diff options
Diffstat (limited to 'system')
| -rw-r--r-- | system/openssh/APKBUILD | 4 | ||||
| -rw-r--r-- | system/openssh/disable-forwarding-by-default.patch | 16 | ||||
| -rw-r--r-- | system/openssh/openssh-7.5p1-sandbox.patch | 23 | ||||
| -rw-r--r-- | system/openssh/openssh7.4-dynwindows.patch | 835 |
4 files changed, 19 insertions, 859 deletions
diff --git a/system/openssh/APKBUILD b/system/openssh/APKBUILD index 496d6d7a4..f4ea3ae3c 100644 --- a/system/openssh/APKBUILD +++ b/system/openssh/APKBUILD @@ -4,7 +4,7 @@ pkgname=openssh pkgver=7.7_p1 _myver=${pkgver%_*}${pkgver#*_} -pkgrel=1 +pkgrel=2 pkgdesc="Port of OpenBSD's free SSH release" url="http://www.openssh.org/portable.html" arch="all" @@ -26,6 +26,7 @@ subpackages="$pkgname-doc source="http://ftp.openbsd.org/pub/OpenBSD/OpenSSH/portable/$pkgname-$_myver.tar.gz bsd-compatible-realpath.patch + disable-forwarding-by-default.patch fix-utmpx.patch openssh7.4-peaktput.patch sftp-interactive.patch @@ -151,6 +152,7 @@ server() { sha512sums="597252cb48209a0cb98ca1928a67e8d63e4275252f25bc37269204c108f034baade6ba0634e32ae63422fddd280f73096a6b31ad2f2e7a848dde75ca30e14261 openssh-7.7p1.tar.gz f2b8daa537ea3f32754a4485492cc6eb3f40133ed46c0a5a29a89e4bcf8583d82d891d94bf2e5eb1c916fa68ec094abf4e6cd641e9737a6c05053808012b3a73 bsd-compatible-realpath.patch +8df35d72224cd255eb0685d2c707b24e5eb24f0fdd67ca6cc0f615bdbd3eeeea2d18674a6af0c6dab74c2d8247e2370d0b755a84c99f766a431bc50c40b557de disable-forwarding-by-default.patch 0c1e832cec420bc7b57558041d2288912a438db97050b87f6a57e94a2741a374cc5d141fe352968b0d1ba6accaff965794463fe9169d136678a8915a60d2f0b7 fix-utmpx.patch 398096a89aa104abeff31aa043ac406a6348e0fdd4d313b7888ee0b931d38fd71fc21bceee46145e88f03bc27e00890e068442faee2d33f86cfbc04d58ffa4b6 openssh7.4-peaktput.patch c1d09c65dbc347f0904edc30f91aa9a24b0baee50309536182455b544f1e3f85a8cecfa959e32be8b101d8282ef06dde3febbbc3f315489339dcf04155c859a9 sftp-interactive.patch diff --git a/system/openssh/disable-forwarding-by-default.patch b/system/openssh/disable-forwarding-by-default.patch new file mode 100644 index 000000000..9d27926d9 --- /dev/null +++ b/system/openssh/disable-forwarding-by-default.patch @@ -0,0 +1,16 @@ +--- openssh-7.7p1/sshd_config.old 2018-04-02 00:38:28.000000000 -0500 ++++ openssh-7.7p1/sshd_config 2018-07-29 03:08:16.340000000 -0500 +@@ -82,9 +82,10 @@ + #UsePAM no + + #AllowAgentForwarding yes +-#AllowTcpForwarding yes +-#GatewayPorts no +-#X11Forwarding no ++# Feel free to re-enable these if your use case requires them. ++AllowTcpForwarding no ++GatewayPorts no ++X11Forwarding no + #X11DisplayOffset 10 + #X11UseLocalhost yes + #PermitTTY yes diff --git a/system/openssh/openssh-7.5p1-sandbox.patch b/system/openssh/openssh-7.5p1-sandbox.patch deleted file mode 100644 index 7d09632c8..000000000 --- a/system/openssh/openssh-7.5p1-sandbox.patch +++ /dev/null @@ -1,23 +0,0 @@ -diff --git a/sandbox-seccomp-filter.c b/sandbox-seccomp-filter.c -index 3a1aedce72c2..a8d472a63ccb 100644 ---- a/sandbox-seccomp-filter.c -+++ b/sandbox-seccomp-filter.c -@@ -50,6 +50,9 @@ - #include <elf.h> - - #include <asm/unistd.h> -+#ifdef __s390__ -+#include <asm/zcrypt.h> -+#endif - - #include <errno.h> - #include <signal.h> -@@ -235,7 +235,7 @@ static const struct sock_filter preauth_insns[] = { - * x86-64 syscall under some circumstances, e.g. - * https://bugs.debian.org/849923 - */ -- SC_ALLOW(__NR_clock_gettime & ~__X32_SYSCALL_BIT); -+ SC_ALLOW(__NR_clock_gettime & ~__X32_SYSCALL_BIT), - #endif - - /* Default deny */ diff --git a/system/openssh/openssh7.4-dynwindows.patch b/system/openssh/openssh7.4-dynwindows.patch deleted file mode 100644 index 45c42159e..000000000 --- a/system/openssh/openssh7.4-dynwindows.patch +++ /dev/null @@ -1,835 +0,0 @@ ---- a/buffer.h -+++ b/buffer.h -@@ -16,6 +16,9 @@ - * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -+/* move the following to a more appropriate place and name */ -+#define BUFFER_MAX_LEN_HPN 0x4000000 /* 64MB */ -+ - /* Emulation wrappers for legacy OpenSSH buffer API atop sshbuf */ - - #ifndef BUFFER_H ---- a/channels.c -+++ b/channels.c -@@ -191,8 +191,14 @@ - static int connect_next(struct channel_connect *); - static void channel_connect_ctx_free(struct channel_connect *); - -+ -+static int hpn_disabled = 0; -+static int hpn_buffer_size = 2 * 1024 * 1024; -+ - /* -- channel core */ - -+ -+ - Channel * - channel_by_id(int id) - { -@@ -356,6 +362,7 @@ - c->local_window_max = window; - c->local_consumed = 0; - c->local_maxpacket = maxpack; -+ c->dynamic_window = 0; - c->remote_id = -1; - c->remote_name = xstrdup(remote_name); - c->remote_window = 0; -@@ -904,11 +911,35 @@ - FD_SET(c->sock, writeset); - } - -+int channel_tcpwinsz () { -+ u_int32_t tcpwinsz = 0; -+ socklen_t optsz = sizeof(tcpwinsz); -+ int ret = -1; -+ -+ /* if we aren't on a socket return 128KB*/ -+ if(!packet_connection_is_on_socket()) -+ return(128*1024); -+ ret = getsockopt(packet_get_connection_in(), -+ SOL_SOCKET, SO_RCVBUF, &tcpwinsz, &optsz); -+ /* return no more than 64MB */ -+ if ((ret == 0) && tcpwinsz > BUFFER_MAX_LEN_HPN) -+ tcpwinsz = BUFFER_MAX_LEN_HPN; -+ debug2("tcpwinsz: %d for connection: %d", tcpwinsz, -+ packet_get_connection_in()); -+ return(tcpwinsz); -+} -+ - static void - channel_pre_open(Channel *c, fd_set *readset, fd_set *writeset) - { - u_int limit = compat20 ? c->remote_window : packet_get_maxsize(); - -+ /* check buffer limits */ -+ if ((!c->tcpwinsz) || (c->dynamic_window > 0)) -+ c->tcpwinsz = channel_tcpwinsz(); -+ -+ limit = MIN(limit, 2 * c->tcpwinsz); -+ - if (c->istate == CHAN_INPUT_OPEN && - limit > 0 && - buffer_len(&c->input) < limit && -@@ -1926,14 +1957,21 @@ - c->local_maxpacket*3) || - c->local_window < c->local_window_max/2) && - c->local_consumed > 0) { -+ u_int addition = 0; -+ /* adjust max window size if we are in a dynamic environment */ -+ if (c->dynamic_window && (c->tcpwinsz > c->local_window_max)) { -+ /* grow the window somewhat aggressively to maintain pressure */ -+ addition = 1.5*(c->tcpwinsz - c->local_window_max); -+ c->local_window_max += addition; -+ } - packet_start(SSH2_MSG_CHANNEL_WINDOW_ADJUST); - packet_put_int(c->remote_id); -- packet_put_int(c->local_consumed); -+ packet_put_int(c->local_consumed + addition); - packet_send(); - debug2("channel %d: window %d sent adjust %d", - c->self, c->local_window, - c->local_consumed); -- c->local_window += c->local_consumed; -+ c->local_window += c->local_consumed + addition; - c->local_consumed = 0; - } - return 1; -@@ -3179,6 +3217,15 @@ - return addr; - } - -+ -+void -+channel_set_hpn(int external_hpn_disabled, int external_hpn_buffer_size) -+{ -+ hpn_disabled = external_hpn_disabled; -+ hpn_buffer_size = external_hpn_buffer_size; -+ debug("HPN Disabled: %d, HPN Buffer Size: %d", hpn_disabled, hpn_buffer_size); -+} -+ - static int - channel_setup_fwd_listener_tcpip(int type, struct Forward *fwd, - int *allocated_listen_port, struct ForwardOptions *fwd_opts) -@@ -3307,9 +3354,15 @@ - } - - /* Allocate a channel number for the socket. */ -+ /* explicitly test for hpn disabled option. if true use smaller window size */ -+ if (hpn_disabled) - c = channel_new("port listener", type, sock, sock, -1, - CHAN_TCP_WINDOW_DEFAULT, CHAN_TCP_PACKET_DEFAULT, - 0, "port listener", 1); -+ else -+ c = channel_new("port listener", type, sock, sock, -1, -+ hpn_buffer_size, CHAN_TCP_PACKET_DEFAULT, -+ 0, "port listener", 1); - c->path = xstrdup(host); - c->host_port = fwd->connect_port; - c->listening_addr = addr == NULL ? NULL : xstrdup(addr); -@@ -4313,10 +4366,17 @@ - *chanids = xcalloc(num_socks + 1, sizeof(**chanids)); - for (n = 0; n < num_socks; n++) { - sock = socks[n]; -+ /* Is this really necassary? */ -+ if (hpn_disabled) - nc = channel_new("x11 listener", - SSH_CHANNEL_X11_LISTENER, sock, sock, -1, - CHAN_X11_WINDOW_DEFAULT, CHAN_X11_PACKET_DEFAULT, - 0, "X11 inet listener", 1); -+ else -+ nc = channel_new("x11 listener", -+ SSH_CHANNEL_X11_LISTENER, sock, sock, -1, -+ hpn_buffer_size, CHAN_X11_PACKET_DEFAULT, -+ 0, "X11 inet listener", 1); - nc->single_connection = single_connection; - (*chanids)[n] = nc->self; - } ---- a/channels.h -+++ b/channels.h -@@ -135,8 +135,10 @@ - u_int local_window_max; - u_int local_consumed; - u_int local_maxpacket; -+ int dynamic_window; - int extended_usage; - int single_connection; -+ u_int tcpwinsz; - - char *ctype; /* type */ - -@@ -173,8 +175,10 @@ - /* default window/packet sizes for tcp/x11-fwd-channel */ - #define CHAN_SES_PACKET_DEFAULT (32*1024) - #define CHAN_SES_WINDOW_DEFAULT (64*CHAN_SES_PACKET_DEFAULT) -+ - #define CHAN_TCP_PACKET_DEFAULT (32*1024) - #define CHAN_TCP_WINDOW_DEFAULT (64*CHAN_TCP_PACKET_DEFAULT) -+ - #define CHAN_X11_PACKET_DEFAULT (16*1024) - #define CHAN_X11_WINDOW_DEFAULT (4*CHAN_X11_PACKET_DEFAULT) - -@@ -318,5 +322,8 @@ - void chan_rcvd_ieof(Channel *); - void chan_write_failed(Channel *); - void chan_obuf_empty(Channel *); -+ -+/* hpn handler */ -+void channel_set_hpn(int, int); - - #endif ---- a/clientloop.c -+++ b/clientloop.c -@@ -1990,9 +1990,15 @@ - sock = x11_connect_display(); - if (sock < 0) - return NULL; -+ /* again is this really necessary for X11? */ -+ if (options.hpn_disabled) - c = channel_new("x11", - SSH_CHANNEL_X11_OPEN, sock, sock, -1, - CHAN_TCP_WINDOW_DEFAULT, CHAN_X11_PACKET_DEFAULT, 0, "x11", 1); -+ else -+ c = channel_new("x11", -+ SSH_CHANNEL_X11_OPEN, sock, sock, -1, -+ options.hpn_buffer_size, CHAN_X11_PACKET_DEFAULT, 0, "x11", 1); - c->force_drain = 1; - return c; - } -@@ -2015,10 +2021,16 @@ - __func__, ssh_err(r)); - return NULL; - } -+ if (options.hpn_disabled) - c = channel_new("authentication agent connection", - SSH_CHANNEL_OPEN, sock, sock, -1, -- CHAN_X11_WINDOW_DEFAULT, CHAN_TCP_PACKET_DEFAULT, 0, -+ CHAN_X11_WINDOW_DEFAULT, CHAN_TCP_WINDOW_DEFAULT, 0, - "authentication agent connection", 1); -+ else -+ c = channel_new("authentication agent connection", -+ SSH_CHANNEL_OPEN, sock, sock, -1, -+ options.hpn_buffer_size, options.hpn_buffer_size, 0, -+ "authentication agent connection", 1); - c->force_drain = 1; - return c; - } -@@ -2045,9 +2057,17 @@ - return -1; - } - -+ if(options.hpn_disabled) - c = channel_new("tun", SSH_CHANNEL_OPENING, fd, fd, -1, -- CHAN_TCP_WINDOW_DEFAULT, CHAN_TCP_PACKET_DEFAULT, 0, "tun", 1); -+ CHAN_TCP_WINDOW_DEFAULT, CHAN_TCP_PACKET_DEFAULT, -+ 0, "tun", 1); -+ else -+ c = channel_new("tun", SSH_CHANNEL_OPENING, fd, fd, -1, -+ options.hpn_buffer_size, CHAN_TCP_PACKET_DEFAULT, -+ 0, "tun", 1); - c->datagram = 1; -+ -+ - - #if defined(SSH_TUN_FILTER) - if (options.tun_open == SSH_TUNMODE_POINTOPOINT) ---- a/compat.c -+++ b/compat.c -@@ -40,7 +40,7 @@ - - int compat13 = 0; - int compat20 = 0; --int datafellows = 0; -+unsigned int datafellows = 0; - - void - enable_compat20(void) -@@ -63,7 +63,7 @@ compat_datafellows(const char *version) - int i; - static struct { - char *pat; -- int bugs; -+ unsigned int bugs; - } check[] = { - { "OpenSSH-2.0*," - "OpenSSH-2.1*," -@@ -210,6 +210,12 @@ compat_datafellows(const char *version) - debug("match: %s pat %s compat 0x%08x", - version, check[i].pat, check[i].bugs); - datafellows = check[i].bugs; /* XXX for now */ -+ /* Check to see if the remote side is OpenSSH and not HPN */ -+ if (strstr(version,"OpenSSH") != NULL && -+ strstr(version,"hpn") == NULL) { -+ datafellows |= SSH_BUG_LARGEWINDOW; -+ debug("Remote is NON-HPN aware"); -+ } - return check[i].bugs; - } - } -diff --git a/compat.h b/compat.h -index 2be290a..453c85e 100644 ---- a/compat.h -+++ b/compat.h -@@ -62,6 +62,7 @@ - #define SSH_BUG_CURVE25519PAD 0x10000000 - #define SSH_BUG_HOSTKEYS 0x20000000 - #define SSH_BUG_DHGEX_LARGE 0x40000000 -+#define SSH_BUG_LARGEWINDOW 0x80000000 - - void enable_compat13(void); - void enable_compat20(void); -@@ -73,5 +74,5 @@ char *compat_kex_proposal(char *); - - extern int compat13; - extern int compat20; --extern int datafellows; -+extern unsigned int datafellows; - #endif ---- a/readconf.c -+++ b/readconf.c -@@ -154,6 +154,7 @@ - oCompressionLevel, oTCPKeepAlive, oNumberOfPasswordPrompts, - oUsePrivilegedPort, oLogLevel, oCiphers, oProtocol, oMacs, - oPubkeyAuthentication, -+ oTcpRcvBufPoll, oTcpRcvBuf, oHPNDisabled, oHPNBufferSize, - oKbdInteractiveAuthentication, oKbdInteractiveDevices, oHostKeyAlias, - oDynamicForward, oPreferredAuthentications, oHostbasedAuthentication, - oHostKeyAlgorithms, oBindAddress, oPKCS11Provider, -@@ -297,6 +298,11 @@ - { "ignoreunknown", oIgnoreUnknown }, - { "proxyjump", oProxyJump }, - -+ { "tcprcvbufpoll", oTcpRcvBufPoll }, -+ { "tcprcvbuf", oTcpRcvBuf }, -+ { "hpndisabled", oHPNDisabled }, -+ { "hpnbuffersize", oHPNBufferSize }, -+ - { NULL, oBadOption } - }; - -@@ -973,6 +979,18 @@ - intptr = &options->check_host_ip; - goto parse_flag; - -+ case oHPNDisabled: -+ intptr = &options->hpn_disabled; -+ goto parse_flag; -+ -+ case oHPNBufferSize: -+ intptr = &options->hpn_buffer_size; -+ goto parse_int; -+ -+ case oTcpRcvBufPoll: -+ intptr = &options->tcp_rcv_buf_poll; -+ goto parse_flag; -+ - case oVerifyHostKeyDNS: - intptr = &options->verify_host_key_dns; - multistate_ptr = multistate_yesnoask; -@@ -1165,6 +1183,10 @@ - intptr = &options->connection_attempts; - goto parse_int; - -+ case oTcpRcvBuf: -+ intptr = &options->tcp_rcv_buf; -+ goto parse_int; -+ - case oCipher: - intptr = &options->cipher; - arg = strdelim(&s); -@@ -1845,6 +1867,10 @@ - options->ip_qos_interactive = -1; - options->ip_qos_bulk = -1; - options->request_tty = -1; -+ options->hpn_disabled = -1; -+ options->hpn_buffer_size = -1; -+ options->tcp_rcv_buf_poll = -1; -+ options->tcp_rcv_buf = -1; - options->proxy_use_fdpass = -1; - options->ignored_unknown = NULL; - options->num_canonical_domains = 0; -@@ -2008,6 +2034,28 @@ - options->server_alive_interval = 0; - if (options->server_alive_count_max == -1) - options->server_alive_count_max = 3; -+ if (options->hpn_disabled == -1) -+ options->hpn_disabled = 0; -+ if (options->hpn_buffer_size > -1) -+ { -+ /* if a user tries to set the size to 0 set it to 1KB */ -+ if (options->hpn_buffer_size == 0) -+ options->hpn_buffer_size = 1; -+ /*limit the buffer to 64MB*/ -+ if (options->hpn_buffer_size > 64*1024) -+ { -+ options->hpn_buffer_size = 64*1024*1024; -+ debug("User requested buffer larger than 64MB. Request reverted to 64MB"); -+ } -+ else options->hpn_buffer_size *= 1024; -+ debug("hpn_buffer_size set to %d", options->hpn_buffer_size); -+ } -+ if (options->tcp_rcv_buf == 0) -+ options->tcp_rcv_buf = 1; -+ if (options->tcp_rcv_buf > -1) -+ options->tcp_rcv_buf *=1024; -+ if (options->tcp_rcv_buf_poll == -1) -+ options->tcp_rcv_buf_poll = 1; - if (options->control_master == -1) - options->control_master = 0; - if (options->control_persist == -1) { ---- a/readconf.h -+++ b/readconf.h -@@ -57,6 +57,10 @@ typedef struct { - int compression_level; /* Compression level 1 (fast) to 9 - * (best). */ - int tcp_keep_alive; /* Set SO_KEEPALIVE. */ -+ int tcp_rcv_buf; /* user switch to set tcp recv buffer */ -+ int tcp_rcv_buf_poll; /* Option to poll recv buf every window transfer */ -+ int hpn_disabled; /* Switch to disable HPN buffer management */ -+ int hpn_buffer_size; /* User definable size for HPN buffer window */ - int ip_qos_interactive; /* IP ToS/DSCP/class for interactive */ - int ip_qos_bulk; /* IP ToS/DSCP/class for bulk traffic */ - LogLevel log_level; /* Level for logging. */ ---- a/scp.c -+++ b/scp.c -@@ -763,7 +763,7 @@ - off_t i, statbytes; - size_t amt, nr; - int fd = -1, haderr, indx; -- char *last, *name, buf[2048], encname[PATH_MAX]; -+ char *last, *name, buf[16384], encname[PATH_MAX]; - int len; - - for (indx = 0; indx < argc; ++indx) { -@@ -931,7 +931,7 @@ - off_t size, statbytes; - unsigned long long ull; - int setimes, targisdir, wrerrno = 0; -- char ch, *cp, *np, *targ, *why, *vect[1], buf[2048], visbuf[2048]; -+ char ch, *cp, *np, *targ, *why, *vect[1], buf[16384], visbuf[16384]; - struct timeval tv[2]; - - #define atime tv[0] ---- a/servconf.c -+++ b/servconf.c -@@ -159,6 +159,9 @@ - options->authorized_principals_file = NULL; - options->authorized_principals_command = NULL; - options->authorized_principals_command_user = NULL; -+ options->tcp_rcv_buf_poll = -1; -+ options->hpn_disabled = -1; -+ options->hpn_buffer_size = -1; - options->ip_qos_interactive = -1; - options->ip_qos_bulk = -1; - options->version_addendum = NULL; -@@ -190,6 +193,7 @@ - void - fill_default_server_options(ServerOptions *options) - { -+ int sock, socksize, socksizelen = sizeof(int); - int i; - - /* Portable-specific options */ -@@ -319,6 +323,41 @@ - } - if (options->permit_tun == -1) - options->permit_tun = SSH_TUNMODE_NO; -+ if (options->hpn_disabled == -1) -+ options->hpn_disabled = 0; -+ -+ if (options->hpn_buffer_size == -1) { -+ /* option not explicitly set. Now we have to figure out */ -+ /* what value to use */ -+ if (options->hpn_disabled == 1) { -+ options->hpn_buffer_size = CHAN_SES_WINDOW_DEFAULT; -+ } else { -+ /* get the current RCV size and set it to that */ -+ /*create a socket but don't connect it */ -+ /* we use that the get the rcv socket size */ -+ sock = socket(AF_INET, SOCK_STREAM, 0); -+ getsockopt(sock, SOL_SOCKET, SO_RCVBUF, -+ &socksize, &socksizelen); -+ close(sock); -+ options->hpn_buffer_size = socksize; -+ debug ("HPN Buffer Size: %d", options->hpn_buffer_size); -+ } -+ } else { -+ /* we have to do this incase the user sets both values in a contradictory */ -+ /* manner. hpn_disabled overrrides hpn_buffer_size*/ -+ if (options->hpn_disabled <= 0) { -+ if (options->hpn_buffer_size == 0) -+ options->hpn_buffer_size = 1; -+ /* limit the maximum buffer to 64MB */ -+ if (options->hpn_buffer_size > 64*1024) { -+ options->hpn_buffer_size = 64*1024*1024; -+ } else { -+ options->hpn_buffer_size *= 1024; -+ } -+ } else -+ options->hpn_buffer_size = CHAN_TCP_WINDOW_DEFAULT; -+ } -+ - if (options->ip_qos_interactive == -1) - options->ip_qos_interactive = IPTOS_LOWDELAY; - if (options->ip_qos_bulk == -1) -@@ -413,6 +452,7 @@ - sHostCertificate, - sRevokedKeys, sTrustedUserCAKeys, sAuthorizedPrincipalsFile, - sAuthorizedPrincipalsCommand, sAuthorizedPrincipalsCommandUser, -+ sTcpRcvBufPoll, sHPNDisabled, sHPNBufferSize, - sKexAlgorithms, sIPQoS, sVersionAddendum, - sAuthorizedKeysCommand, sAuthorizedKeysCommandUser, - sAuthenticationMethods, sHostKeyAgent, sPermitUserRC, -@@ -548,6 +588,9 @@ - { "revokedkeys", sRevokedKeys, SSHCFG_ALL }, - { "trustedusercakeys", sTrustedUserCAKeys, SSHCFG_ALL }, - { "authorizedprincipalsfile", sAuthorizedPrincipalsFile, SSHCFG_ALL }, -+ { "hpndisabled", sHPNDisabled, SSHCFG_ALL }, -+ { "hpnbuffersize", sHPNBufferSize, SSHCFG_ALL }, -+ { "tcprcvbufpoll", sTcpRcvBufPoll, SSHCFG_ALL }, - { "kexalgorithms", sKexAlgorithms, SSHCFG_GLOBAL }, - { "ipqos", sIPQoS, SSHCFG_ALL }, - { "authorizedkeyscommand", sAuthorizedKeysCommand, SSHCFG_ALL }, -@@ -587,6 +630,7 @@ - - for (i = 0; keywords[i].name; i++) - if (strcasecmp(cp, keywords[i].name) == 0) { -+ debug ("Config token is %s", keywords[i].name); - *flags = keywords[i].flags; - return keywords[i].opcode; - } -@@ -1148,6 +1192,19 @@ - if (*activep && *intptr == -1) - *intptr = value; - break; -+ -+ -+ case sTcpRcvBufPoll: -+ intptr = &options->tcp_rcv_buf_poll; -+ goto parse_flag; -+ -+ case sHPNDisabled: -+ intptr = &options->hpn_disabled; -+ goto parse_flag; -+ -+ case sHPNBufferSize: -+ intptr = &options->hpn_buffer_size; -+ goto parse_int; - - case sIgnoreUserKnownHosts: - intptr = &options->ignore_user_known_hosts; ---- a/servconf.h -+++ b/servconf.h -@@ -166,6 +166,9 @@ - char *adm_forced_command; - - int use_pam; /* Enable auth via PAM */ -+ int tcp_rcv_buf_poll; /* poll tcp rcv window in autotuning kernels*/ -+ int hpn_disabled; /* disable hpn functionality. false by default */ -+ int hpn_buffer_size; /* set the hpn buffer size - default 3MB */ - - int permit_tun; - ---- a/serverloop.c -+++ b/serverloop.c -@@ -526,8 +526,12 @@ - sock = tun_open(tun, mode); - if (sock < 0) - goto done; -+ if (options.hpn_disabled) - c = channel_new("tun", SSH_CHANNEL_OPEN, sock, sock, -1, - CHAN_TCP_WINDOW_DEFAULT, CHAN_TCP_PACKET_DEFAULT, 0, "tun", 1); -+ else -+ c = channel_new("tun", SSH_CHANNEL_OPEN, sock, sock, -1, -+ options.hpn_buffer_size, CHAN_TCP_PACKET_DEFAULT, 0, "tun", 1); - c->datagram = 1; - #if defined(SSH_TUN_FILTER) - if (mode == SSH_TUNMODE_POINTOPOINT) -@@ -563,6 +567,8 @@ - c = channel_new("session", SSH_CHANNEL_LARVAL, - -1, -1, -1, /*window size*/0, CHAN_SES_PACKET_DEFAULT, - 0, "server-session", 1); -+ if ((options.tcp_rcv_buf_poll) && (!options.hpn_disabled)) -+ c->dynamic_window = 1; - if (session_open(the_authctxt, c->self) != 1) { - debug("session open failed, free channel %d", c->self); - channel_free(c); ---- a/session.c -+++ b/session.c -@@ -220,6 +220,7 @@ - goto authsock_err; - - /* Allocate a channel for the authentication agent socket. */ -+ /* this shouldn't matter if its hpn or not - cjr */ - nc = channel_new("auth socket", - SSH_CHANNEL_AUTH_SOCKET, sock, sock, -1, - CHAN_X11_WINDOW_DEFAULT, CHAN_X11_PACKET_DEFAULT, -@@ -2121,10 +2122,16 @@ - */ - if (s->chanid == -1) - fatal("no channel for session %d", s->self); -+ if (options.hpn_disabled) - channel_set_fds(s->chanid, - fdout, fdin, fderr, - ignore_fderr ? CHAN_EXTENDED_IGNORE : CHAN_EXTENDED_READ, - 1, is_tty, CHAN_SES_WINDOW_DEFAULT); -+ else -+ channel_set_fds(s->chanid, -+ fdout, fdin, fderr, -+ ignore_fderr ? CHAN_EXTENDED_IGNORE : CHAN_EXTENDED_READ, -+ 1, is_tty, options.hpn_buffer_size); - } - - /* ---- a/sftp.1 -+++ b/sftp.1 -@@ -266,7 +266,8 @@ - Specify how many requests may be outstanding at any one time. - Increasing this may slightly improve file transfer speed - but will increase memory usage. --The default is 64 outstanding requests. -+The default is 256 outstanding requests providing for 8MB -+of outstanding data with a 32KB buffer. - .It Fl r - Recursively copy entire directories when uploading and downloading. - Note that ---- a/sftp.c -+++ b/sftp.c -@@ -72,7 +72,7 @@ - #include "sftp-client.h" - - #define DEFAULT_COPY_BUFLEN 32768 /* Size of buffer for up/download */ --#define DEFAULT_NUM_REQUESTS 64 /* # concurrent outstanding requests */ -+#define DEFAULT_NUM_REQUESTS 256 /* # concurrent outstanding requests */ - - /* File to read commands from */ - FILE* infile; ---- a/ssh.c -+++ b/ssh.c -@@ -1910,6 +1910,9 @@ - { - Channel *c; - int window, packetmax, in, out, err; -+ int sock; -+ int socksize; -+ int socksizelen = sizeof(int); - - if (stdin_null_flag) { - in = open(_PATH_DEVNULL, O_RDONLY); -@@ -1930,9 +1933,74 @@ - if (!isatty(err)) - set_nonblock(err); - -- window = CHAN_SES_WINDOW_DEFAULT; -+ /* we need to check to see if what they want to do about buffer */ -+ /* sizes here. In a hpn to nonhpn connection we want to limit */ -+ /* the window size to something reasonable in case the far side */ -+ /* has the large window bug. In hpn to hpn connection we want to */ -+ /* use the max window size but allow the user to override it */ -+ /* lastly if they disabled hpn then use the ssh std window size */ -+ -+ /* so why don't we just do a getsockopt() here and set the */ -+ /* ssh window to that? In the case of a autotuning receive */ -+ /* window the window would get stuck at the initial buffer */ -+ /* size generally less than 96k. Therefore we need to set the */ -+ /* maximum ssh window size to the maximum hpn buffer size */ -+ /* unless the user has specifically set the tcprcvbufpoll */ -+ /* to no. In which case we *can* just set the window to the */ -+ /* minimum of the hpn buffer size and tcp receive buffer size */ -+ -+ if (tty_flag) -+ options.hpn_buffer_size = CHAN_SES_WINDOW_DEFAULT; -+ else -+ options.hpn_buffer_size = 2*1024*1024; -+ -+ if (datafellows & SSH_BUG_LARGEWINDOW) -+ { -+ debug("HPN to Non-HPN Connection"); -+ } -+ else -+ { -+ if (options.tcp_rcv_buf_poll <= 0) -+ { -+ sock = socket(AF_INET, SOCK_STREAM, 0); -+ getsockopt(sock, SOL_SOCKET, SO_RCVBUF, -+ &socksize, &socksizelen); -+ close(sock); -+ debug("socksize %d", socksize); -+ options.hpn_buffer_size = socksize; -+ debug ("HPNBufferSize set to TCP RWIN: %d", options.hpn_buffer_size); -+ } -+ else -+ { -+ if (options.tcp_rcv_buf > 0) -+ { -+ /*create a socket but don't connect it */ -+ /* we use that the get the rcv socket size */ -+ sock = socket(AF_INET, SOCK_STREAM, 0); -+ /* if they are using the tcp_rcv_buf option */ -+ /* attempt to set the buffer size to that */ -+ if (options.tcp_rcv_buf) -+ setsockopt(sock, SOL_SOCKET, SO_RCVBUF, (void *)&options.tcp_rcv_buf, -+ sizeof(options.tcp_rcv_buf)); -+ getsockopt(sock, SOL_SOCKET, SO_RCVBUF, -+ &socksize, &socksizelen); -+ close(sock); -+ debug("socksize %d", socksize); -+ options.hpn_buffer_size = socksize; -+ debug ("HPNBufferSize set to user TCPRcvBuf: %d", options.hpn_buffer_size); -+ } -+ } -+ } -+ -+ debug("Final hpn_buffer_size = %d", options.hpn_buffer_size); -+ -+ window = options.hpn_buffer_size; -+ -+ channel_set_hpn(options.hpn_disabled, options.hpn_buffer_size); -+ - packetmax = CHAN_SES_PACKET_DEFAULT; - if (tty_flag) { -+ window = 4*CHAN_SES_PACKET_DEFAULT; - window >>= 1; - packetmax >>= 1; - } -@@ -1941,6 +2009,10 @@ - window, packetmax, CHAN_EXTENDED_WRITE, - "client-session", /*nonblock*/0); - -+ if ((options.tcp_rcv_buf_poll > 0) && (!options.hpn_disabled)) { -+ c->dynamic_window = 1; -+ debug ("Enabled Dynamic Window Scaling"); -+ } - debug3("ssh_session2_open: channel_new: %d", c->self); - - channel_send_open(c->self); ---- a/sshconnect.c -+++ b/sshconnect.c -@@ -267,6 +267,31 @@ - } - - /* -+ * Set TCP receive buffer if requested. -+ * Note: tuning needs to happen after the socket is -+ * created but before the connection happens -+ * so winscale is negotiated properly -cjr -+ */ -+static void -+ssh_set_socket_recvbuf(int sock) -+{ -+ void *buf = (void *)&options.tcp_rcv_buf; -+ int sz = sizeof(options.tcp_rcv_buf); -+ int socksize; -+ int socksizelen = sizeof(int); -+ -+ debug("setsockopt Attempting to set SO_RCVBUF to %d", options.tcp_rcv_buf); -+ if (setsockopt(sock, SOL_SOCKET, SO_RCVBUF, buf, sz) >= 0) { -+ getsockopt(sock, SOL_SOCKET, SO_RCVBUF, &socksize, &socksizelen); -+ debug("setsockopt SO_RCVBUF: %.100s %d", strerror(errno), socksize); -+ } -+ else -+ error("Couldn't set socket receive buffer to %d: %.100s", -+ options.tcp_rcv_buf, strerror(errno)); -+} -+ -+ -+/* - * Creates a (possibly privileged) socket for use as the ssh connection. - */ - static int -@@ -282,6 +307,9 @@ - } - fcntl(sock, F_SETFD, FD_CLOEXEC); - -+ if (options.tcp_rcv_buf > 0) -+ ssh_set_socket_recvbuf(sock); -+ - /* Bind the socket to an alternative local IP address */ - if (options.bind_address == NULL && !privileged) - return sock; -@@ -526,10 +554,10 @@ - /* Send our own protocol version identification. */ - if (compat20) { - xasprintf(&client_version_string, "SSH-%d.%d-%.100s\r\n", -- PROTOCOL_MAJOR_2, PROTOCOL_MINOR_2, SSH_VERSION); -+ PROTOCOL_MAJOR_2, PROTOCOL_MINOR_2, SSH_RELEASE); - } else { - xasprintf(&client_version_string, "SSH-%d.%d-%.100s\n", -- PROTOCOL_MAJOR_1, minor1, SSH_VERSION); -+ PROTOCOL_MAJOR_1, minor1, SSH_RELEASE); - } - if (atomicio(vwrite, connection_out, client_version_string, - strlen(client_version_string)) != strlen(client_version_string)) ---- a/sshd.c -+++ b/sshd.c -@@ -1020,6 +1020,8 @@ - int ret, listen_sock, on = 1; - struct addrinfo *ai; - char ntop[NI_MAXHOST], strport[NI_MAXSERV]; -+ int socksize; -+ int socksizelen = sizeof(int); - - for (ai = options.listen_addrs; ai; ai = ai->ai_next) { - if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6) -@@ -1060,6 +1062,11 @@ - - debug("Bind to port %s on %s.", strport, ntop); - -+ getsockopt(listen_sock, SOL_SOCKET, SO_RCVBUF, -+ &socksize, &socksizelen); -+ debug("Server TCP RWIN socket size: %d", socksize); -+ debug("HPN Buffer Size: %d", options.hpn_buffer_size); -+ - /* Bind the socket to the desired port. */ - if (bind(listen_sock, ai->ai_addr, ai->ai_addrlen) < 0) { - error("Bind to port %s on %s failed: %.200s.", -@@ -1977,6 +1984,9 @@ - verbose("Connection from %s port %d on %s port %d", - remote_ip, remote_port, laddr, ssh_local_port(ssh)); - free(laddr); -+ -+ /* set the HPN options for the child */ -+ channel_set_hpn(options.hpn_disabled, options.hpn_buffer_size); - - /* - * We don't want to listen forever unless the other side ---- a/sshd_config -+++ b/sshd_config -@@ -99,7 +99,7 @@ - #ClientAliveInterval 0 - #ClientAliveCountMax 3 - #UseDNS no --#PidFile /var/run/sshd.pid -+#PidFile /run/sshd.pid - #MaxStartups 10:30:100 - #PermitTunnel no - #ChrootDirectory none -@@ -109,7 +109,18 @@ - #Banner none - - # override default of no subsystems --Subsystem sftp /usr/libexec/sftp-server -+Subsystem sftp /usr/lib/ssh/sftp-server -+ -+# the following are HPN related configuration options -+# tcp receive buffer polling. disable in non autotuning kernels -+#TcpRcvBufPoll yes -+ -+# disable hpn performance boosts -+#HPNDisabled no -+ -+# buffer size for hpn to non-hpn connections -+#HPNBufferSize 2048 -+ - - # Example of overriding settings on a per-user basis - #Match User anoncvs ---- a/version.h -+++ b/version.h -@@ -3,4 +3,5 @@ - #define SSH_VERSION "OpenSSH_7.4" - - #define SSH_PORTABLE "p1" --#define SSH_RELEASE SSH_VERSION SSH_PORTABLE -+#define SSH_HPN "-hpn14v4" -+#define SSH_RELEASE SSH_VERSION SSH_PORTABLE SSH_HPN |