS_SYN_RECV)),
+
.families= (1<<AF_INET)|(1<<AF_INET6),
};
struct filter current_filter;
-int generic_proc_open(char *env, char *name)
+static FILE *generic_proc_open(const char *env, const char *name)
{
+ const char *p = getenv(env);
char store[128];
- char *p = getenv(env);
+
if (!p) {
p = getenv("PROC_ROOT") ? : "/proc";
snprintf(store, sizeof(store)-1, "%s/%s", p, name);
p = store;
}
- return open(store, O_RDONLY);
+
+ return fopen(p, "r");
}
-int net_tcp_open(void)
+static FILE *net_tcp_open(void)
{
return generic_proc_open("PROC_NET_TCP", "net/tcp");
}
-int net_tcp6_open(void)
+static FILE *net_tcp6_open(void)
{
return generic_proc_open("PROC_NET_TCP6", "net/tcp6");
}
-int net_udp_open(void)
+static FILE *net_udp_open(void)
{
return generic_proc_open("PROC_NET_UDP", "net/udp");
}
-int net_udp6_open(void)
+static FILE *net_udp6_open(void)
{
return generic_proc_open("PROC_NET_UDP6", "net/udp6");
}
-int net_raw_open(void)
+static FILE *net_raw_open(void)
{
return generic_proc_open("PROC_NET_RAW", "net/raw");
}
-int net_raw6_open(void)
+static FILE *net_raw6_open(void)
{
return generic_proc_open("PROC_NET_RAW6", "net/raw6");
}
-int net_unix_open(void)
+static FILE *net_unix_open(void)
{
return generic_proc_open("PROC_NET_UNIX", "net/unix");
}
-int net_packet_open(void)
+static FILE *net_packet_open(void)
{
return generic_proc_open("PROC_NET_PACKET", "net/packet");
}
-int net_netlink_open(void)
+static FILE *net_netlink_open(void)
{
return generic_proc_open("PROC_NET_NETLINK", "net/netlink");
}
-int slabinfo_open(void)
+static FILE *slabinfo_open(void)
{
return generic_proc_open("PROC_SLABINFO", "slabinfo");
}
-int net_sockstat_open(void)
+static FILE *net_sockstat_open(void)
{
return generic_proc_open("PROC_NET_SOCKSTAT", "net/sockstat");
}
-int net_sockstat6_open(void)
+static FILE *net_sockstat6_open(void)
{
return generic_proc_open("PROC_NET_SOCKSTAT6", "net/sockstat6");
}
-int net_snmp_open(void)
+static FILE *net_snmp_open(void)
{
return generic_proc_open("PROC_NET_SNMP", "net/snmp");
}
-int net_netstat_open(void)
+static FILE *ephemeral_ports_open(void)
{
- return generic_proc_open("PROC_NET_NETSTAT", "net/netstat");
+ return generic_proc_open("PROC_IP_LOCAL_PORT_RANGE", "sys/net/ipv4/ip_local_port_range");
}
-int ephemeral_ports_open(void)
+struct user_ent {
+ struct user_ent *next;
+ unsigned int ino;
+ int pid;
+ int fd;
+ char process[0];
+};
+
+#define USER_ENT_HASH_SIZE 256
+struct user_ent *user_ent_hash[USER_ENT_HASH_SIZE];
+
+static int user_ent_hashfn(unsigned int ino)
{
- return generic_proc_open("PROC_IP_LOCAL_PORT_RANGE", "sys/net/ipv4/ip_local_port_range");
+ int val = (ino >> 24) ^ (ino >> 16) ^ (ino >> 8) ^ ino;
+
+ return val & (USER_ENT_HASH_SIZE - 1);
}
-int find_users(int ino, char *buf, int buflen)
+static void user_ent_add(unsigned int ino, const char *process, int pid, int fd)
{
- char pattern[64];
- int pattern_len;
- char *ptr = buf;
- char name[1024];
- DIR *dir;
- struct dirent *d;
- int cnt = 0;
- int nameoff;
+ struct user_ent *p, **pp;
+ int str_len;
- if (!ino)
- return 0;
+ str_len = strlen(process) + 1;
+ p = malloc(sizeof(struct user_ent) + str_len);
+ if (!p)
+ abort();
+ p->next = NULL;
+ p->ino = ino;
+ p->pid = pid;
+ p->fd = fd;
+ strcpy(p->process, process);
+
+ pp = &user_ent_hash[user_ent_hashfn(ino)];
+ p->next = *pp;
+ *pp = p;
+}
- sprintf(pattern, "socket:[%d]", ino);
- pattern_len = strlen(pattern);
+static void user_ent_hash_build(void)
+{
+ const char *root = getenv("PROC_ROOT") ? : "/proc/";
+ struct dirent *d;
+ char name[1024];
+ int nameoff;
+ DIR *dir;
- strncpy(name, getenv("PROC_ROOT") ? : "/proc/", sizeof(name)/2);
- name[sizeof(name)/2] = 0;
- if (strlen(name) == 0 ||
- name[strlen(name)-1] != '/')
+ strcpy(name, root);
+ if (strlen(name) == 0 || name[strlen(name)-1] != '/')
strcat(name, "/");
+
nameoff = strlen(name);
- if ((dir = opendir(name)) == NULL)
- return 0;
+
+ dir = opendir(name);
+ if (!dir)
+ return;
while ((d = readdir(dir)) != NULL) {
- DIR *dir1;
struct dirent *d1;
- int pid;
- int pos;
- char crap;
char process[16];
+ int pid, pos;
+ DIR *dir1;
+ char crap;
if (sscanf(d->d_name, "%d%c", &pid, &crap) != 1)
continue;
- sprintf(name+nameoff, "%d/fd/", pid);
+ sprintf(name + nameoff, "%d/fd/", pid);
pos = strlen(name);
if ((dir1 = opendir(name)) == NULL)
continue;
- process[0] = 0;
+ process[0] = '\0';
while ((d1 = readdir(dir1)) != NULL) {
- int fd, n;
+ const char *pattern = "socket:[";
+ unsigned int ino;
char lnk[64];
+ int fd;
+ ssize_t link_len;
if (sscanf(d1->d_name, "%d%c", &fd, &crap) != 1)
continue;
sprintf(name+pos, "%d", fd);
- n = readlink(name, lnk, sizeof(lnk)-1);
- if (n != pattern_len ||
- memcmp(lnk, pattern, n))
+
+ link_len = readlink(name, lnk, sizeof(lnk)-1);
+ if (link_len == -1)
continue;
+ lnk[link_len] = '\0';
- if (ptr-buf >= buflen-1)
- break;
+ if (strncmp(lnk, pattern, strlen(pattern)))
+ continue;
- if (process[0] == 0) {
+ sscanf(lnk, "socket:[%u]", &ino);
+
+ if (process[0] == '\0') {
char tmp[1024];
FILE *fp;
- snprintf(tmp, sizeof(tmp), "%s/%d/stat",
- getenv("PROC_ROOT") ? : "/proc", pid);
+
+ snprintf(tmp, sizeof(tmp), "%s/%d/stat", root, pid);
if ((fp = fopen(tmp, "r")) != NULL) {
fscanf(fp, "%*d (%[^)])", process);
fclose(fp);
}
}
- snprintf(ptr, buflen-(ptr-buf), "(\"%s\",%d,%d),", process, pid, fd);
- ptr += strlen(ptr);
- cnt++;
+ user_ent_add(ino, process, pid, fd);
}
closedir(dir1);
}
closedir(dir);
+}
+
+int find_users(unsigned ino, char *buf, int buflen)
+{
+ struct user_ent *p;
+ int cnt = 0;
+ char *ptr;
+
+ if (!ino)
+ return 0;
+
+ p = user_ent_hash[user_ent_hashfn(ino)];
+ ptr = buf;
+ while (p) {
+ if (p->ino != ino)
+ goto next;
+
+ if (ptr - buf >= buflen - 1)
+ break;
+
+ snprintf(ptr, buflen - (ptr - buf),
+ "(\"%s\",%d,%d),",
+ p->process, p->pid, p->fd);
+ ptr += strlen(ptr);
+ cnt++;
+
+ next:
+ p = p->next;
+ }
+
if (ptr != buf)
- ptr[-1] = 0;
+ ptr[-1] = '\0';
+
return cnt;
}
-
/* Get stats from slab */
struct slabstat
memset(s, 0, sizeof(*s));
- if ((fp = fdopen(slabinfo_open(), "r")) == NULL)
+ fp = slabinfo_open();
+ if (!fp)
return -1;
cnt = sizeof(*s)/sizeof(int);
int timer;
int timeout;
int retrs;
- int ino;
+ unsigned ino;
int probes;
- int uid;
+ unsigned uid;
int refcnt;
unsigned long long sk;
int rto, ato, qack, cwnd, ssthresh;
if (msecs)
sprintf(buf+strlen(buf), "%03dms", msecs);
return buf;
-};
+}
const char *print_hz_timer(int timeout)
{
- int hz = get_hz();
+ int hz = get_user_hz();
return print_ms_timer(((timeout*1000) + hz-1)/hz);
-};
+}
struct scache
{
}
}
}
+ pclose(fp);
}
}
static int is_ephemeral(int port)
{
if (!ip_local_port_min) {
- FILE *f = fdopen(ephemeral_ports_open(), "r");
+ FILE *f = ephemeral_ports_open();
if (f) {
fscanf(f, "%d %d",
&ip_local_port_min, &ip_local_port_max);
return s->lport < 0;
if (!low) {
- FILE *fp = fdopen(ephemeral_ports_open(), "r");
+ FILE *fp = ephemeral_ports_open();
if (fp) {
fscanf(fp, "%d%d", &low, &high);
fclose(fp);
{
if (!(*bytecode=malloc(4))) abort();
((struct inet_diag_bc_op*)*bytecode)[0] = (struct inet_diag_bc_op){ INET_DIAG_BC_AUTO, 4, 8 };
- return 8;
+ return 4;
}
case SSF_DCOND:
case SSF_SCOND:
return res;
}
-static int tcp_show_line(char *line, struct filter *f, int family)
+static int tcp_show_line(char *line, const struct filter *f, int family)
{
struct tcpstat s;
char *loc, *rem, *data;
return 0;
opt[0] = 0;
- n = sscanf(data, "%x %x:%x %x:%x %x %d %d %d %d %llx %d %d %d %d %d %[^\n]\n",
+ n = sscanf(data, "%x %x:%x %x:%x %x %d %d %u %d %llx %d %d %d %d %d %[^\n]\n",
&s.state, &s.wq, &s.rq,
&s.timer, &s.timeout, &s.retrs, &s.uid, &s.probes, &s.ino,
&s.refcnt, &s.sk, &s.rto, &s.ato, &s.qack,
}
}
if (show_tcpinfo) {
- if (s.rto && s.rto != 3*get_hz())
- printf(" rto:%g", (double)s.rto/get_hz());
+ int hz = get_user_hz();
+ if (s.rto && s.rto != 3*hz)
+ printf(" rto:%g", (double)s.rto/hz);
if (s.ato)
- printf(" ato:%g", (double)s.ato/get_hz());
+ printf(" ato:%g", (double)s.ato/hz);
if (s.cwnd != 2)
printf(" cwnd:%d", s.cwnd);
if (s.ssthresh != -1)
if (show_details) {
if (s.uid)
printf(" uid:%u", (unsigned)s.uid);
- printf(" ino:%u", (unsigned)s.ino);
+ printf(" ino:%u", s.ino);
printf(" sk:%llx", s.sk);
if (opt[0])
printf(" opt:\"%s\"", opt);
return 0;
}
-static int generic_record_read(int fd, char *buf, int bufsize,
- int (*worker)(char*, struct filter *, int),
- struct filter *f, int fam)
+static int generic_record_read(FILE *fp,
+ int (*worker)(char*, const struct filter *, int),
+ const struct filter *f, int fam)
{
- int n;
- int recsize;
- int eof = 0;
- char *p;
+ char line[256];
- /* Load the first chunk and calculate record length from it. */
- n = read(fd, buf, bufsize);
- if (n < 0)
+ /* skip header */
+ if (fgets(line, sizeof(line), fp) == NULL)
goto outerr;
- /* I _know_ that this is wrong, do not remind. :-)
- * But this works nowadays. */
- if (n < bufsize)
- eof = 1;
- p = memchr(buf, '\n', n);
- if (p == NULL || (p-buf) >= n)
- goto outwrongformat;
- recsize = (p-buf)+1;
- p = buf+recsize;
-
- for (;;) {
- while ((p+recsize) - buf <= n) {
- if (p[recsize-1] != '\n')
- goto outwrongformat;
- p[recsize-1] = 0;
- if (worker(p, f, fam) < 0)
- goto done;
- p += recsize;
- }
- if (!eof) {
- int remains = (buf+bufsize) - p;
- memcpy(buf, p, remains);
- p = buf+remains;
- n = read(fd, p, (buf+bufsize) - p);
- if (n < 0)
- goto outerr;
- if (n < (buf+bufsize) - p) {
- eof = 1;
- if (n == 0) {
- if (remains)
- goto outwrongformat;
- goto done;
- }
- }
- n += remains;
- p = buf;
- } else {
- if (p != buf+n)
- goto outwrongformat;
- goto done;
+
+ while (fgets(line, sizeof(line), fp) != NULL) {
+ int n = strlen(line);
+ if (n == 0 || line[n-1] != '\n') {
+ errno = -EINVAL;
+ return -1;
}
- }
-done:
- return 0;
+ line[n-1] = 0;
-outwrongformat:
- errno = EINVAL;
+ if (worker(line, f, fam) < 0)
+ return 0;
+ }
outerr:
- return -1;
+
+ return ferror(fp) ? -1 : 0;
}
static char *sprint_bw(char *buf, double bw)
parse_rtattr(tb, INET_DIAG_MAX, (struct rtattr*)(r+1),
nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
- if (tb[INET_DIAG_MEMINFO]) {
+ if (tb[INET_DIAG_SKMEMINFO]) {
+ const __u32 *skmeminfo = RTA_DATA(tb[INET_DIAG_SKMEMINFO]);
+ printf(" skmem:(r%u,rb%u,t%u,tb%u,f%u,w%u,o%u)",
+ skmeminfo[SK_MEMINFO_RMEM_ALLOC],
+ skmeminfo[SK_MEMINFO_RCVBUF],
+ skmeminfo[SK_MEMINFO_WMEM_ALLOC],
+ skmeminfo[SK_MEMINFO_SNDBUF],
+ skmeminfo[SK_MEMINFO_FWD_ALLOC],
+ skmeminfo[SK_MEMINFO_WMEM_QUEUED],
+ skmeminfo[SK_MEMINFO_OPTMEM]);
+ }else if (tb[INET_DIAG_MEMINFO]) {
const struct inet_diag_meminfo *minfo
= RTA_DATA(tb[INET_DIAG_MEMINFO]);
printf(" mem:(r%u,w%u,f%u,t%u)",
printf(" sack");
if (info->tcpi_options & TCPI_OPT_ECN)
printf(" ecn");
+ if (info->tcpi_options & TCPI_OPT_ECN_SEEN)
+ printf(" ecnseen");
}
if (tb[INET_DIAG_CONG])
- printf("%s", (char *) RTA_DATA(tb[INET_DIAG_CONG]));
+ printf(" %s", rta_getattr_str(tb[INET_DIAG_CONG]));
if (info->tcpi_options & TCPI_OPT_WSCALE)
printf(" wscale:%d,%d", info->tcpi_snd_wscale,
}
}
-int tcp_show_sock(struct nlmsghdr *nlh, struct filter *f)
+static int tcp_show_sock(struct nlmsghdr *nlh, struct filter *f)
{
struct inet_diag_msg *r = NLMSG_DATA(nlh);
struct tcpstat s;
if (show_details) {
if (r->idiag_uid)
printf(" uid:%u", (unsigned)r->idiag_uid);
- printf(" ino:%u", (unsigned)r->idiag_inode);
- printf(" sk:%08x", r->id.idiag_cookie[0]);
+ printf(" ino:%u", r->idiag_inode);
+ printf(" sk:");
if (r->id.idiag_cookie[1] != 0)
printf("%08x", r->id.idiag_cookie[1]);
+ printf("%08x", r->id.idiag_cookie[0]);
}
if (show_mem || show_tcpinfo) {
printf("\n\t");
return 0;
}
-int tcp_show_netlink(struct filter *f, FILE *dump_fp, int socktype)
+static int tcp_show_netlink(struct filter *f, FILE *dump_fp, int socktype)
{
int fd;
struct sockaddr_nl nladdr;
memset(&req.r, 0, sizeof(req.r));
req.r.idiag_family = AF_INET;
req.r.idiag_states = f->states;
- if (show_mem)
+ if (show_mem) {
req.r.idiag_ext |= (1<<(INET_DIAG_MEMINFO-1));
+ req.r.idiag_ext |= (1<<(INET_DIAG_SKMEMINFO-1));
+ }
if (show_tcpinfo) {
req.r.idiag_ext |= (1<<(INET_DIAG_INFO-1));
.msg_iovlen = f->f ? 3 : 1,
};
- if (sendmsg(fd, &msg, 0) < 0)
+ if (sendmsg(fd, &msg, 0) < 0) {
+ close(fd);
return -1;
+ }
iov[0] = (struct iovec){
.iov_base = buf,
}
if (status == 0) {
fprintf(stderr, "EOF on netlink\n");
+ close(fd);
return 0;
}
h = (struct nlmsghdr*)buf;
while (NLMSG_OK(h, status)) {
int err;
+ struct inet_diag_msg *r = NLMSG_DATA(h);
if (/*h->nlmsg_pid != rth->local.nl_pid ||*/
h->nlmsg_seq != 123456)
goto skip_it;
- if (h->nlmsg_type == NLMSG_DONE)
+ if (h->nlmsg_type == NLMSG_DONE) {
+ close(fd);
return 0;
+ }
if (h->nlmsg_type == NLMSG_ERROR) {
struct nlmsgerr *err = (struct nlmsgerr*)NLMSG_DATA(h);
if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) {
fprintf(stderr, "ERROR truncated\n");
} else {
errno = -err->error;
+ if (errno == EOPNOTSUPP) {
+ close(fd);
+ return -1;
+ }
perror("TCPDIAG answers");
}
+ close(fd);
return 0;
}
if (!dump_fp) {
+ if (!(f->families & (1<<r->idiag_family))) {
+ h = NLMSG_NEXT(h, status);
+ continue;
+ }
err = tcp_show_sock(h, NULL);
- if (err < 0)
+ if (err < 0) {
+ close(fd);
return err;
+ }
}
skip_it:
exit(1);
}
}
+ close(fd);
return 0;
}
-int tcp_show_netlink_file(struct filter *f)
+static int tcp_show_netlink_file(struct filter *f)
{
FILE *fp;
char buf[8192];
}
}
-int tcp_show(struct filter *f, int socktype)
+static int tcp_show(struct filter *f, int socktype)
{
- int fd = -1;
+ FILE *fp = NULL;
char *buf = NULL;
int bufsize = 64*1024;
/* Sigh... We have to parse /proc/net/tcp... */
+
/* Estimate amount of sockets and try to allocate
* huge buffer to read all the table at one read.
* Limit it by 16MB though. The assumption is: as soon as
}
if (f->families & (1<<AF_INET)) {
- if ((fd = net_tcp_open()) < 0)
+ if ((fp = net_tcp_open()) == NULL)
goto outerr;
- if (generic_record_read(fd, buf, bufsize, tcp_show_line, f, AF_INET))
+
+ setbuffer(fp, buf, bufsize);
+ if (generic_record_read(fp, tcp_show_line, f, AF_INET))
goto outerr;
- close(fd);
+ fclose(fp);
}
if ((f->families & (1<<AF_INET6)) &&
- (fd = net_tcp6_open()) >= 0) {
- if (generic_record_read(fd, buf, bufsize, tcp_show_line, f, AF_INET6))
+ (fp = net_tcp6_open()) != NULL) {
+ setbuffer(fp, buf, bufsize);
+ if (generic_record_read(fp, tcp_show_line, f, AF_INET6))
goto outerr;
- close(fd);
+ fclose(fp);
}
free(buf);
int saved_errno = errno;
if (buf)
free(buf);
- if (fd >= 0)
- close(fd);
+ if (fp)
+ fclose(fp);
errno = saved_errno;
return -1;
} while (0);
}
-int dgram_show_line(char *line, struct filter *f, int family)
+int dgram_show_line(char *line, const struct filter *f, int family)
{
struct tcpstat s;
char *loc, *rem, *data;
return 0;
opt[0] = 0;
- n = sscanf(data, "%x %x:%x %*x:%*x %*x %d %*d %d %d %llx %[^\n]\n",
+ n = sscanf(data, "%x %x:%x %*x:%*x %*x %d %*d %u %d %llx %[^\n]\n",
&s.state, &s.wq, &s.rq,
&s.uid, &s.ino,
&s.refcnt, &s.sk, opt);
if (show_details) {
if (s.uid)
printf(" uid=%u", (unsigned)s.uid);
- printf(" ino=%u", (unsigned)s.ino);
+ printf(" ino=%u", s.ino);
printf(" sk=%llx", s.sk);
if (opt[0])
printf(" opt:\"%s\"", opt);
int udp_show(struct filter *f)
{
- int fd = -1;
- char buf[8192];
- int bufsize = sizeof(buf);
+ FILE *fp = NULL;
dg_proto = UDP_PROTO;
if (f->families&(1<<AF_INET)) {
- if ((fd = net_udp_open()) < 0)
+ if ((fp = net_udp_open()) == NULL)
goto outerr;
- if (generic_record_read(fd, buf, bufsize, dgram_show_line, f, AF_INET))
+ if (generic_record_read(fp, dgram_show_line, f, AF_INET))
goto outerr;
- close(fd);
+ fclose(fp);
}
if ((f->families&(1<<AF_INET6)) &&
- (fd = net_udp6_open()) >= 0) {
- if (generic_record_read(fd, buf, bufsize, dgram_show_line, f, AF_INET6))
+ (fp = net_udp6_open()) != NULL) {
+ if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
goto outerr;
- close(fd);
+ fclose(fp);
}
return 0;
outerr:
do {
int saved_errno = errno;
- if (fd >= 0)
- close(fd);
+ if (fp)
+ fclose(fp);
errno = saved_errno;
return -1;
} while (0);
int raw_show(struct filter *f)
{
- int fd = -1;
- char buf[8192];
- int bufsize = sizeof(buf);
+ FILE *fp = NULL;
dg_proto = RAW_PROTO;
if (f->families&(1<<AF_INET)) {
- if ((fd = net_raw_open()) < 0)
+ if ((fp = net_raw_open()) == NULL)
goto outerr;
- if (generic_record_read(fd, buf, bufsize, dgram_show_line, f, AF_INET))
+ if (generic_record_read(fp, dgram_show_line, f, AF_INET))
goto outerr;
- close(fd);
+ fclose(fp);
}
if ((f->families&(1<<AF_INET6)) &&
- (fd = net_raw6_open()) >= 0) {
- if (generic_record_read(fd, buf, bufsize, dgram_show_line, f, AF_INET6))
+ (fp = net_raw6_open()) != NULL) {
+ if (generic_record_read(fp, dgram_show_line, f, AF_INET6))
goto outerr;
- close(fd);
+ fclose(fp);
}
return 0;
outerr:
do {
int saved_errno = errno;
- if (fd >= 0)
- close(fd);
+ if (fp)
+ fclose(fp);
errno = saved_errno;
return -1;
} while (0);
}
}
+static int unix_show_sock(struct nlmsghdr *nlh, struct filter *f)
+{
+ struct unix_diag_msg *r = NLMSG_DATA(nlh);
+ struct rtattr *tb[UNIX_DIAG_MAX+1];
+ char name[128];
+ int peer_ino;
+ int rqlen;
+
+ parse_rtattr(tb, UNIX_DIAG_MAX, (struct rtattr*)(r+1),
+ nlh->nlmsg_len - NLMSG_LENGTH(sizeof(*r)));
+
+ if (netid_width)
+ printf("%-*s ", netid_width,
+ r->udiag_type == SOCK_STREAM ? "u_str" : "u_dgr");
+ if (state_width)
+ printf("%-*s ", state_width, sstate_name[r->udiag_state]);
+
+ if (tb[UNIX_DIAG_RQLEN])
+ rqlen = *(int *)RTA_DATA(tb[UNIX_DIAG_RQLEN]);
+ else
+ rqlen = 0;
+
+ printf("%-6d %-6d ", rqlen, 0);
+
+ if (tb[UNIX_DIAG_NAME]) {
+ int len = RTA_PAYLOAD(tb[UNIX_DIAG_NAME]);
+
+ memcpy(name, RTA_DATA(tb[UNIX_DIAG_NAME]), len);
+ name[len] = '\0';
+ if (name[0] == '\0')
+ name[0] = '@';
+ } else
+ sprintf(name, "*");
+
+ if (tb[UNIX_DIAG_PEER])
+ peer_ino = *(int *)RTA_DATA(tb[UNIX_DIAG_PEER]);
+ else
+ peer_ino = 0;
+
+ printf("%*s %-*d %*s %-*d",
+ addr_width, name,
+ serv_width, r->udiag_ino,
+ addr_width, "*", /* FIXME */
+ serv_width, peer_ino);
+
+ if (show_users) {
+ char ubuf[4096];
+ if (find_users(r->udiag_ino, ubuf, sizeof(ubuf)) > 0)
+ printf(" users:(%s)", ubuf);
+ }
+
+ printf("\n");
+
+ return 0;
+}
+
+static int unix_show_netlink(struct filter *f, FILE *dump_fp)
+{
+ int fd;
+ struct {
+ struct nlmsghdr nlh;
+ struct unix_diag_req r;
+ } req;
+ char buf[8192];
+
+ if ((fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_INET_DIAG)) < 0)
+ return -1;
+
+ memset(&req, 0, sizeof(req));
+ req.nlh.nlmsg_len = sizeof(req);
+ req.nlh.nlmsg_type = SOCK_DIAG_BY_FAMILY;
+ req.nlh.nlmsg_flags = NLM_F_ROOT|NLM_F_MATCH|NLM_F_REQUEST;
+ req.nlh.nlmsg_seq = 123456;
+
+ req.r.sdiag_family = AF_UNIX;
+ req.r.udiag_states = f->states;
+ req.r.udiag_show = UDIAG_SHOW_NAME | UDIAG_SHOW_PEER | UDIAG_SHOW_RQLEN;
+
+ if (send(fd, &req, sizeof(req), 0) < 0) {
+ close(fd);
+ return -1;
+ }
+
+ while (1) {
+ ssize_t status;
+ struct nlmsghdr *h;
+ struct sockaddr_nl nladdr;
+ socklen_t slen = sizeof(nladdr);
+
+ status = recvfrom(fd, buf, sizeof(buf), 0,
+ (struct sockaddr *) &nladdr, &slen);
+ if (status < 0) {
+ if (errno == EINTR)
+ continue;
+ perror("OVERRUN");
+ continue;
+ }
+ if (status == 0) {
+ fprintf(stderr, "EOF on netlink\n");
+ goto close_it;
+ }
+
+ if (dump_fp)
+ fwrite(buf, 1, NLMSG_ALIGN(status), dump_fp);
+
+ h = (struct nlmsghdr*)buf;
+ while (NLMSG_OK(h, status)) {
+ int err;
+
+ if (/*h->nlmsg_pid != rth->local.nl_pid ||*/
+ h->nlmsg_seq != 123456)
+ goto skip_it;
+
+ if (h->nlmsg_type == NLMSG_DONE)
+ goto close_it;
+
+ if (h->nlmsg_type == NLMSG_ERROR) {
+ struct nlmsgerr *err = (struct nlmsgerr*)NLMSG_DATA(h);
+ if (h->nlmsg_len < NLMSG_LENGTH(sizeof(struct nlmsgerr))) {
+ fprintf(stderr, "ERROR truncated\n");
+ } else {
+ errno = -err->error;
+ if (errno != ENOENT)
+ fprintf(stderr, "UDIAG answers %d\n", errno);
+ }
+ close(fd);
+ return -1;
+ }
+ if (!dump_fp) {
+ err = unix_show_sock(h, f);
+ if (err < 0) {
+ close(fd);
+ return err;
+ }
+ }
+
+skip_it:
+ h = NLMSG_NEXT(h, status);
+ }
+
+ if (status) {
+ fprintf(stderr, "!!!Remnant of size %zd\n", status);
+ exit(1);
+ }
+ }
+
+close_it:
+ close(fd);
+ return 0;
+}
+
int unix_show(struct filter *f)
{
FILE *fp;
int cnt;
struct unixstat *list = NULL;
- if ((fp = fdopen(net_unix_open(), "r")) == NULL)
+ if (!getenv("PROC_NET_UNIX") && !getenv("PROC_ROOT")
+ && unix_show_netlink(f, NULL) == 0)
+ return 0;
+
+ if ((fp = net_unix_open()) == NULL)
return -1;
fgets(buf, sizeof(buf)-1, fp);
cnt = 0;
}
}
-
+ fclose(fp);
if (list) {
unix_list_print(list, f);
unix_list_free(list);
if (!(f->states & (1<<SS_CLOSE)))
return 0;
- if ((fp = fdopen(net_packet_open(), "r")) == NULL)
+ if ((fp = net_packet_open()) == NULL)
return -1;
fgets(buf, sizeof(buf)-1, fp);
if (!(f->states & (1<<SS_CLOSE)))
return 0;
- if ((fp = fdopen(net_netlink_open(), "r")) == NULL)
+ if ((fp = net_netlink_open()) == NULL)
return -1;
fgets(buf, sizeof(buf)-1, fp);
*result = 0;
- if ((fp = fdopen(net_snmp_open(), "r")) == NULL)
+ if ((fp = net_snmp_open()) == NULL)
return -1;
while (fgets(buf, sizeof(buf), fp) != NULL) {
memset(s, 0, sizeof(*s));
- if ((fp = fdopen(net_sockstat_open(), "r")) == NULL)
+ if ((fp = net_sockstat_open()) == NULL)
return -1;
while(fgets(buf, sizeof(buf), fp) != NULL)
get_sockstat_line(buf, s);
fclose(fp);
- if ((fp = fdopen(net_sockstat6_open(), "r")) == NULL)
+ if ((fp = net_sockstat6_open()) == NULL)
return 0;
while(fgets(buf, sizeof(buf), fp) != NULL)
get_sockstat_line(buf, s);
return 0;
}
-
-static void usage(void) __attribute__((noreturn));
-
-static void usage(void)
+static void _usage(FILE *dest)
{
- fprintf(stderr,
+ fprintf(dest,
"Usage: ss [ OPTIONS ]\n"
" ss [ OPTIONS ] [ FILTER ]\n"
" -h, --help this message\n"
" -x, --unix display only Unix domain sockets\n"
" -f, --family=FAMILY display sockets of type FAMILY\n"
"\n"
-" -A, --query=QUERY\n"
+" -A, --query=QUERY, --socket=QUERY\n"
" QUERY := {all|inet|tcp|udp|raw|unix|packet|netlink}[,QUERY]\n"
"\n"
+" -D, --diag=FILE Dump raw information about TCP sockets to FILE\n"
" -F, --filter=FILE read filter information from FILE\n"
" FILTER := [ state TCP-STATE ] [ EXPRESSION ]\n"
);
+}
+
+static void help(void) __attribute__((noreturn));
+static void help(void)
+{
+ _usage(stdout);
+ exit(0);
+}
+
+static void usage(void) __attribute__((noreturn));
+static void usage(void)
+{
+ _usage(stderr);
exit(-1);
}
{ "packet", 0, 0, '0' },
{ "family", 1, 0, 'f' },
{ "socket", 1, 0, 'A' },
+ { "query", 1, 0, 'A' },
{ "summary", 0, 0, 's' },
- { "diag", 0, 0, 'D' },
+ { "diag", 1, 0, 'D' },
{ "filter", 1, 0, 'F' },
{ "version", 0, 0, 'V' },
{ "help", 0, 0, 'h' },
break;
case 'p':
show_users++;
+ user_ent_hash_build();
break;
case 'd':
current_filter.dbs |= (1<<DCCP_DB);
current_filter.states = SS_ALL;
break;
case 'l':
- current_filter.states = (1<<SS_LISTEN);
+ current_filter.states = (1<<SS_LISTEN) | (1<<SS_CLOSE);
break;
case '4':
preferred_family = AF_INET;
else if (strcmp(optarg, "netlink") == 0)
preferred_family = AF_NETLINK;
else if (strcmp(optarg, "help") == 0)
- usage();
+ help();
else {
fprintf(stderr, "ss: \"%s\" is invalid family\n", optarg);
usage();
exit(0);
case 'h':
case '?':
+ help();
default:
usage();
}
int mask2;
if (preferred_family == AF_INET ||
preferred_family == AF_INET6) {
- mask2= (1<<TCP_DB);
- if (!do_default)
- mask2 = (1<<UDP_DB)|(1<<RAW_DB);
+ mask2= current_filter.dbs;
} else if (preferred_family == AF_PACKET) {
mask2 = PACKET_DBM;
} else if (preferred_family == AF_UNIX) {
addr_width, "Local Address", serv_width, "Port",
addr_width, "Peer Address", serv_width, "Port");
-//printf("%08x %08x %08x\n", current_filter.dbs, current_filter.states, current_filter.families);
fflush(stdout);
if (current_filter.dbs & (1<<NETLINK_DB))
projects / lisovros / iproute2_canprio.git / blobdiff