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-rw-r--r--flowtop.c391
1 files changed, 191 insertions, 200 deletions
diff --git a/flowtop.c b/flowtop.c
index 4c15c06..119e2f9 100644
--- a/flowtop.c
+++ b/flowtop.c
@@ -62,6 +62,7 @@ struct flow_entry {
uint64_t pkts_dst, bytes_dst;
uint64_t timestamp_start, timestamp_stop;
char country_src[128], country_dst[128];
+ char country_code_src[4], country_code_dst[4];
char city_src[128], city_dst[128];
char rev_dns_src[256], rev_dns_dst[256];
char procname[256];
@@ -166,11 +167,6 @@ static const char *copyright = "Please report bugs to <netsniff-ng@googlegroups.
"This is free software: you are free to change and redistribute it.\n"
"There is NO WARRANTY, to the extent permitted by law.";
-static const char *const l3proto2str[AF_MAX] = {
- [AF_INET] = "ipv4",
- [AF_INET6] = "ipv6",
-};
-
static const char *const l4proto2str[IPPROTO_MAX] = {
[IPPROTO_TCP] = "tcp",
[IPPROTO_UDP] = "udp",
@@ -194,40 +190,40 @@ static const char *const l4proto2str[IPPROTO_MAX] = {
};
static const char *const tcp_state2str[TCP_CONNTRACK_MAX] = {
- [TCP_CONNTRACK_NONE] = "NOSTATE",
- [TCP_CONNTRACK_SYN_SENT] = "SYN_SENT",
- [TCP_CONNTRACK_SYN_RECV] = "SYN_RECV",
+ [TCP_CONNTRACK_NONE] = "NONE",
+ [TCP_CONNTRACK_SYN_SENT] = "SYN-SENT",
+ [TCP_CONNTRACK_SYN_RECV] = "SYN-RECV",
[TCP_CONNTRACK_ESTABLISHED] = "ESTABLISHED",
- [TCP_CONNTRACK_FIN_WAIT] = "FIN_WAIT",
- [TCP_CONNTRACK_CLOSE_WAIT] = "CLOSE_WAIT",
- [TCP_CONNTRACK_LAST_ACK] = "LAST_ACK",
- [TCP_CONNTRACK_TIME_WAIT] = "TIME_WAIT",
+ [TCP_CONNTRACK_FIN_WAIT] = "FIN-WAIT",
+ [TCP_CONNTRACK_CLOSE_WAIT] = "CLOSE-WAIT",
+ [TCP_CONNTRACK_LAST_ACK] = "LAST-ACK",
+ [TCP_CONNTRACK_TIME_WAIT] = "TIME-WAIT",
[TCP_CONNTRACK_CLOSE] = "CLOSE",
- [TCP_CONNTRACK_SYN_SENT2] = "SYN_SENT2",
+ [TCP_CONNTRACK_SYN_SENT2] = "SYN-SENT2",
};
static const char *const dccp_state2str[DCCP_CONNTRACK_MAX] = {
- [DCCP_CONNTRACK_NONE] = "NOSTATE",
+ [DCCP_CONNTRACK_NONE] = "NONE",
[DCCP_CONNTRACK_REQUEST] = "REQUEST",
[DCCP_CONNTRACK_RESPOND] = "RESPOND",
[DCCP_CONNTRACK_PARTOPEN] = "PARTOPEN",
[DCCP_CONNTRACK_OPEN] = "OPEN",
- [DCCP_CONNTRACK_CLOSEREQ] = "CLOSEREQ",
+ [DCCP_CONNTRACK_CLOSEREQ] = "CLOSE-REQ",
[DCCP_CONNTRACK_CLOSING] = "CLOSING",
- [DCCP_CONNTRACK_TIMEWAIT] = "TIMEWAIT",
+ [DCCP_CONNTRACK_TIMEWAIT] = "TIME-WAIT",
[DCCP_CONNTRACK_IGNORE] = "IGNORE",
[DCCP_CONNTRACK_INVALID] = "INVALID",
};
static const char *const sctp_state2str[SCTP_CONNTRACK_MAX] = {
- [SCTP_CONNTRACK_NONE] = "NOSTATE",
+ [SCTP_CONNTRACK_NONE] = "NONE",
[SCTP_CONNTRACK_CLOSED] = "CLOSED",
- [SCTP_CONNTRACK_COOKIE_WAIT] = "COOKIE_WAIT",
- [SCTP_CONNTRACK_COOKIE_ECHOED] = "COOKIE_ECHOED",
+ [SCTP_CONNTRACK_COOKIE_WAIT] = "COOKIE-WAIT",
+ [SCTP_CONNTRACK_COOKIE_ECHOED] = "COOKIE-ECHO",
[SCTP_CONNTRACK_ESTABLISHED] = "ESTABLISHED",
- [SCTP_CONNTRACK_SHUTDOWN_SENT] = "SHUTDOWN_SENT",
- [SCTP_CONNTRACK_SHUTDOWN_RECD] = "SHUTDOWN_RECD",
- [SCTP_CONNTRACK_SHUTDOWN_ACK_SENT] = "SHUTDOWN_ACK_SENT",
+ [SCTP_CONNTRACK_SHUTDOWN_SENT] = "SHUTD-SENT",
+ [SCTP_CONNTRACK_SHUTDOWN_RECD] = "SHUTD-RCVD",
+ [SCTP_CONNTRACK_SHUTDOWN_ACK_SENT] = "SHUTD-ACK",
};
static const struct nfct_filter_ipv4 filter_ipv4 = {
@@ -684,6 +680,7 @@ flow_entry_geo_country_lookup_generic(struct flow_entry *n,
struct sockaddr_in sa4;
struct sockaddr_in6 sa6;
const char *country = NULL;
+ const char *country_code = NULL;
switch (n->l3_proto) {
default:
@@ -692,11 +689,13 @@ flow_entry_geo_country_lookup_generic(struct flow_entry *n,
case AF_INET:
flow_entry_get_sain4_obj(n, dir, &sa4);
country = geoip4_country_name(&sa4);
+ country_code = geoip4_country_code3_name(&sa4);
break;
case AF_INET6:
flow_entry_get_sain6_obj(n, dir, &sa6);
country = geoip6_country_name(&sa6);
+ country_code = geoip6_country_code3_name(&sa6);
break;
}
@@ -707,6 +706,14 @@ flow_entry_geo_country_lookup_generic(struct flow_entry *n,
sizeof(n->country_src));
else
SELFLD(dir, country_src, country_dst)[0] = '\0';
+
+ build_bug_on(sizeof(n->country_code_src) != sizeof(n->country_code_dst));
+
+ if (country_code)
+ strlcpy(SELFLD(dir, country_code_src, country_code_dst),
+ country_code, sizeof(n->country_code_src));
+ else
+ SELFLD(dir, country_code_src, country_code_dst)[0] = '\0';
}
static void flow_entry_get_extended_geo(struct flow_entry *n,
@@ -792,36 +799,13 @@ static void flow_entry_get_extended(struct flow_entry *n)
walk_processes(n);
}
-static uint16_t presenter_get_port(uint16_t src, uint16_t dst, bool is_tcp)
+static char *bandw2str(double bytes, char *buf, size_t len)
{
- if (src < dst && src < 1024) {
- return src;
- } else if (dst < src && dst < 1024) {
- return dst;
- } else {
- const char *tmp1, *tmp2;
- if (is_tcp) {
- tmp1 = lookup_port_tcp(src);
- tmp2 = lookup_port_tcp(dst);
- } else {
- tmp1 = lookup_port_udp(src);
- tmp2 = lookup_port_udp(dst);
- }
- if (tmp1 && !tmp2) {
- return src;
- } else if (!tmp1 && tmp2) {
- return dst;
- } else {
- if (src < dst)
- return src;
- else
- return dst;
- }
+ if (bytes <= 0) {
+ buf[0] = '\0';
+ return buf;
}
-}
-static char *bandw2str(double bytes, char *buf, size_t len)
-{
if (bytes > 1000000000.)
snprintf(buf, len, "%.1fGB", bytes / 1000000000.);
else if (bytes > 1000000.)
@@ -829,7 +813,7 @@ static char *bandw2str(double bytes, char *buf, size_t len)
else if (bytes > 1000.)
snprintf(buf, len, "%.1fkB", bytes / 1000.);
else
- snprintf(buf, len, "%g bytes", bytes);
+ snprintf(buf, len, "%.0f", bytes);
return buf;
}
@@ -837,10 +821,15 @@ static char *bandw2str(double bytes, char *buf, size_t len)
static char *rate2str(double rate, char *buf, size_t len)
{
const char * const unit_fmt[2][4] = {
- { "%.1fGbit/s", "%.1fMbit/s", "%.1fkbit/s", "%gbit/s" },
- { "%.1fGB/s", "%.1fMB/s", "%.1fkB/s", "%gB/s" }
+ { "%.1fGbit/s", "%.1fMbit/s", "%.1fkbit/s", "%.0fbit/s" },
+ { "%.1fGB/s", "%.1fMB/s", "%.1fkB/s", "%.0fB/s" }
};
+ if (rate <= 0) {
+ buf[0] = '\0';
+ return buf;
+ }
+
if (rate_type == RATE_BITS)
rate *= 8;
@@ -856,176 +845,160 @@ static char *rate2str(double rate, char *buf, size_t len)
return buf;
}
-static void presenter_print_counters(uint64_t bytes, uint64_t pkts,
- double rate_bytes, double rate_pkts,
- int color)
+static char *time2str(uint64_t tstamp, char *str, size_t len)
{
- char bytes_str[64];
-
- printw(" -> (");
- attron(COLOR_PAIR(color));
- printw("%"PRIu64" pkts", pkts);
- if (rate_pkts) {
- attron(COLOR_PAIR(3));
- printw("(%.1fpps)", rate_pkts);
- attron(COLOR_PAIR(color));
+ time_t now;
+ int v, s;
+
+ time(&now);
+
+ s = now - (tstamp ? (tstamp / NSEC_PER_SEC) : now);
+ if (s <= 0) {
+ str[0] = '\0';
+ return str;
}
- printw(", %s", bandw2str(bytes, bytes_str, sizeof(bytes_str) - 1));
- if (rate_bytes) {
- attron(COLOR_PAIR(3));
- printw("(%s)", rate2str(rate_bytes, bytes_str,
- sizeof(bytes_str) - 1));
- attron(COLOR_PAIR(color));
+ v = s / (3600 * 24);
+ if (v > 0) {
+ slprintf(str, len, "%dd", v);
+ return str;
}
- attroff(COLOR_PAIR(color));
- printw(")");
+
+ v = s / 3600;
+ if (v > 0) {
+ slprintf(str, len, "%dh", v);
+ return str;
+ }
+
+ v = s / 60;
+ if (v > 0) {
+ slprintf(str, len, "%dm", v);
+ return str;
+ }
+
+ slprintf(str, len, "%ds", s);
+ return str;
}
-static void presenter_print_flow_entry_time(const struct flow_entry *n)
+static void print_flow_peer_info(const struct flow_entry *n, int y, int x,
+ enum flow_direction dir)
{
- int h, m, s;
- time_t now;
+ int counters_color = COLOR_PAIR(3);
+ int country_color = COLOR_PAIR(4);
+ int port_color = A_BOLD;
+ const char *str = NULL;
+ uint16_t port = 0;
+ char tmp[128];
- time(&now);
+ if (show_src && dir == FLOW_DIR_SRC) {
+ counters_color = COLOR_PAIR(1);
+ country_color = COLOR_PAIR(1);
+ port_color |= COLOR_PAIR(1);
+ } else if (show_src && FLOW_DIR_DST) {
+ counters_color = COLOR_PAIR(2);
+ country_color = COLOR_PAIR(2);
+ port_color |= COLOR_PAIR(2);
+ }
- s = now - (n->timestamp_start / NSEC_PER_SEC);
- if (s <= 0)
- return;
+ mvprintw(y, x, "");
+
+ /* Reverse DNS/IP */
+ attron(COLOR_PAIR(dir == FLOW_DIR_SRC ? 1 : 2));
+ printw(" %-*.*s", 50, 50, SELFLD(dir, rev_dns_src, rev_dns_dst));
+ attroff(COLOR_PAIR(dir == FLOW_DIR_SRC ? 1 : 2));
- h = s / 3600;
- s -= h * 3600;
- m = s / 60;
- s -= m * 60;
-
- printw(" [ time");
- if (h > 0)
- printw(" %dh", h);
- if (m > 0)
- printw(" %dm", m);
- if (s > 0)
- printw(" %ds", s);
- printw(" ]");
+ /* Application port */
+ port = SELFLD(dir, port_src, port_dst);
+ str = NULL;
+
+ switch (n->l4_proto) {
+ case IPPROTO_TCP:
+ str = lookup_port_tcp(port);
+ break;
+ case IPPROTO_UDP:
+ case IPPROTO_UDPLITE:
+ str = lookup_port_udp(port);
+ break;
+ }
+
+ if (!str && port)
+ slprintf(tmp, sizeof(tmp), "%d", port);
+ else
+ slprintf(tmp, sizeof(tmp), "%s", str ? str : "");
+
+ attron(port_color);
+ printw(" %-*.*s", 8, 8, tmp);
+ attroff(port_color);
+
+ /* Country code */
+ attron(country_color);
+ printw(" %-*.*s", 3, 3, SELFLD(dir, country_code_src, country_code_dst));
+ attroff(country_color);
+
+ /* Bytes */
+ attron(counters_color);
+ printw(" %*.*s", 10, 10,
+ bandw2str(SELFLD(dir, bytes_src, bytes_dst),
+ tmp, sizeof(tmp) - 1));
+ attroff(counters_color);
+
+ /* Rate */
+ attron(counters_color);
+ printw(" %*.*s", 10, 10,
+ rate2str(SELFLD(dir, rate_bytes_src, rate_bytes_dst),
+ tmp, sizeof(tmp) - 1));
+ attroff(counters_color);
}
-static void draw_flow_entry(WINDOW *screen, const struct flow_entry *n,
- unsigned int *line)
+static void draw_flow_entry(WINDOW *scr, const struct flow_entry *n, int line)
{
+ const char *str = NULL;
char tmp[128];
- const char *pname = NULL;
- uint16_t port;
- mvwprintw(screen, *line, 2, "");
+ mvwprintw(scr, line, 0, "");
- /* PID, application name */
- if (n->procnum > 0) {
- slprintf(tmp, sizeof(tmp), "%s(%d)", n->procname, n->procnum);
+ /* Application */
+ attron(COLOR_PAIR(3));
+ printw("%-*.*s", 10, 10, n->procname);
+ attroff(COLOR_PAIR(3));
- printw("[");
- attron(COLOR_PAIR(3));
- printw("%s", tmp);
- attroff(COLOR_PAIR(3));
- printw("]:");
- }
+ /* PID */
+ slprintf(tmp, sizeof(tmp), "%.d", n->procnum);
+ attron(A_BOLD);
+ printw("%-*.*s", 7, 7, tmp);
+ attroff(A_BOLD);
+
+ /* L4 protocol */
+ printw(" %-*.*s", 6, 6, l4proto2str[n->l4_proto]);
- /* L3 protocol, L4 protocol, states */
- printw("%s:%s", l3proto2str[n->l3_proto], l4proto2str[n->l4_proto]);
- printw("[");
+ /* L4 protocol state */
attron(COLOR_PAIR(3));
switch (n->l4_proto) {
case IPPROTO_TCP:
- printw("%s", tcp_state2str[n->tcp_state]);
+ str = tcp_state2str[n->tcp_state];
break;
case IPPROTO_SCTP:
- printw("%s", sctp_state2str[n->sctp_state]);
+ str = sctp_state2str[n->sctp_state];
break;
case IPPROTO_DCCP:
- printw("%s", dccp_state2str[n->dccp_state]);
+ str = dccp_state2str[n->dccp_state];
break;
case IPPROTO_UDP:
case IPPROTO_UDPLITE:
case IPPROTO_ICMP:
case IPPROTO_ICMPV6:
- printw("NOSTATE");
+ str = "";
break;
}
+ printw(" %-*.*s", 11, 11, str);
attroff(COLOR_PAIR(3));
- printw("]");
-
- /* Guess application port */
- switch (n->l4_proto) {
- case IPPROTO_TCP:
- port = presenter_get_port(n->port_src, n->port_dst, true);
- pname = lookup_port_tcp(port);
- break;
- case IPPROTO_UDP:
- case IPPROTO_UDPLITE:
- port = presenter_get_port(n->port_src, n->port_dst, false);
- pname = lookup_port_udp(port);
- break;
- }
- if (pname) {
- attron(A_BOLD);
- printw(":%s", pname);
- attroff(A_BOLD);
- }
-
- if (n->timestamp_start > 0)
- presenter_print_flow_entry_time(n);
-
- /* Show source information: reverse DNS, port, country, city, counters */
- if (show_src) {
- attron(COLOR_PAIR(1));
- mvwprintw(screen, ++(*line), 8, "src: %s", n->rev_dns_src);
- attroff(COLOR_PAIR(1));
-
- printw(":%"PRIu16, n->port_src);
-
- if (n->country_src[0]) {
- printw(" (");
-
- attron(COLOR_PAIR(4));
- printw("%s", n->country_src);
- attroff(COLOR_PAIR(4));
- if (n->city_src[0])
- printw(", %s", n->city_src);
+ /* Time */
+ printw(" %*.*s", 4, 4, time2str(n->timestamp_start, tmp, sizeof(tmp)));
- printw(")");
- }
-
- if (n->pkts_src > 0 && n->bytes_src > 0)
- presenter_print_counters(n->bytes_src, n->pkts_src,
- n->rate_bytes_src,
- n->rate_pkts_src, 1);
-
- printw(" => ");
- }
-
- /* Show dest information: reverse DNS, port, country, city, counters */
- attron(COLOR_PAIR(2));
- mvwprintw(screen, ++(*line), 8, "dst: %s", n->rev_dns_dst);
- attroff(COLOR_PAIR(2));
-
- printw(":%"PRIu16, n->port_dst);
-
- if (n->country_dst[0]) {
- printw(" (");
-
- attron(COLOR_PAIR(4));
- printw("%s", n->country_dst);
- attroff(COLOR_PAIR(4));
-
- if (n->city_dst[0])
- printw(", %s", n->city_dst);
-
- printw(")");
- }
-
- if (n->pkts_dst > 0 && n->bytes_dst > 0)
- presenter_print_counters(n->bytes_dst, n->pkts_dst,
- n->rate_bytes_dst,
- n->rate_pkts_dst, 2);
+ print_flow_peer_info(n, line, 41, show_src ? FLOW_DIR_SRC : FLOW_DIR_DST);
+ if (show_src)
+ print_flow_peer_info(n, line + 1, 41, FLOW_DIR_DST);
}
static inline bool presenter_flow_wrong_state(struct flow_entry *n)
@@ -1088,14 +1061,35 @@ static inline bool presenter_flow_wrong_state(struct flow_entry *n)
return true;
}
+static void draw_flows_header(WINDOW *scr, int line)
+{
+ attron(COLOR_PAIR(5));
+
+ mvwprintw(scr, line, 0, "%-*.*s", cols, cols, "");
+ mvwprintw(scr, line, 0, "");
+
+ wprintw(scr, "%-*.*s", 10, 10, "PROCESS");
+ wprintw(scr, "%-*.*s", 7, 7, "PID");
+ wprintw(scr, " %-*.*s", 6, 6, "PROTO");
+ wprintw(scr, " %-*.*s", 11, 11, "STATE");
+ wprintw(scr, " %*.*s", 4, 4, "TIME");
+ wprintw(scr, " %-*.*s", 50, 50, "ADDRESS");
+ wprintw(scr, " %-*.*s", 8, 8, "PORT");
+ wprintw(scr, " %-*.*s", 3, 3, "GEO");
+ wprintw(scr, " %*.*s", 10, 10, "BYTES");
+ wprintw(scr, " %*.*s", 10, 10, "RATE");
+
+ attroff(COLOR_PAIR(5));
+}
+
static void draw_flows(WINDOW *screen, struct flow_list *fl,
int skip_lines)
{
- int skip_left = skip_lines;
+ int row_width = show_src ? 2 : 1;
unsigned int flows = 0;
- unsigned int line = 3;
+ unsigned int line = 4;
+ int skip = skip_lines;
struct flow_entry *n;
- int maxy = rows - 6;
wclear(screen);
clear();
@@ -1107,28 +1101,24 @@ static void draw_flows(WINDOW *screen, struct flow_list *fl,
mvwprintw(screen, line, 2, "(No sessions! "
"Is netfilter running?)");
+ draw_flows_header(screen, line - 1);
+
for (; n; n = rcu_dereference(n->next)) {
if (!n->is_visible)
continue;
-
if (presenter_flow_wrong_state(n))
continue;
/* count only flows which might be showed */
flows++;
- if (maxy <= 0)
+ if (line + row_width >= rows)
continue;
-
- if (skip_left > 0) {
- skip_left--;
+ if (--skip >= 0)
continue;
- }
-
- draw_flow_entry(screen, n, &line);
- line++;
- maxy -= (2 + (show_src ? 1 : 0));
+ draw_flow_entry(screen, n, line);
+ line += row_width;
}
mvwprintw(screen, 1, 2, "Kernel netfilter flows(%u) for ", flows);
@@ -1272,6 +1262,7 @@ static void presenter(void)
init_pair(2, COLOR_BLUE, COLOR_BLACK);
init_pair(3, COLOR_YELLOW, COLOR_BLACK);
init_pair(4, COLOR_GREEN, COLOR_BLACK);
+ init_pair(5, COLOR_BLACK, COLOR_GREEN);
rcu_register_thread();
while (!sigint) {
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2024-11-05 16:51:16 +0000