2 * Copyright (c) 2013 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Matthew Dillon <dillon@backplane.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #include <sys/param.h>
35 #include <sys/queue.h>
37 #include <sys/socket.h>
38 #include <sys/socketvar.h>
39 #include <sys/protosw.h>
40 #include <sys/sysctl.h>
42 #include <netinet/in.h>
43 #include <arpa/inet.h>
44 #include <net/route.h>
45 #include <netinet/in_systm.h>
46 #include <netinet/ip.h>
48 #include <netinet/ip6.h>
50 #include <netinet/in_pcb.h>
51 #include <netinet/ip_icmp.h>
52 #include <netinet/icmp_var.h>
53 #include <netinet/ip_var.h>
54 #include <netinet/tcp.h>
55 #include <netinet/tcpip.h>
56 #include <netinet/tcp_seq.h>
57 #include <netinet/tcp_fsm.h>
58 #include <netinet/tcp_timer.h>
59 #include <netinet/tcp_var.h>
60 #include <netinet/tcp_debug.h>
61 #include <netinet/udp.h>
62 #include <netinet/udp_var.h>
75 RB_ENTRY(mytcpcb) rb_node;
78 struct xtcpcb last_xtcp;
82 mytcpcb_cmp(struct mytcpcb *tcp1, struct mytcpcb *tcp2)
87 * Low local or foreign port comes first (local has priority).
89 if (ntohs(tcp1->xtcp.xt_inp.inp_inc.inc_ie.ie_lport) >= 1024 &&
90 ntohs(tcp2->xtcp.xt_inp.inp_inc.inc_ie.ie_lport) >= 1024) {
91 if (ntohs(tcp1->xtcp.xt_inp.inp_inc.inc_ie.ie_fport) <
92 ntohs(tcp2->xtcp.xt_inp.inp_inc.inc_ie.ie_fport))
94 if (ntohs(tcp1->xtcp.xt_inp.inp_inc.inc_ie.ie_fport) >
95 ntohs(tcp2->xtcp.xt_inp.inp_inc.inc_ie.ie_fport))
99 if (ntohs(tcp1->xtcp.xt_inp.inp_inc.inc_ie.ie_lport) <
100 ntohs(tcp2->xtcp.xt_inp.inp_inc.inc_ie.ie_lport))
102 if (ntohs(tcp1->xtcp.xt_inp.inp_inc.inc_ie.ie_lport) >
103 ntohs(tcp2->xtcp.xt_inp.inp_inc.inc_ie.ie_lport))
105 if (ntohs(tcp1->xtcp.xt_inp.inp_inc.inc_ie.ie_fport) <
106 ntohs(tcp2->xtcp.xt_inp.inp_inc.inc_ie.ie_fport))
108 if (ntohs(tcp1->xtcp.xt_inp.inp_inc.inc_ie.ie_fport) >
109 ntohs(tcp2->xtcp.xt_inp.inp_inc.inc_ie.ie_fport))
113 * Sort IPV4 vs IPV6 addresses
115 if (tcp1->xtcp.xt_inp.inp_af < tcp2->xtcp.xt_inp.inp_af)
117 if (tcp1->xtcp.xt_inp.inp_af > tcp2->xtcp.xt_inp.inp_af)
121 * Local and foreign addresses
123 if (INP_ISIPV4(&tcp1->xtcp.xt_inp)) {
124 if (ntohl(tcp1->xtcp.xt_inp.inp_inc.inc_ie.ie_laddr.s_addr) <
125 ntohl(tcp2->xtcp.xt_inp.inp_inc.inc_ie.ie_laddr.s_addr))
127 if (ntohl(tcp1->xtcp.xt_inp.inp_inc.inc_ie.ie_laddr.s_addr) >
128 ntohl(tcp2->xtcp.xt_inp.inp_inc.inc_ie.ie_laddr.s_addr))
130 if (ntohl(tcp1->xtcp.xt_inp.inp_inc.inc_ie.ie_faddr.s_addr) <
131 ntohl(tcp2->xtcp.xt_inp.inp_inc.inc_ie.ie_faddr.s_addr))
133 if (ntohl(tcp1->xtcp.xt_inp.inp_inc.inc_ie.ie_faddr.s_addr) >
134 ntohl(tcp2->xtcp.xt_inp.inp_inc.inc_ie.ie_faddr.s_addr))
136 } else if (INP_ISIPV6(&tcp1->xtcp.xt_inp)) {
137 r = bcmp(&tcp1->xtcp.xt_inp.inp_inc.inc_ie.ie6_faddr,
138 &tcp2->xtcp.xt_inp.inp_inc.inc_ie.ie6_faddr,
139 sizeof(tcp1->xtcp.xt_inp.inp_inc.inc_ie.ie6_faddr));
143 r = bcmp(&tcp1->xtcp.xt_inp.inp_inc.inc_ie.ie6_faddr,
144 &tcp2->xtcp.xt_inp.inp_inc.inc_ie.ie6_faddr,
145 sizeof(tcp1->xtcp.xt_inp.inp_inc.inc_ie.ie6_faddr));
153 RB_HEAD(mytcpcb_tree, mytcpcb);
154 RB_PROTOTYPE(mytcpcb_tree, mytcpcb, rb_node, mytcpcb_cmp);
155 RB_GENERATE(mytcpcb_tree, mytcpcb, rb_node, mytcpcb_cmp);
157 static struct mytcpcb_tree mytcp_tree;
158 static struct timeval tv_curr;
159 static struct timeval tv_last;
160 static struct tcp_stats tcp_curr;
161 static struct tcp_stats tcp_last;
162 static int tcp_pcb_seq;
164 static const char *numtok(double value);
165 static void netbwline(int row, struct mytcpcb *elm, double delta_time);
166 const char * netaddrstr(u_char vflags, union in_dependaddr *depaddr,
168 static void updatepcb(struct xtcpcb *xtcp);
170 #define DELTARATE(field) \
171 ((double)(tcp_curr.field - tcp_last.field) / delta_time)
173 #define DELTAELM(field) \
174 ((double)(tcp_seq_diff_t)(elm->xtcp.field - \
175 elm->last_xtcp.field) / \
178 #define DELTAELMSCALE(field, scale) \
179 ((double)((tcp_seq_diff_t)(elm->xtcp.field - \
180 elm->last_xtcp.field) << scale) / \
186 RB_INIT(&mytcp_tree);
187 return (subwin(stdscr, LINES-0-1, 0, 0, 0));
191 closenetbw(WINDOW *w)
193 struct mytcpcb *mytcp;
195 while ((mytcp = RB_ROOT(&mytcp_tree)) != NULL) {
196 RB_REMOVE(mytcpcb_tree, &mytcp_tree, mytcp);
216 struct tcp_stats tcp_array[SMP_MAXCPU];
217 struct xtcpcb *tcp_pcbs;
228 if (sysctlbyname("net.inet.tcp.pcblist", NULL, &len, NULL, 0) < 0)
230 len += 128 * sizeof(tcp_pcbs[0]);
231 tcp_pcbs = malloc(len);
232 if (sysctlbyname("net.inet.tcp.pcblist", tcp_pcbs, &len, NULL, 0) < 0) {
236 npcbs = len / sizeof(tcp_pcbs[0]);
239 for (i = 0; i < npcbs; ++i) {
240 if (tcp_pcbs[i].xt_len != sizeof(tcp_pcbs[0]))
242 updatepcb(&tcp_pcbs[i]);
249 len = sizeof(tcp_array);
250 if (sysctlbyname("net.inet.tcp.stats", tcp_array, &len, NULL, 0) < 0)
252 ncpus = len / sizeof(tcp_array[0]);
255 bzero(&tcp_curr, sizeof(tcp_curr));
256 gettimeofday(&tv_curr, NULL);
258 for (i = 0; i < ncpus; ++i) {
259 for (j = 0; j < sizeof(tcp_curr) / sizeof(u_long); ++j) {
260 ((u_long *)&tcp_curr)[j] +=
261 ((u_long *)&tcp_array[i])[j];
272 mvwaddstr(wnd, 0, LADDR, "Local Address");
273 mvwaddstr(wnd, 0, FADDR, "Foreign Address");
274 mvwaddstr(wnd, 0, PROTO, "Proto");
275 mvwaddstr(wnd, 0, RCVCC, "Recv-Q");
276 mvwaddstr(wnd, 0, SNDCC, "Send-Q");
277 mvwaddstr(wnd, 0, STATE, "(state)");
286 struct mytcpcb *delm;
289 delta_time = (double)(tv_curr.tv_sec - tv_last.tv_sec) - 1.0 +
290 (tv_curr.tv_usec + 1000000 - tv_last.tv_usec) / 1e6;
291 if (delta_time < 0.1)
295 "tcp accepts %s connects %s "
296 " rcv %s snd %s rexmit %s",
297 numtok(DELTARATE(tcps_accepts)),
298 numtok(DELTARATE(tcps_connects) - DELTARATE(tcps_accepts)),
299 numtok(DELTARATE(tcps_rcvbyte)),
300 numtok(DELTARATE(tcps_sndbyte)),
301 numtok(DELTARATE(tcps_sndrexmitbyte)));
305 RB_FOREACH(elm, mytcpcb_tree, &mytcp_tree) {
307 RB_REMOVE(mytcpcb_tree, &mytcp_tree, delm);
311 if (elm->seq == tcp_pcb_seq &&
312 (elm->xtcp.xt_socket.so_rcv.sb_cc ||
313 elm->xtcp.xt_socket.so_snd.sb_cc ||
314 DELTAELM(xt_tp.snd_max) ||
315 DELTAELM(xt_tp.rcv_nxt)
318 netbwline(row, elm, delta_time);
320 } else if (elm->seq != tcp_pcb_seq) {
325 RB_REMOVE(mytcpcb_tree, &mytcp_tree, delm);
331 mvwprintw(wnd, LINES-2, 0,
333 "R=rxpend T=txpend N=nodelay T=tstmp "
334 "S=sack X=winscale F=fastrec");
339 netbwline(int row, struct mytcpcb *elm, double delta_time)
341 mvwprintw(wnd, row, 0,
347 elm->xtcp.xt_inp.inp_af,
348 &elm->xtcp.xt_inp.inp_inc.inc_ie.
350 ntohs(elm->xtcp.xt_inp.inp_inc.inc_ie.ie_lport)),
352 elm->xtcp.xt_inp.inp_af,
353 &elm->xtcp.xt_inp.inp_inc.inc_ie.
355 ntohs(elm->xtcp.xt_inp.inp_inc.inc_ie.ie_fport)),
357 numtok(elm->xtcp.xt_socket.so_rcv.sb_cc),
358 numtok(elm->xtcp.xt_socket.so_snd.sb_cc),
360 numtok(DELTAELM(xt_tp.rcv_nxt)),
361 numtok(DELTAELM(xt_tp.snd_max)),
362 (elm->xtcp.xt_socket.so_rcv.sb_cc > 15000 ?
364 (elm->xtcp.xt_socket.so_snd.sb_cc > 15000 ?
366 ((elm->xtcp.xt_tp.t_flags & TF_NODELAY) ?
368 ((elm->xtcp.xt_tp.t_flags & TF_RCVD_TSTMP) ?
370 ((elm->xtcp.xt_tp.t_flags &
373 ((elm->xtcp.xt_tp.t_flags & TF_RCVD_SCALE) ?
375 ((elm->xtcp.xt_tp.t_flags & TF_FASTRECOVERY) ?
383 cmdnetbw(const char *cmd __unused, char *args __unused)
399 static char buf[MAXINDEXES][32];
401 static const char *suffixes[] = { " ", "K", "M", "G", "T", NULL };
405 while (value >= 1000.0 && suffixes[suffix+1]) {
409 nexti = (nexti + 1) % MAXINDEXES;
412 } else if (value < 1.0) {
414 } else if (value < 10.0) {
416 } else if (value < 100.0) {
421 snprintf(buf[nexti], sizeof(buf[nexti]),
422 fmt, value, suffixes[suffix]);
427 netaddrstr(u_char af, union in_dependaddr *depaddr, u_int16_t port)
429 static char buf[MAXINDEXES][64];
433 nexta = (nexta + 1) % MAXINDEXES;
436 snprintf(bufip, sizeof(bufip),
438 (ntohl(depaddr->id46_addr.ia46_addr4.s_addr) >> 24) &
440 (ntohl(depaddr->id46_addr.ia46_addr4.s_addr) >> 16) &
442 (ntohl(depaddr->id46_addr.ia46_addr4.s_addr) >> 8) &
444 (ntohl(depaddr->id46_addr.ia46_addr4.s_addr) >> 0) &
446 snprintf(buf[nexta], sizeof(buf[nexta]),
447 "%15s:%-5d", bufip, port);
448 } else if (af == AF_INET6) {
449 snprintf(bufip, sizeof(bufip),
450 "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x",
451 ntohs(depaddr->id6_addr.s6_addr16[0]),
452 ntohs(depaddr->id6_addr.s6_addr16[1]),
453 ntohs(depaddr->id6_addr.s6_addr16[2]),
454 ntohs(depaddr->id6_addr.s6_addr16[3]),
455 ntohs(depaddr->id6_addr.s6_addr16[4]),
456 ntohs(depaddr->id6_addr.s6_addr16[5]),
457 ntohs(depaddr->id6_addr.s6_addr16[6]),
458 ntohs(depaddr->id6_addr.s6_addr16[7]));
459 snprintf(buf[nexta], sizeof(buf[nexta]),
460 "%39s:%-5d", bufip, port);
462 snprintf(bufip, sizeof(bufip), "<unknown>");
463 snprintf(buf[nexta], sizeof(buf[nexta]),
464 "%15s:%-5d", bufip, port);
471 updatepcb(struct xtcpcb *xtcp)
473 struct mytcpcb dummy;
477 if ((elm = RB_FIND(mytcpcb_tree, &mytcp_tree, &dummy)) == NULL) {
478 elm = malloc(sizeof(*elm));
479 bzero(elm, sizeof(*elm));
481 elm->last_xtcp = *xtcp;
482 RB_INSERT(mytcpcb_tree, &mytcp_tree, elm);
484 elm->last_xtcp = elm->xtcp;
487 elm->seq = tcp_pcb_seq;