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tpws: fix-seg wait before send. tune max delay.
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commit
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@ -812,7 +812,7 @@ tpws - это transparent proxy.
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--skip-nodelay ; не устанавливать в исходящих соединения TCP_NODELAY. несовместимо со split.
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--skip-nodelay ; не устанавливать в исходящих соединения TCP_NODELAY. несовместимо со split.
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--local-tcp-user-timeout=<seconds> ; таймаут соединений client-proxy (по умолчанию : 10 сек, 0 = оставить системное значение)
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--local-tcp-user-timeout=<seconds> ; таймаут соединений client-proxy (по умолчанию : 10 сек, 0 = оставить системное значение)
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--remote-tcp-user-timeout=<seconds> ; таймаут соединений proxy-target (по умолчанию : 20 сек, 0 = оставить системное значение)
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--remote-tcp-user-timeout=<seconds> ; таймаут соединений proxy-target (по умолчанию : 20 сек, 0 = оставить системное значение)
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--fix-seg ; исправлять неудачи tcp сегментации ценой задержек для всех клиентов и замедления
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--fix-seg=<int> ; исправлять неудачи tcp сегментации ценой задержек для всех клиентов и замедления. ждать до N мс. по умолчанию 30 мс.
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--split-pos=N|-N|marker+N|marker-N ; список через запятую маркеров для tcp сегментации
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--split-pos=N|-N|marker+N|marker-N ; список через запятую маркеров для tcp сегментации
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--split-any-protocol ; применять сегментацию к любым пакетам. по умолчанию - только к известным протоколам (http, TLS)
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--split-any-protocol ; применять сегментацию к любым пакетам. по умолчанию - только к известным протоколам (http, TLS)
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@ -484,10 +484,11 @@ bool socket_has_notsent(int sfd)
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if (getsockopt(sfd, IPPROTO_TCP, TCP_INFO, (char *)&tcpi, &ts) < 0)
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if (getsockopt(sfd, IPPROTO_TCP, TCP_INFO, (char *)&tcpi, &ts) < 0)
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return false;
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return false;
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if (tcpi.tcpi_state != 1)
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if (tcpi.tcpi_state != 1) // TCP_ESTABLISHED
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return false;
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return false;
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size_t s = (char *)&tcpi.tcpi_notsent_bytes - (char *)&tcpi.tcpi_state;
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size_t s = (char *)&tcpi.tcpi_notsent_bytes - (char *)&tcpi.tcpi_state;
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if (ts < s)
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if (ts < s)
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// old structure version
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return false;
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return false;
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return !!tcpi.tcpi_notsent_bytes;
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return !!tcpi.tcpi_notsent_bytes;
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}
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}
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@ -18,6 +18,8 @@
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#define HOSTLIST_AUTO_FAIL_THRESHOLD_DEFAULT 3
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#define HOSTLIST_AUTO_FAIL_THRESHOLD_DEFAULT 3
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#define HOSTLIST_AUTO_FAIL_TIME_DEFAULT 60
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#define HOSTLIST_AUTO_FAIL_TIME_DEFAULT 60
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#define FIX_SEG_DEFAULT_MAX_WAIT 30
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enum bindll { unwanted=0, no, prefer, force };
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enum bindll { unwanted=0, no, prefer, force };
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#define MAX_BINDS 32
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#define MAX_BINDS 32
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@ -102,13 +104,13 @@ struct params_s
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char connect_bind6_ifname[IF_NAMESIZE];
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char connect_bind6_ifname[IF_NAMESIZE];
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uint8_t proxy_type;
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uint8_t proxy_type;
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unsigned int fix_seg;
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bool no_resolve;
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bool no_resolve;
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bool skip_nodelay;
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bool skip_nodelay;
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bool fix_seg;
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bool droproot;
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bool droproot;
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bool daemon;
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uid_t uid;
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uid_t uid;
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gid_t gid;
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gid_t gid;
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bool daemon;
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char pidfile[256];
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char pidfile[256];
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int maxconn,resolver_threads,maxfiles,max_orphan_time;
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int maxconn,resolver_threads,maxfiles,max_orphan_time;
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int local_rcvbuf,local_sndbuf,remote_rcvbuf,remote_sndbuf;
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int local_rcvbuf,local_sndbuf,remote_rcvbuf,remote_sndbuf;
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20
tpws/tpws.c
20
tpws/tpws.c
@ -171,7 +171,7 @@ static void exithelp(void)
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" --enable-pf\t\t\t\t; enable PF redirector support. required in FreeBSD when used with PF firewall.\n"
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" --enable-pf\t\t\t\t; enable PF redirector support. required in FreeBSD when used with PF firewall.\n"
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#endif
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#endif
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#if defined(__linux__)
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#if defined(__linux__)
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" --fix-seg\t\t\t\t; fix segmentation failures at the cost of possible slowdown\n"
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" --fix-seg=<int>\t\t\t; fix segmentation failures at the cost of possible slowdown. wait up to N msec (default %u)\n"
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#endif
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#endif
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" --debug=0|1|2|syslog|@<filename>\t; 1 and 2 means log to console and set debug level. for other targets use --debug-level.\n"
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" --debug=0|1|2|syslog|@<filename>\t; 1 and 2 means log to console and set debug level. for other targets use --debug-level.\n"
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" --debug-level=0|1|2\t\t\t; specify debug level\n"
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" --debug-level=0|1|2\t\t\t; specify debug level\n"
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@ -218,6 +218,9 @@ static void exithelp(void)
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" --tamper-cutoff=[n]<pos>\t\t; do not tamper anymore after specified outbound stream position. default is unlimited.\n",
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" --tamper-cutoff=[n]<pos>\t\t; do not tamper anymore after specified outbound stream position. default is unlimited.\n",
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#if defined(__linux__) || defined(__APPLE__)
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#if defined(__linux__) || defined(__APPLE__)
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DEFAULT_TCP_USER_TIMEOUT_LOCAL,DEFAULT_TCP_USER_TIMEOUT_REMOTE,
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DEFAULT_TCP_USER_TIMEOUT_LOCAL,DEFAULT_TCP_USER_TIMEOUT_REMOTE,
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#endif
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#ifdef __linux__
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FIX_SEG_DEFAULT_MAX_WAIT,
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#endif
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#endif
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HOSTLIST_AUTO_FAIL_THRESHOLD_DEFAULT, HOSTLIST_AUTO_FAIL_TIME_DEFAULT
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HOSTLIST_AUTO_FAIL_THRESHOLD_DEFAULT, HOSTLIST_AUTO_FAIL_TIME_DEFAULT
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);
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);
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@ -638,7 +641,7 @@ void parse_params(int argc, char *argv[])
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{ "local-tcp-user-timeout",required_argument,0,0 }, // optidx=62
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{ "local-tcp-user-timeout",required_argument,0,0 }, // optidx=62
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{ "remote-tcp-user-timeout",required_argument,0,0 }, // optidx=63
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{ "remote-tcp-user-timeout",required_argument,0,0 }, // optidx=63
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{ "mss",required_argument,0,0 }, // optidx=64
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{ "mss",required_argument,0,0 }, // optidx=64
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{ "fix-seg",no_argument,0,0 }, // optidx=65
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{ "fix-seg",optional_argument,0,0 }, // optidx=65
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#ifdef SPLICE_PRESENT
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#ifdef SPLICE_PRESENT
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{ "nosplice",no_argument,0,0 }, // optidx=66
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{ "nosplice",no_argument,0,0 }, // optidx=66
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#endif
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#endif
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@ -1233,7 +1236,18 @@ void parse_params(int argc, char *argv[])
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}
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}
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break;
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break;
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case 65: /* fix-seg */
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case 65: /* fix-seg */
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params.fix_seg = true;
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if (optarg)
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{
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i = atoi(optarg);
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if (i < 0 || i > 1000)
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{
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DLOG_ERR("fix_seg value must be within 0..1000\n");
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exit_clean(1);
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}
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params.fix_seg = i;
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}
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else
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params.fix_seg = FIX_SEG_DEFAULT_MAX_WAIT;
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break;
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break;
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#ifdef SPLICE_PRESENT
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#ifdef SPLICE_PRESENT
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case 66: /* nosplice */
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case 66: /* nosplice */
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@ -1231,6 +1231,22 @@ static bool handle_epoll(tproxy_conn_t *conn, struct tailhead *conn_list, uint32
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bApplyDisorder = !(i & 1) && i<multisplit_count && (split_flags & SPLIT_FLAG_DISORDER);
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bApplyDisorder = !(i & 1) && i<multisplit_count && (split_flags & SPLIT_FLAG_DISORDER);
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bApplyOOB = i==0 && (split_flags & SPLIT_FLAG_OOB);
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bApplyOOB = i==0 && (split_flags & SPLIT_FLAG_OOB);
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len = to-from;
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len = to-from;
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#ifdef __linux__
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if (params.fix_seg)
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{
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unsigned int wasted;
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bool bWaitOK = socket_wait_notsent(conn->partner->fd, params.fix_seg, &wasted);
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if (wasted)
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VPRINT("WARNING ! wasted %u ms to fix segmenation\n", wasted);
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if (!bWaitOK)
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DLOG_ERR("WARNING ! segmentation failed\n");
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}
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else
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{
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if (socket_has_notsent(conn->partner->fd))
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DLOG_ERR("WARNING ! segmentation failed\n");
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}
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#endif
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VPRINT("Sending multisplit part %d %zd-%zd (len %zd)%s%s : ", i+1, from, to, len, bApplyDisorder ? " with disorder" : "", bApplyOOB ? " with OOB" : "");
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VPRINT("Sending multisplit part %d %zd-%zd (len %zd)%s%s : ", i+1, from, to, len, bApplyDisorder ? " with disorder" : "", bApplyOOB ? " with OOB" : "");
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packet_debug(buf+from,len);
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packet_debug(buf+from,len);
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wr = send_oob(conn->partner->fd, buf+from, len, bApplyDisorder, bApplyOOB, conn->track.dp ? conn->track.dp->oob_byte : 0);
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wr = send_oob(conn->partner->fd, buf+from, len, bApplyDisorder, bApplyOOB, conn->track.dp ? conn->track.dp->oob_byte : 0);
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@ -1244,21 +1260,6 @@ static bool handle_epoll(tproxy_conn_t *conn, struct tailhead *conn_list, uint32
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if (wr>0) conn->partner->twr += wr;
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if (wr>0) conn->partner->twr += wr;
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break;
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break;
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}
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}
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#ifdef __linux__
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if (params.fix_seg)
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{
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unsigned int wasted;
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if (!socket_wait_notsent(conn->partner->fd, 20, &wasted))
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DLOG_ERR("WARNING ! segmentation failed\n");
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if (wasted)
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VPRINT("WARNING ! wasted %u ms to fix segmenation\n", wasted);
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}
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else
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{
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if (socket_has_notsent(conn->partner->fd))
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DLOG_ERR("WARNING ! segmentation failed\n");
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}
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#endif
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from = to;
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from = to;
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}
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}
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}
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}
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