X-Git-Url: http://git.onelab.eu/?p=iproute2.git;a=blobdiff_plain;f=misc%2Frtacct.c;fp=misc%2Frtacct.c;h=0000000000000000000000000000000000000000;hp=0d8ff7b9d5d78c75d5cd80ffeb550b2a4434bf84;hb=3331a68859fd71047bb1f309048960b48eab2d83;hpb=2bd4a72f2100be7ad7d9518cb1d49bb2a5b71994

diff --git a/misc/rtacct.c b/misc/rtacct.c
deleted file mode 100644
index 0d8ff7b..0000000
--- a/misc/rtacct.c
+++ /dev/null
@@ -1,628 +0,0 @@
-/*
- * rtacct.c		Applet to display contents of /proc/net/rt_acct.
- *
- *		This program is free software; you can redistribute it and/or
- *		modify it under the terms of the GNU General Public License
- *		as published by the Free Software Foundation; either version
- *		2 of the License, or (at your option) any later version.
- *
- * Authors:	Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <string.h>
-#include <errno.h>
-#include <time.h>
-#include <sys/time.h>
-#include <fnmatch.h>
-#include <sys/file.h>
-#include <sys/socket.h>
-#include <sys/un.h>
-#include <sys/poll.h>
-#include <sys/wait.h>
-#include <sys/stat.h>
-#include <sys/mman.h>
-#include <signal.h>
-#include <math.h>
-
-#include "rt_names.h"
-
-#include <SNAPSHOT.h>
-
-int reset_history = 0;
-int ignore_history = 0;
-int no_output = 0;
-int no_update = 0;
-int scan_interval = 0;
-int time_constant = 0;
-int dump_zeros = 0;
-unsigned long magic_number = 0;
-double W;
-
-int generic_proc_open(char *env, char *name)
-{
-	char store[1024];
-	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);
-}
-
-int net_rtacct_open(void)
-{
-	return generic_proc_open("PROC_NET_RTACCT", "net/rt_acct");
-}
-
-__u32 rmap[256/4];
-
-struct rtacct_data
-{
-	__u32			ival[256*4];
-
-	unsigned long long	val[256*4];
-	double			rate[256*4];
-	char			signature[128];
-};
-
-struct rtacct_data kern_db_static;
-
-struct rtacct_data *kern_db = &kern_db_static;
-struct rtacct_data *hist_db;
-
-void nread(int fd, char *buf, int tot)
-{
-	int count = 0;
-
-	while (count < tot) {
-		int n = read(fd, buf+count, tot-count);
-		if (n < 0) {
-			if (errno == EINTR)
-				continue;
-			exit(-1);
-		}
-		if (n == 0)
-			exit(-1);
-		count += n;
-	}
-}
-
-
-__u32 *read_kern_table(__u32 *tbl)
-{
-	static __u32 *tbl_ptr;
-	int fd;
-
-	if (magic_number) {
-		if (tbl_ptr != NULL)
-			return tbl_ptr;
-
-		fd = open("/dev/mem", O_RDONLY);
-		if (fd < 0) {
-			perror("magic open");
-			exit(-1);
-		}
-		tbl_ptr = mmap(NULL, 4096,
-			       PROT_READ,
-			       MAP_SHARED,
-			       fd, magic_number);
-		if ((unsigned long)tbl_ptr == ~0UL) {
-			perror("magic mmap");
-			exit(-1);
-		}
-		close(fd);
-		return tbl_ptr;
-	}
-
-	fd = net_rtacct_open();
-	if (fd >= 0) {
-		nread(fd, (char*)tbl, 256*16);
-		close(fd);
-	} else {
-		memset(tbl, 0, 256*16);
-	}
-	return tbl;
-}
-
-void format_rate(FILE *fp, double rate)
-{
-	char temp[64];
-
-	if (rate > 1024*1024) {
-		sprintf(temp, "%uM", (unsigned)rint(rate/(1024*1024)));
-		fprintf(fp, " %-10s", temp);
-	} else if (rate > 1024) {
-		sprintf(temp, "%uK", (unsigned)rint(rate/1024));
-		fprintf(fp, " %-10s", temp);
-	} else
-		fprintf(fp, " %-10u", (unsigned)rate);
-}
-
-void format_count(FILE *fp, unsigned long long val)
-{
-	if (val > 1024*1024*1024)
-		fprintf(fp, " %10lluM", val/(1024*1024));
-	else if (val > 1024*1024)
-		fprintf(fp, " %10lluK", val/1024);
-	else
-		fprintf(fp, " %10llu", val);
-}
-
-void dump_abs_db(FILE *fp)
-{
-	int realm;
-	char b1[16];
-
-	if (!no_output) {
-		fprintf(fp, "#%s\n", kern_db->signature);
-		fprintf(fp,
-"%-10s "
-"%-10s "
-"%-10s "
-"%-10s "
-"%-10s "
-"\n"
-		       , "Realm", "BytesTo", "PktsTo", "BytesFrom", "PktsFrom"); 
-		fprintf(fp,
-"%-10s "
-"%-10s "
-"%-10s "
-"%-10s "
-"%-10s "
-"\n"
-		       , "", "BPSTo", "PPSTo", "BPSFrom", "PPSFrom"); 
-
-	}
-
-	for (realm=0; realm<256; realm++) {
-		int i;
-		unsigned long long *val;
-		double		   *rate;
-
-		if (!(rmap[realm>>5] & (1<<(realm&0x1f))))
-			continue;
-
-		val = &kern_db->val[realm*4];
-		rate = &kern_db->rate[realm*4];
-
-		if (!dump_zeros &&
-		    !val[0] && !rate[0] &&
-		    !val[1] && !rate[1] &&
-		    !val[2] && !rate[2] &&
-		    !val[3] && !rate[3])
-			continue;
-
-		if (hist_db) {
-			memcpy(&hist_db->val[realm*4], val, sizeof(*val)*4);
-		}
-
-		if (no_output)
-			continue;
-
-		fprintf(fp, "%-10s", rtnl_rtrealm_n2a(realm, b1, sizeof(b1)));
-		for (i = 0; i < 4; i++)
-			format_count(fp, val[i]); 
-		fprintf(fp, "\n%-10s", "");
-		for (i = 0; i < 4; i++)
-			format_rate(fp, rate[i]); 
-		fprintf(fp, "\n");
-	}
-}
-
-
-void dump_incr_db(FILE *fp)
-{
-	int k, realm;
-	char b1[16];
-
-	if (!no_output) {
-		fprintf(fp, "#%s\n", kern_db->signature);
-		fprintf(fp,
-"%-10s "
-"%-10s "
-"%-10s "
-"%-10s "
-"%-10s "
-"\n"
-		       , "Realm", "BytesTo", "PktsTo", "BytesFrom", "PktsFrom"); 
-		fprintf(fp,
-"%-10s "
-"%-10s "
-"%-10s "
-"%-10s "
-"%-10s "
-"\n"
-		       , "", "BPSTo", "PPSTo", "BPSFrom", "PPSFrom"); 
-	}
-
-	for (realm=0; realm<256; realm++) {
-		int ovfl = 0;
-		int i;
-		unsigned long long *val;
-		double		   *rate;
-		unsigned long long rval[4];
-
-		if (!(rmap[realm>>5] & (1<<(realm&0x1f))))
-			continue;
-
-		val = &kern_db->val[realm*4];
-		rate = &kern_db->rate[realm*4];
-
-		for (k=0; k<4; k++) {
-			rval[k] = val[k];
-			if (rval[k] < hist_db->val[realm*4+k])
-				ovfl = 1;
-			else
-				rval[k] -= hist_db->val[realm*4+k];
-		}
-		if (ovfl) {
-			for (k=0; k<4; k++)
-				rval[k] = val[k];
-		}
-		if (hist_db) {
-			memcpy(&hist_db->val[realm*4], val, sizeof(*val)*4);
-		}
-
-		if (no_output)
-			continue;
-
-		if (!dump_zeros &&
-		    !rval[0] && !rate[0] &&
-		    !rval[1] && !rate[1] &&
-		    !rval[2] && !rate[2] &&
-		    !rval[3] && !rate[3])
-			continue;
-
-
-		fprintf(fp, "%-10s", rtnl_rtrealm_n2a(realm, b1, sizeof(b1)));
-		for (i = 0; i < 4; i++)
-			format_count(fp, rval[i]); 
-		fprintf(fp, "\n%-10s", "");
-		for (i = 0; i < 4; i++)
-			format_rate(fp, rate[i]); 
-		fprintf(fp, "\n");
-	}
-}
-
-
-static int children;
-
-void sigchild(int signo)
-{
-}
-
-/* Server side only: read kernel data, update tables, calculate rates. */ 
-
-void update_db(int interval)
-{
-	int i;
-	__u32 *ival;
-	__u32 _ival[256*4];
-
-	ival = read_kern_table(_ival);
-
-	for (i=0; i<256*4; i++) {
-		double sample;
-		__u32 incr = ival[i] - kern_db->ival[i];
-
-		if (ival[i] == 0 && incr == 0 &&
-		    kern_db->val[i] == 0 && kern_db->rate[i] == 0)
-			continue;
-
-		kern_db->val[i] += incr;
-		kern_db->ival[i] = ival[i];
-		sample = (double)(incr*1000)/interval;
-		if (interval >= scan_interval) {
-			kern_db->rate[i] += W*(sample-kern_db->rate[i]);
-		} else if (interval >= 1000) {
-			if (interval >= time_constant) {
-				kern_db->rate[i] = sample;
-			} else {
-				double w = W*(double)interval/scan_interval;
-				kern_db->rate[i] += w*(sample-kern_db->rate[i]);
-			}
-		}
-	}
-}
-
-void send_db(int fd)
-{
-	int tot = 0;
-
-	while (tot < sizeof(*kern_db)) {
-		int n = write(fd, ((char*)kern_db) + tot, sizeof(*kern_db)-tot);
-		if (n < 0) {
-			if (errno == EINTR)
-				continue;
-			return;
-		}
-		tot += n;
-	}
-}
-
-
-
-#define T_DIFF(a,b) (((a).tv_sec-(b).tv_sec)*1000 + ((a).tv_usec-(b).tv_usec)/1000)
-
-
-void pad_kern_table(struct rtacct_data *dat, __u32 *ival)
-{
-	int i;
-	memset(dat->rate, 0, sizeof(dat->rate));
-	if (dat->ival != ival)
-		memcpy(dat->ival, ival, sizeof(dat->ival));
-	for (i=0; i<256*4; i++)
-		dat->val[i] = ival[i];
-}
-
-void server_loop(int fd)
-{
-	struct timeval snaptime = { 0 };
-	struct pollfd p;
-	p.fd = fd;
-	p.events = p.revents = POLLIN;
-
-	sprintf(kern_db->signature, 
-		"%u.%lu sampling_interval=%d time_const=%d",
-		(unsigned) getpid(), (unsigned long)random(), 
-		scan_interval/1000, time_constant/1000);
-
-	pad_kern_table(kern_db, read_kern_table(kern_db->ival));
-
-	for (;;) {
-		int status;
-		int tdiff;
-		struct timeval now;
-		gettimeofday(&now, NULL);
-		tdiff = T_DIFF(now, snaptime);
-		if (tdiff >= scan_interval) {
-			update_db(tdiff);
-			snaptime = now;
-			tdiff = 0;
-		}
-		if (poll(&p, 1, tdiff + scan_interval) > 0
-		    && (p.revents&POLLIN)) {
-			int clnt = accept(fd, NULL, NULL);
-			if (clnt >= 0) {
-				pid_t pid;
-				if (children >= 5) {
-					close(clnt);
-				} else if ((pid = fork()) != 0) {
-					if (pid>0)
-						children++;
-					close(clnt);
-				} else {
-					if (tdiff > 0)
-						update_db(tdiff);
-					send_db(clnt);
-					exit(0);
-				}
-			}
-		}
-		while (children && waitpid(-1, &status, WNOHANG) > 0)
-			children--;
-	}
-}
-
-int verify_forging(int fd)
-{
-	struct ucred cred;
-	socklen_t olen = sizeof(cred);
-
-	if (getsockopt(fd, SOL_SOCKET, SO_PEERCRED, (void*)&cred, &olen) ||
-	    olen < sizeof(cred))
-		return -1;
-	if (cred.uid == getuid() || cred.uid == 0)
-		return 0;
-	return -1;
-}
-
-static void usage(void) __attribute__((noreturn));
-
-static void usage(void)
-{
-	fprintf(stderr,
-"Usage: rtacct [ -h?vVzrnasd:t: ] [ ListOfRealms ]\n"
-		);
-	exit(-1);
-}
-
-int main(int argc, char *argv[])
-{
-	char hist_name[128];
-	struct sockaddr_un sun;
-	int ch;
-	int fd;
-
-	while ((ch = getopt(argc, argv, "h?vVzrM:nasd:t:")) != EOF) {
-		switch(ch) {
-		case 'z':
-			dump_zeros = 1;
-			break;
-		case 'r':
-			reset_history = 1;
-			break;
-		case 'a':
-			ignore_history = 1;
-			break;
-		case 's':
-			no_update = 1;
-			break;
-		case 'n':
-			no_output = 1;
-			break;
-		case 'd':
-			scan_interval = 1000*atoi(optarg);
-			break;
-		case 't':
-			if (sscanf(optarg, "%d", &time_constant) != 1 ||
-			    time_constant <= 0) {
-				fprintf(stderr, "rtacct: invalid time constant divisor\n");
-				exit(-1);
-			}
-			break;
-		case 'v':
-		case 'V':
-			printf("rtacct utility, iproute2-ss%s\n", SNAPSHOT);
-			exit(0);
-		case 'M':
-			/* Some secret undocumented option, nobody
-			 * is expected to ask about its sense. See?
-			 */
-			sscanf(optarg, "%lx", &magic_number);
-			break;
-		case 'h':
-		case '?':
-		default:
-			usage();
-		}
-	}
-
-	argc -= optind;
-	argv += optind;
-
-	if (argc) {
-		while (argc > 0) {
-			__u32 realm;
-			if (rtnl_rtrealm_a2n(&realm, argv[0])) {
-				fprintf(stderr, "Warning: realm \"%s\" does not exist.\n", argv[0]);
-				exit(-1);
-			}
-			rmap[realm>>5] |= (1<<(realm&0x1f));
-			argc--; argv++;
-		}
-	} else {
-		memset(rmap, ~0, sizeof(rmap));
-		/* Always suppress zeros. */
-		dump_zeros = 0;
-	}
-
-	sun.sun_family = AF_UNIX;
-	sun.sun_path[0] = 0;
-	sprintf(sun.sun_path+1, "rtacct%d", getuid());
-
-	if (scan_interval > 0) {
-		if (time_constant == 0)
-			time_constant = 60;
-		time_constant *= 1000;
-		W = 1 - 1/exp(log(10)*(double)scan_interval/time_constant);
-		if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) {
-			perror("rtacct: socket");
-			exit(-1);
-		}
-		if (bind(fd, (struct sockaddr*)&sun, 2+1+strlen(sun.sun_path+1)) < 0) {
-			perror("rtacct: bind");
-			exit(-1);
-		}
-		if (listen(fd, 5) < 0) {
-			perror("rtacct: listen");
-			exit(-1);
-		}
-		if (fork())
-			exit(0);
-		chdir("/");
-		close(0); close(1); close(2); setsid();
-		signal(SIGPIPE, SIG_IGN);
-		signal(SIGCHLD, sigchild);
-		server_loop(fd);
-		exit(0);
-	}
-
-	if (getenv("RTACCT_HISTORY"))
-		snprintf(hist_name, sizeof(hist_name), getenv("RTACCT_HISTORY"));
-	else
-		sprintf(hist_name, "/tmp/.rtacct.u%d", getuid());
-
-	if (reset_history)
-		unlink(hist_name);
-
-	if (!ignore_history || !no_update) {
-		struct stat stb;
-
-		fd = open(hist_name, O_RDWR|O_CREAT|O_NOFOLLOW, 0600);
-		if (fd < 0) {
-			perror("rtacct: open history file");
-			exit(-1);
-		}
-		if (flock(fd, LOCK_EX)) {
-			perror("rtacct: flock history file");
-			exit(-1);
-		}
-		if (fstat(fd, &stb) != 0) {
-			perror("rtacct: fstat history file");
-			exit(-1);
-		}
-		if (stb.st_nlink != 1 || stb.st_uid != getuid()) {
-			fprintf(stderr, "rtacct: something is so wrong with history file, that I prefer not to proceed.\n");
-			exit(-1);
-		}
-		if (stb.st_size != sizeof(*hist_db))
-			write(fd, kern_db, sizeof(*hist_db));
-
-		hist_db = mmap(NULL, sizeof(*hist_db),
-			       PROT_READ|PROT_WRITE,
-			       no_update ? MAP_PRIVATE : MAP_SHARED,
-			       fd, 0);
-
-		if ((unsigned long)hist_db == ~0UL) {
-			perror("mmap");
-			exit(-1);
-		}
-
-		if (!ignore_history) {
-			FILE *tfp;
-			long uptime;
-			if ((tfp = fopen("/proc/uptime", "r")) != NULL) {
-				if (fscanf(tfp, "%ld", &uptime) != 1)
-					uptime = -1;
-				fclose(tfp);
-			}
-
-			if (uptime >= 0 && time(NULL) >= stb.st_mtime+uptime) {
-				fprintf(stderr, "rtacct: history is aged out, resetting\n");
-				memset(hist_db, 0, sizeof(*hist_db));
-			}
-		}
-
-		close(fd);
-	}
-
-	if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) >= 0 &&
-	    (connect(fd, (struct sockaddr*)&sun, 2+1+strlen(sun.sun_path+1)) == 0
-	     || (strcpy(sun.sun_path+1, "rtacct0"),
-		 connect(fd, (struct sockaddr*)&sun, 2+1+strlen(sun.sun_path+1)) == 0))
-	    && verify_forging(fd) == 0) {
-		nread(fd, (char*)kern_db, sizeof(*kern_db));
-		if (hist_db && hist_db->signature[0] &&
-		    strcmp(kern_db->signature, hist_db->signature)) {
-			fprintf(stderr, "rtacct: history is stale, ignoring it.\n");
-			hist_db = NULL;
-		}
-		close(fd);
-	} else {
-		if (fd >= 0)
-			close(fd);
-
-		if (hist_db && hist_db->signature[0] &&
-		    strcmp(hist_db->signature, "kernel")) {
-			fprintf(stderr, "rtacct: history is stale, ignoring it.\n");
-			hist_db = NULL;
-		}
-
-		pad_kern_table(kern_db, read_kern_table(kern_db->ival));
-		strcpy(kern_db->signature, "kernel");
-	}
-
-	if (ignore_history || hist_db == NULL)
-		dump_abs_db(stdout);
-	else
-		dump_incr_db(stdout);
-
-	exit(0);
-}