From 23276afe270009420cfbc52bffafdd25ac0817fe Mon Sep 17 00:00:00 2001
From: Li Zhou <li.zhou@windriver.com>
Date: Thu, 14 Jan 2016 17:01:29 +0800
Subject: [PATCH 1/3] net-tools: add SCTP support for netstat

Upstream-Status: pending

Signed-off-by: Li Zhou <li.zhou@windriver.com>
---
 netstat.c    | 411 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 statistics.c |  68 +++++++++-
 2 files changed, 465 insertions(+), 14 deletions(-)

diff --git a/netstat.c b/netstat.c
index 1fb9e0c..5d1a4a1 100644
--- a/netstat.c
+++ b/netstat.c
@@ -58,6 +58,7 @@
  *
  *990420 {1.38} Tuan Hoang              removed a useless assignment from igmp_do_one()
  *20010404 {1.39} Arnaldo Carvalho de Melo - use setlocale
+ *20050516 {1.40} Ivan Skytte Joergensen:Added SCTP support
  *
  *              This program is free software; you can redistribute it
  *              and/or  modify it under  the terms of  the GNU General
@@ -105,7 +106,7 @@
 #endif
 
 /* prototypes for statistics.c */
-void parsesnmp(int, int, int);
+void parsesnmp(int, int, int, int);
 void inittab(void);
 void parsesnmp6(int, int, int);
 void inittab6(void);
@@ -118,6 +119,28 @@ typedef enum {
     SS_DISCONNECTING		/* in process of disconnecting  */
 } socket_state;
 
+#define SCTP_NSTATES  9         /* The number of states in array*/
+
+static const char *sctp_state[] = {
+    N_("EMPTY"),
+    N_("CLOSED"),
+    N_("COOKIE_WAIT"),
+    N_("COOKIE_ECHOED"),
+    N_("ESTABLISHED"),
+    N_("SHUTDOWN_PENDING"),
+    N_("SHUTDOWN_SENT"),
+    N_("SHUTDOWN_RECEIVED"),
+    N_("SHUTDOWN_ACK_SENT")
+};
+
+#define SCTP_NTYPES 3           /* The number of types in array */
+
+static const char *sctp_type[] = {
+    N_("udp"),
+    N_("udp-high-bw"),
+    N_("tcp")
+};
+
 #define SO_ACCEPTCON    (1<<16)	/* performed a listen           */
 #define SO_WAITDATA     (1<<17)	/* wait data to read            */
 #define SO_NOSPACE      (1<<18)	/* no space to write            */
@@ -148,6 +171,7 @@ int flag_opt = 0;
 int flag_raw = 0;
 int flag_tcp = 0;
 int flag_udp = 0;
+int flag_sctp= 0;
 int flag_igmp= 0;
 int flag_rom = 0;
 int flag_exp = 1;
@@ -990,6 +1014,365 @@ static int udp_info(void)
 	       udp_do_one);
 }
 
+static const char *sctp_socket_type_str(int type) {
+    if(type>=0 && type<SCTP_NTYPES)
+	return sctp_type[type];
+    else {
+	static char type_str_buf[64];
+	sprintf(type_str_buf,"UNKNOWN(%d)",type);
+	return type_str_buf;
+    }
+}
+
+static const char *sctp_state_str(int state)
+{
+    if(state>=0 && state<SCTP_NSTATES)
+	return sctp_state[state];
+    else {
+	static char state_str_buf[64];
+	sprintf(state_str_buf,"UNKNOWN(%d)",state);
+	return state_str_buf;
+    }
+}
+
+static const char *sctp_socket_state_str(int state)
+{
+    if(state>=0 && state<=10)
+        return tcp_state[state];
+    else {
+	static char state_str_buf[64];
+	sprintf(state_str_buf,"UNKNOWN(%d)",state);
+	return state_str_buf;
+    }
+}
+
+static struct aftype *process_sctp_addr_str(const char *addr_str, struct sockaddr *sa)
+{
+    if (strchr(addr_str,':')) {
+#if HAVE_AFINET6
+	extern struct aftype inet6_aftype;
+	/* Demangle what the kernel gives us */
+	struct in6_addr in6;
+	char addr6_str[INET6_ADDRSTRLEN];
+	unsigned u0,u1,u2,u3,u4,u5,u6,u7;
+	sscanf(addr_str, "%04X:%04X:%04X:%04X:%04X:%04X:%04X:%04X",
+	       &u0, &u1, &u2, &u3, &u4, &u5, &u6, &u7);
+	in6.s6_addr16[0] = htons(u0);
+	in6.s6_addr16[1] = htons(u1);
+	in6.s6_addr16[2] = htons(u2);
+	in6.s6_addr16[3] = htons(u3);
+	in6.s6_addr16[4] = htons(u4);
+	in6.s6_addr16[5] = htons(u5);
+	in6.s6_addr16[6] = htons(u6);
+	in6.s6_addr16[7] = htons(u7);
+
+	inet_ntop(AF_INET6, &in6, addr6_str, sizeof(addr6_str));
+	inet6_aftype.input(1, addr6_str, sa);
+	sa->sa_family = AF_INET6;
+#endif
+    } else {
+    	((struct sockaddr_in*)sa)->sin_addr.s_addr = inet_addr(addr_str);
+	sa->sa_family = AF_INET;
+    }
+    return get_afntype(sa->sa_family);
+}
+
+static void sctp_eps_do_one(int lnr, char *line)
+{
+    char buffer[1024];
+    int type, state, port;
+    int uid;
+    unsigned long inode;
+    
+    struct aftype *ap;
+#if HAVE_AFINET6
+    struct sockaddr_in6 localaddr;
+#else
+    struct sockaddr_in localaddr;
+#endif
+    const char *sty_str;
+    const char *sst_str;
+    const char *lport_str;
+    const char *uid_str;
+    const char *inode_str;
+    const char *pladdr_str;
+    char *laddrs_str;
+    
+    if(lnr == 0) {
+	/* ENDPT     SOCK   STY SST HBKT LPORT   uid inode pladdr LADDRS*/
+	return;
+    }
+    
+    strtok(line," \t\n"); /*skip ptr*/
+    strtok(0," \t\n");    /*skip ptr*/
+    sty_str = strtok(0," \t\n");
+    sst_str = strtok(0," \t\n");
+    strtok(0," \t\n"); /*skip hash bucket*/
+    lport_str=strtok(0," \t\n");
+    uid_str = strtok(0," \t\n");
+    inode_str = strtok(0," \t\n");
+    pladdr_str = strtok(0," \t\n");
+    laddrs_str=strtok(0,"\t\n");
+    
+    type = atoi(sty_str);
+    state = atoi(sst_str);
+    port = atoi(lport_str);
+    uid = atoi(uid_str);
+    inode = strtoul(inode_str,0,0);
+    
+    if(flag_sctp<=1) {
+	/* only print the primary address */
+	char local_addr[64];
+	char local_port[16];
+	
+	ap = process_sctp_addr_str(pladdr_str, (struct sockaddr*)&localaddr);
+	if(ap)
+	    safe_strncpy(local_addr,
+	                 ap->sprint((struct sockaddr *) &localaddr, flag_not),
+	                 sizeof(local_addr));
+	else
+	    sprintf(local_addr,_("unsupported address family %d"), ((struct sockaddr*)&localaddr)->sa_family);
+	
+	snprintf(local_port, sizeof(local_port), "%s",
+	         get_sname(htons(port), "sctp",
+	                   flag_not & FLAG_NUM_PORT));
+	
+	printf("sctp                ");
+	sprintf(buffer,"%s:%s", local_addr, local_port);
+	printf("%-47s", buffer);
+    	printf(" %-12s", sctp_socket_state_str(state));
+    } else {
+    	/*print all addresses*/
+	const char *this_local_addr;
+	int first=1;
+	char local_port[16];
+	snprintf(local_port, sizeof(local_port), "%s",
+		 get_sname(htons(port), "sctp",
+			   flag_not & FLAG_NUM_PORT));
+	for(this_local_addr=strtok(laddrs_str," \t\n");
+	    this_local_addr;
+	    this_local_addr=strtok(0," \t\n"))
+	{
+	    char local_addr[64];
+	    ap = process_sctp_addr_str(this_local_addr, (struct sockaddr*)&localaddr);
+	    if(ap)
+		safe_strncpy(local_addr,
+		             ap->sprint((struct sockaddr *) &localaddr, flag_not),
+		             sizeof(local_addr));
+	    else
+		sprintf(local_addr,_("unsupported address family %d"), ((struct sockaddr*)&localaddr)->sa_family);
+
+	    if(!first) printf("\n");
+	    if(first)
+	        printf("sctp                ");
+	    else
+	        printf("                    ");
+	    sprintf(buffer,"%s:%s", local_addr, local_port);
+	    printf("%-47s", buffer);
+	    printf(" %-12s", first?sctp_socket_state_str(state):"");
+	    first = 0;
+	}
+    }
+
+    finish_this_one(uid,inode,"");
+}
+
+static void sctp_assoc_do_one(int lnr, char *line)
+{
+    char buffer[1024];
+    int type, state, state2, lport,rport;
+    int uid;
+    unsigned rxqueue,txqueue;
+    unsigned long inode;
+    
+    struct aftype *ap;
+#if HAVE_AFINET6
+    struct sockaddr_in6 localaddr,remoteaddr;
+#else
+    struct sockaddr_in localaddr,remoteaddr;
+#endif
+    const char *sty_str;
+    const char *sst_str;
+    const char *st_str;
+    const char *txqueue_str;
+    const char *rxqueue_str;
+    const char *lport_str,*rport_str;
+    const char *uid_str;
+    const char *inode_str;
+    const char *pladdr_str;
+    char *laddrs_str;
+    const char *praddr_str;
+    char *raddrs_str;
+    
+    if(lnr == 0) {
+	/* ASSOC     SOCK   STY SST ST HBKT tx_queue rx_queue uid inode LPORT RPORT pladdr praddr LADDRS <-> RADDRS*/
+	return;
+    }
+    
+    strtok(line," \t\n"); /*skip ptr*/
+    strtok(0," \t\n");    /*skip ptr*/
+    sty_str = strtok(0," \t\n");
+    sst_str = strtok(0," \t\n");
+    st_str = strtok(0," \t\n");
+    strtok(0," \t\n"); /*skip hash bucket*/
+    txqueue_str =  strtok(0," \t\n");
+    rxqueue_str =  strtok(0," \t\n");
+    uid_str = strtok(0," \t\n");
+    inode_str = strtok(0," \t\n");
+    lport_str=strtok(0," \t\n");
+    rport_str=strtok(0," \t\n");
+    pladdr_str = strtok(0," \t\n");
+    praddr_str = strtok(0," \t\n");
+    laddrs_str=strtok(0,"<->\t\n");
+    raddrs_str=strtok(0,"<->\t\n");
+
+    type = atoi(sty_str);
+    state = atoi(sst_str);
+    state2 = atoi(st_str);
+    txqueue = atoi(txqueue_str);
+    rxqueue = atoi(rxqueue_str);
+    uid = atoi(uid_str);
+    inode = strtoul(inode_str,0,0);
+    lport = atoi(lport_str);
+    rport = atoi(rport_str);
+    
+    if(flag_sctp<=1) {
+	/* only print the primary addresses */
+	char local_addr[64];
+	char local_port[16];
+	char remote_addr[64];
+	char remote_port[16];
+	
+	ap = process_sctp_addr_str(pladdr_str, (struct sockaddr*)&localaddr);
+	if(ap)
+	    safe_strncpy(local_addr,
+	                 ap->sprint((struct sockaddr *) &localaddr, flag_not),
+	                 sizeof(local_addr));
+	else
+	    sprintf(local_addr,_("unsupported address family %d"), ((struct sockaddr*)&localaddr)->sa_family);
+	
+	snprintf(local_port, sizeof(local_port), "%s",
+	         get_sname(htons(lport), "sctp",
+	                   flag_not & FLAG_NUM_PORT));
+	
+	ap = process_sctp_addr_str(praddr_str, (struct sockaddr*)&remoteaddr);
+	if(ap)
+	    safe_strncpy(remote_addr,
+	                 ap->sprint((struct sockaddr *) &remoteaddr, flag_not),
+	                 sizeof(remote_addr));
+	else
+	    sprintf(remote_addr,_("unsupported address family %d"), ((struct sockaddr*)&remoteaddr)->sa_family);
+	
+	snprintf(remote_port, sizeof(remote_port), "%s",
+		 get_sname(htons(rport), "sctp",
+			   flag_not & FLAG_NUM_PORT));
+
+	printf("sctp");
+	printf("  %6u %6u ", rxqueue, txqueue);
+	sprintf(buffer,"%s:%s", local_addr, local_port);
+	printf("%-23s", buffer);
+	printf(" ");
+	sprintf(buffer,"%s:%s", remote_addr, remote_port);
+	printf("%-23s", buffer);
+    	printf(" %-12s", sctp_socket_state_str(state));
+    } else {
+    	/*print all addresses*/
+	const char *this_local_addr;
+	const char *this_remote_addr;
+	char *ss1,*ss2;
+	int first=1;
+	char local_port[16];
+	char remote_port[16];
+	snprintf(local_port, sizeof(local_port), "%s",
+	         get_sname(htons(lport), "sctp",
+	                   flag_not & FLAG_NUM_PORT));
+	snprintf(remote_port, sizeof(remote_port), "%s",
+	         get_sname(htons(rport), "sctp",
+	                   flag_not & FLAG_NUM_PORT));
+
+	this_local_addr=strtok_r(laddrs_str," \t\n",&ss1);
+	this_remote_addr=strtok_r(raddrs_str," \t\n",&ss2);
+	while(this_local_addr || this_remote_addr) {
+	    char local_addr[64];
+	    char remote_addr[64];
+	    if(this_local_addr) {
+		ap = process_sctp_addr_str(this_local_addr, (struct sockaddr*)&localaddr);
+		if(ap)
+		    safe_strncpy(local_addr,
+		                 ap->sprint((struct sockaddr *) &localaddr, flag_not),
+		                 sizeof(local_addr));
+		else
+		    sprintf(local_addr,_("unsupported address family %d"), ((struct sockaddr*)&localaddr)->sa_family);
+	    }
+	    if(this_remote_addr) {
+		ap = process_sctp_addr_str(this_remote_addr, (struct sockaddr*)&remoteaddr);
+		if(ap)
+		    safe_strncpy(remote_addr,
+		                 ap->sprint((struct sockaddr *) &remoteaddr, flag_not),
+		                 sizeof(remote_addr));
+		else
+		    sprintf(remote_addr,_("unsupported address family %d"), ((struct sockaddr*)&remoteaddr)->sa_family);
+	    }
+
+	    if(!first) printf("\n");
+	    if(first)
+		printf("sctp  %6u %6u ", rxqueue, txqueue);
+	    else
+		printf("                    ");
+	    if(this_local_addr) {
+		if(first)
+		    sprintf(buffer,"%s:%s", local_addr, local_port);
+		else
+		    sprintf(buffer,"%s", local_addr);
+		printf("%-23s", buffer);
+	    } else
+	    	printf("%-23s", "");
+	    printf(" ");
+	    if(this_remote_addr) {
+		if(first)
+		    sprintf(buffer,"%s:%s", remote_addr, remote_port);
+		else
+		    sprintf(buffer,"%s", remote_addr);
+		printf("%-23s", buffer);
+	    } else
+		printf("%-23s", "");
+
+	    printf(" %-12s", first?sctp_socket_state_str(state):"");
+
+	    first = 0;
+	    this_local_addr=strtok_r(0," \t\n",&ss1);
+	    this_remote_addr=strtok_r(0," \t\n",&ss2);
+	}
+    }
+
+    finish_this_one(uid,inode,"");
+}
+
+static int sctp_info_eps(void)
+{
+#if !defined(_PATH_PROCNET_SCTP_EPS)
+#define	_PATH_PROCNET_SCTP_EPS	"/proc/net/sctp/eps"
+#endif
+    INFO_GUTS(_PATH_PROCNET_SCTP_EPS, "AF INET (sctp)",
+              sctp_eps_do_one);
+}
+
+static int sctp_info_assocs(void)
+{
+#if !defined(_PATH_PROCNET_SCTP_ASSOCS)
+#define	_PATH_PROCNET_SCTP_ASSOCS	"/proc/net/sctp/assocs"
+#endif
+    INFO_GUTS(_PATH_PROCNET_SCTP_ASSOCS, "AF INET (sctp)",
+              sctp_assoc_do_one);
+}
+
+static int sctp_info(void)
+{
+    if(flag_all)
+    	sctp_info_eps();
+    return sctp_info_assocs();
+}
+
 static void raw_do_one(int lnr, const char *line)
 {
     char buffer[8192], local_addr[64], rem_addr[64];
@@ -1549,7 +1932,7 @@ static void usage(void)
     fprintf(stderr, _("        -F, --fib                display Forwarding Information Base (default)\n"));
     fprintf(stderr, _("        -C, --cache              display routing cache instead of FIB\n\n"));
 
-    fprintf(stderr, _("  <Socket>={-t|--tcp} {-u|--udp} {-w|--raw} {-x|--unix} --ax25 --ipx --netrom\n"));
+    fprintf(stderr, _("  <Socket>={-t|--tcp} {-u|--udp} {-S|--sctp} {-w|--raw} {-x|--unix} --ax25 --ipx --netrom\n"));
     fprintf(stderr, _("  <AF>=Use '-6|-4' or '-A <af>' or '--<af>'; default: %s\n"), DFLT_AF);
     fprintf(stderr, _("  List of possible address families (which support routing):\n"));
     print_aflist(1); /* 1 = routeable */
@@ -1574,6 +1957,7 @@ int main
 	{"protocol", 1, 0, 'A'},
 	{"tcp", 0, 0, 't'},
 	{"udp", 0, 0, 'u'},
+	{"sctp", 0, 0, 'S' },
 	{"raw", 0, 0, 'w'},
 	{"unix", 0, 0, 'x'},
 	{"listening", 0, 0, 'l'},
@@ -1604,7 +1988,7 @@ int main
     getroute_init();		/* Set up AF routing support */
 
     afname[0] = '\0';
-    while ((i = getopt_long(argc, argv, "MCFA:acdegphinNorstuWVv?wxl64", longopts, &lop)) != EOF)
+    while ((i = getopt_long(argc, argv, "MCFA:acdegphinNorstuSWVv?wxl64", longopts, &lop)) != EOF)
 	switch (i) {
 	case -1:
 	    break;
@@ -1696,10 +2080,12 @@ int main
 	case 't':
 	    flag_tcp++;
 	    break;
-
 	case 'u':
 	    flag_udp++;
 	    break;
+	case 'S':
+	    flag_sctp++;
+	    break;
 	case 'w':
 	    flag_raw++;
 	    break;
@@ -1717,13 +2103,13 @@ int main
     if (flag_int + flag_rou + flag_mas + flag_sta > 1)
 	usage();
 
-    if ((flag_inet || flag_inet6 || flag_sta) && !(flag_tcp || flag_udp || flag_raw))
-	flag_tcp = flag_udp = flag_raw = 1;
+    if ((flag_inet || flag_inet6 || flag_sta) && !(flag_tcp || flag_udp || flag_sctp || flag_raw))
+	flag_tcp = flag_udp = flag_sctp = flag_raw = 1;
 
-    if ((flag_tcp || flag_udp || flag_raw || flag_igmp) && !(flag_inet || flag_inet6))
+    if ((flag_tcp || flag_udp || flag_sctp || flag_raw || flag_igmp) && !(flag_inet || flag_inet6))
         flag_inet = flag_inet6 = 1;
 
-    flag_arg = flag_tcp + flag_udp + flag_raw + flag_unx + flag_ipx
+    flag_arg = flag_tcp + flag_udp + flag_sctp + flag_raw + flag_unx + flag_ipx
 	+ flag_ax25 + flag_netrom + flag_igmp + flag_x25;
 
     if (flag_mas) {
@@ -1751,7 +2137,7 @@ int main
         char buf[256];
         if (!afname[0]) {
             inittab();
-            parsesnmp(flag_raw, flag_tcp, flag_udp);
+            parsesnmp(flag_raw, flag_tcp, flag_udp, flag_sctp);
         } else {
             safe_strncpy(buf, afname, sizeof(buf));
             tmp1 = buf;
@@ -1804,7 +2190,7 @@ int main
 	return (i);
     }
     for (;;) {
-	if (!flag_arg || flag_tcp || flag_udp || flag_raw) {
+	if (!flag_arg || flag_tcp || flag_udp || flag_sctp || flag_raw) {
 #if HAVE_AFINET
 	    prg_cache_load();
 	    printf(_("Active Internet connections "));	/* xxx */
@@ -1843,6 +2229,11 @@ int main
 	    if (i)
 		return (i);
 	}
+	if (!flag_arg || flag_sctp) {
+	    i = sctp_info();
+	    if (i)
+		return (i);
+	}
 	if (!flag_arg || flag_raw) {
 	    i = raw_info();
 	    if (i)
diff --git a/statistics.c b/statistics.c
index 03600d7..eb8d7dc 100644
--- a/statistics.c
+++ b/statistics.c
@@ -21,7 +21,7 @@
 #define UFWARN(x)
 #endif
 
-int print_static,f_raw,f_tcp,f_udp,f_unknown = 1;
+int print_static,f_raw,f_tcp,f_udp,f_sctp,f_unknown = 1;
 
 enum State {
     number = 0, opt_number, i_forward, i_inp_icmp, i_outp_icmp, i_rto_alg,
@@ -297,6 +297,27 @@ struct entry Tcpexttab[] =
     { "TCPRenoRecoveryFail", N_("%u classic Reno fast retransmits failed"), opt_number },
 };
 
+struct entry Sctptab[] =
+{
+    {"SctpCurrEstab", N_("%u Current Associations"), number},
+    {"SctpActiveEstabs", N_("%u Active Associations"), number},
+    {"SctpPassiveEstabs", N_("%u Passive Associations"), number},
+    {"SctpAborteds", N_("%u Number of Aborteds "), number},
+    {"SctpShutdowns", N_("%u Number of Graceful Terminations"), number},
+    {"SctpOutOfBlues", N_("%u Number of Out of Blue packets"), number},
+    {"SctpChecksumErrors", N_("%u Number of Packets with invalid Checksum"), number},
+    {"SctpOutCtrlChunks", N_("%u Number of control chunks sent"), number},
+    {"SctpOutOrderChunks", N_("%u Number of ordered chunks sent"), number},
+    {"SctpOutUnorderChunks", N_("%u Number of Unordered chunks sent"), number},
+    {"SctpInCtrlChunks", N_("%u Number of control chunks received"), number},
+    {"SctpInOrderChunks", N_("%u Number of ordered chunks received"), number},
+    {"SctpInUnorderChunks", N_("%u Number of Unordered chunks received"), number},
+    {"SctpFragUsrMsgs", N_("%u Number of messages fragmented"), number},
+    {"SctpReasmUsrMsgs", N_("%u Number of messages reassembled "), number},
+    {"SctpOutSCTPPacks", N_("%u Number of SCTP packets sent"), number},
+    {"SctpInSCTPPacks", N_("%u Number of SCTP packets received"), number},
+};
+
 struct tabtab {
     char *title;
     struct entry *tab;
@@ -310,6 +331,7 @@ struct tabtab snmptabs[] =
     {"Icmp", Icmptab, sizeof(Icmptab), &f_raw},
     {"Tcp", Tcptab, sizeof(Tcptab), &f_tcp},
     {"Udp", Udptab, sizeof(Udptab), &f_udp},
+    {"Sctp", Sctptab, sizeof(Sctptab), &f_sctp},
     {"TcpExt", Tcpexttab, sizeof(Tcpexttab), &f_tcp},
     {NULL}
 };
@@ -499,12 +521,40 @@ void process6_fd(FILE *f)
 
 }
 
-void parsesnmp(int flag_raw, int flag_tcp, int flag_udp)
+/* Process a file with name-value lines (like /proc/net/sctp/snmp) */
+void process_fd2(FILE *f, const char *filename)
+{
+    char buf1[1024];
+    char *sp;
+    struct tabtab *tab;
+    
+    tab = newtable(snmptabs, "Sctp");
+    
+    while (fgets(buf1, sizeof buf1, f)) {
+	sp = buf1 + strcspn(buf1, " \t\n");
+	if (!sp)
+	    goto formaterr;
+	*sp = '\0';
+    	sp++;
+
+	sp += strspn(sp, " \t\n"); 
+
+	if (*sp != '\0' && *(tab->flag)) 	
+	    printval(tab, buf1, strtoul(sp, 0, 10));
+    }
+  return;
+  
+formaterr:
+  fprintf(stderr,_("error parsing %s\n"), filename);
+  return;
+}
+
+void parsesnmp(int flag_raw, int flag_tcp, int flag_udp, int flag_sctp)
 {
     FILE *f;
 
-    f_raw = flag_raw; f_tcp = flag_tcp; f_udp = flag_udp;
-    
+    f_raw = flag_raw; f_tcp = flag_tcp; f_udp = flag_udp; f_sctp = flag_sctp;
+
     f = proc_fopen("/proc/net/snmp");
     if (!f) {
 	perror(_("cannot open /proc/net/snmp"));
@@ -530,6 +580,16 @@ void parsesnmp(int flag_raw, int flag_tcp, int flag_udp)
     
         fclose(f);
     }
+
+    f = fopen("/proc/net/sctp/snmp", "r");
+    if (f) {
+	process_fd2(f,"/proc/net/sctp/snmp");
+	if (ferror(f))
+	    perror("/proc/net/sctp/snmp");
+
+	fclose(f);
+    }
+
     return;
 }
     
-- 
1.8.5.2.233.g932f7e4