X-Git-Url: http://andersk.mit.edu/gitweb/gssapi-openssh.git/blobdiff_plain/7a056ed1b7eaf26050195d8c40b418b3428fcc6a..eabf5e199ea94140088fedf87e34251240be7359:/openssh/readconf.c diff --git a/openssh/readconf.c b/openssh/readconf.c index 211075d..a51848e 100644 --- a/openssh/readconf.c +++ b/openssh/readconf.c @@ -12,7 +12,7 @@ */ #include "includes.h" -RCSID("$OpenBSD: readconf.c,v 1.100 2002/06/19 00:27:55 deraadt Exp $"); +RCSID("$OpenBSD: readconf.c,v 1.128 2004/03/05 10:53:58 markus Exp $"); #include "ssh.h" #include "xmalloc.h" @@ -57,7 +57,6 @@ RCSID("$OpenBSD: readconf.c,v 1.100 2002/06/19 00:27:55 deraadt Exp $"); Host fascist.blob.com Port 23123 User tylonen - RhostsAuthentication no PasswordAuthentication no Host puukko.hut.fi @@ -75,12 +74,11 @@ RCSID("$OpenBSD: readconf.c,v 1.100 2002/06/19 00:27:55 deraadt Exp $"); Host * ForwardAgent no ForwardX11 no - RhostsAuthentication yes PasswordAuthentication yes RSAAuthentication yes RhostsRSAAuthentication yes StrictHostKeyChecking yes - KeepAlives no + TcpKeepAlive no IdentityFile ~/.ssh/identity Port 22 EscapeChar ~ @@ -91,36 +89,24 @@ RCSID("$OpenBSD: readconf.c,v 1.100 2002/06/19 00:27:55 deraadt Exp $"); typedef enum { oBadOption, - oForwardAgent, oForwardX11, oGatewayPorts, oRhostsAuthentication, + oForwardAgent, oForwardX11, oForwardX11Trusted, oGatewayPorts, oPasswordAuthentication, oRSAAuthentication, oChallengeResponseAuthentication, oXAuthLocation, -#if defined(KRB4) || defined(KRB5) - oKerberosAuthentication, -#endif -#ifdef GSSAPI - oGssAuthentication, oGssKeyEx, oGssDelegateCreds, -#ifdef GSI - oGssGlobusDelegateLimitedCreds, -#endif /* GSI */ -#endif /* GSSAPI */ -#if defined(AFS) || defined(KRB5) - oKerberosTgtPassing, -#endif -#ifdef AFS - oAFSTokenPassing, -#endif oIdentityFile, oHostName, oPort, oCipher, oRemoteForward, oLocalForward, oUser, oHost, oEscapeChar, oRhostsRSAAuthentication, oProxyCommand, oGlobalKnownHostsFile, oUserKnownHostsFile, oConnectionAttempts, oBatchMode, oCheckHostIP, oStrictHostKeyChecking, oCompression, - oCompressionLevel, oKeepAlives, oNumberOfPasswordPrompts, + oCompressionLevel, oTCPKeepAlive, oNumberOfPasswordPrompts, oUsePrivilegedPort, oLogLevel, oCiphers, oProtocol, oMacs, oGlobalKnownHostsFile2, oUserKnownHostsFile2, oPubkeyAuthentication, oKbdInteractiveAuthentication, oKbdInteractiveDevices, oHostKeyAlias, oDynamicForward, oPreferredAuthentications, oHostbasedAuthentication, oHostKeyAlgorithms, oBindAddress, oSmartcardDevice, oClearAllForwardings, oNoHostAuthenticationForLocalhost, - oDeprecated + oEnableSSHKeysign, oRekeyLimit, oVerifyHostKeyDNS, oConnectTimeout, + oAddressFamily, oGssAuthentication, oGssKeyEx, oGssDelegateCreds, + oServerAliveInterval, oServerAliveCountMax, oIdentitiesOnly, + oDeprecated, oUnsupported } OpCodes; /* Textual representations of the tokens. */ @@ -131,10 +117,11 @@ static struct { } keywords[] = { { "forwardagent", oForwardAgent }, { "forwardx11", oForwardX11 }, + { "forwardx11trusted", oForwardX11Trusted }, { "xauthlocation", oXAuthLocation }, { "gatewayports", oGatewayPorts }, { "useprivilegedport", oUsePrivilegedPort }, - { "rhostsauthentication", oRhostsAuthentication }, + { "rhostsauthentication", oDeprecated }, { "passwordauthentication", oPasswordAuthentication }, { "kbdinteractiveauthentication", oKbdInteractiveAuthentication }, { "kbdinteractivedevices", oKbdInteractiveDevices }, @@ -146,29 +133,23 @@ static struct { { "challengeresponseauthentication", oChallengeResponseAuthentication }, { "skeyauthentication", oChallengeResponseAuthentication }, /* alias */ { "tisauthentication", oChallengeResponseAuthentication }, /* alias */ -#if defined(KRB4) || defined(KRB5) - { "kerberosauthentication", oKerberosAuthentication }, -#endif -#ifdef GSSAPI + { "kerberosauthentication", oUnsupported }, + { "kerberostgtpassing", oUnsupported }, + { "afstokenpassing", oUnsupported }, +#if defined(GSSAPI) { "gssapiauthentication", oGssAuthentication }, { "gssapikeyexchange", oGssKeyEx }, { "gssapidelegatecredentials", oGssDelegateCreds }, -#ifdef GSI - /* For backwards compatability with old 1.2.27 client code */ - { "forwardgssapiglobusproxy", oGssDelegateCreds }, /* alias */ - { "forwardgssapiglobuslimitedproxy", oGssGlobusDelegateLimitedCreds }, -#endif /* GSI */ -#endif /* GSSAPI */ -#if defined(AFS) || defined(KRB5) - { "kerberostgtpassing", oKerberosTgtPassing }, -#endif -#ifdef AFS - { "afstokenpassing", oAFSTokenPassing }, +#else + { "gssapiauthentication", oUnsupported }, + { "gssapikeyexchange", oUnsupported }, + { "gssapidelegatecredentials", oUnsupported }, #endif { "fallbacktorsh", oDeprecated }, { "usersh", oDeprecated }, { "identityfile", oIdentityFile }, { "identityfile2", oIdentityFile }, /* alias */ + { "identitiesonly", oIdentitiesOnly }, { "hostname", oHostName }, { "hostkeyalias", oHostKeyAlias }, { "proxycommand", oProxyCommand }, @@ -192,16 +173,28 @@ static struct { { "stricthostkeychecking", oStrictHostKeyChecking }, { "compression", oCompression }, { "compressionlevel", oCompressionLevel }, - { "keepalive", oKeepAlives }, + { "tcpkeepalive", oTCPKeepAlive }, + { "keepalive", oTCPKeepAlive }, /* obsolete */ { "numberofpasswordprompts", oNumberOfPasswordPrompts }, { "loglevel", oLogLevel }, { "dynamicforward", oDynamicForward }, { "preferredauthentications", oPreferredAuthentications }, { "hostkeyalgorithms", oHostKeyAlgorithms }, { "bindaddress", oBindAddress }, +#ifdef SMARTCARD { "smartcarddevice", oSmartcardDevice }, +#else + { "smartcarddevice", oUnsupported }, +#endif { "clearallforwardings", oClearAllForwardings }, + { "enablesshkeysign", oEnableSSHKeysign }, + { "verifyhostkeydns", oVerifyHostKeyDNS }, { "nohostauthenticationforlocalhost", oNoHostAuthenticationForLocalhost }, + { "rekeylimit", oRekeyLimit }, + { "connecttimeout", oConnectTimeout }, + { "addressfamily", oAddressFamily }, + { "serveraliveinterval", oServerAliveInterval }, + { "serveralivecountmax", oServerAliveCountMax }, { NULL, oBadOption } }; @@ -215,7 +208,7 @@ add_local_forward(Options *options, u_short port, const char *host, u_short host_port) { Forward *fwd; -#ifndef HAVE_CYGWIN +#ifndef NO_IPPORT_RESERVED_CONCEPT extern uid_t original_real_uid; if (port < IPPORT_RESERVED && original_real_uid != 0) fatal("Privileged ports can only be forwarded by root."); @@ -282,17 +275,26 @@ parse_token(const char *cp, const char *filename, int linenum) * Processes a single option line as used in the configuration files. This * only sets those values that have not already been set. */ +#define WHITESPACE " \t\r\n" int process_config_line(Options *options, const char *host, char *line, const char *filename, int linenum, int *activep) { - char buf[256], *s, *string, **charptr, *endofnumber, *keyword, *arg; + char buf[256], *s, **charptr, *endofnumber, *keyword, *arg; int opcode, *intptr, value; + size_t len; u_short fwd_port, fwd_host_port; char sfwd_host_port[6]; + /* Strip trailing whitespace */ + for(len = strlen(line) - 1; len > 0; len--) { + if (strchr(WHITESPACE, line[len]) == NULL) + break; + line[len] = '\0'; + } + s = line; /* Get the keyword. (Each line is supposed to begin with a keyword). */ keyword = strdelim(&s); @@ -309,6 +311,20 @@ process_config_line(Options *options, const char *host, /* don't panic, but count bad options */ return -1; /* NOTREACHED */ + case oConnectTimeout: + intptr = &options->connection_timeout; +parse_time: + arg = strdelim(&s); + if (!arg || *arg == '\0') + fatal("%s line %d: missing time value.", + filename, linenum); + if ((value = convtime(arg)) == -1) + fatal("%s line %d: invalid time value.", + filename, linenum); + if (*intptr == -1) + *intptr = value; + break; + case oForwardAgent: intptr = &options->forward_agent; parse_flag: @@ -330,6 +346,10 @@ parse_flag: intptr = &options->forward_x11; goto parse_flag; + case oForwardX11Trusted: + intptr = &options->forward_x11_trusted; + goto parse_flag; + case oGatewayPorts: intptr = &options->gateway_ports; goto parse_flag; @@ -338,10 +358,6 @@ parse_flag: intptr = &options->use_privileged_port; goto parse_flag; - case oRhostsAuthentication: - intptr = &options->rhosts_authentication; - goto parse_flag; - case oPasswordAuthentication: intptr = &options->password_authentication; goto parse_flag; @@ -373,16 +389,11 @@ parse_flag: case oChallengeResponseAuthentication: intptr = &options->challenge_response_authentication; goto parse_flag; -#if defined(KRB4) || defined(KRB5) - case oKerberosAuthentication: - intptr = &options->kerberos_authentication; - goto parse_flag; -#endif -#ifdef GSSAPI + case oGssAuthentication: intptr = &options->gss_authentication; goto parse_flag; - + case oGssKeyEx: intptr = &options->gss_keyex; goto parse_flag; @@ -390,25 +401,7 @@ parse_flag: case oGssDelegateCreds: intptr = &options->gss_deleg_creds; goto parse_flag; - -#ifdef GSI - case oGssGlobusDelegateLimitedCreds: - intptr = &options->gss_globus_deleg_limited_proxy; - goto parse_flag; -#endif /* GSI */ -#endif /* GSSAPI */ - -#if defined(AFS) || defined(KRB5) - case oKerberosTgtPassing: - intptr = &options->kerberos_tgt_passing; - goto parse_flag; -#endif -#ifdef AFS - case oAFSTokenPassing: - intptr = &options->afs_token_passing; - goto parse_flag; -#endif case oBatchMode: intptr = &options->batch_mode; goto parse_flag; @@ -417,8 +410,13 @@ parse_flag: intptr = &options->check_host_ip; goto parse_flag; + case oVerifyHostKeyDNS: + intptr = &options->verify_host_key_dns; + goto parse_yesnoask; + case oStrictHostKeyChecking: intptr = &options->strict_host_key_checking; +parse_yesnoask: arg = strdelim(&s); if (!arg || *arg == '\0') fatal("%.200s line %d: Missing yes/no/ask argument.", @@ -440,8 +438,8 @@ parse_flag: intptr = &options->compression; goto parse_flag; - case oKeepAlives: - intptr = &options->keepalives; + case oTCPKeepAlive: + intptr = &options->tcp_keep_alive; goto parse_flag; case oNoHostAuthenticationForLocalhost: @@ -456,6 +454,31 @@ parse_flag: intptr = &options->compression_level; goto parse_int; + case oRekeyLimit: + intptr = &options->rekey_limit; + arg = strdelim(&s); + if (!arg || *arg == '\0') + fatal("%.200s line %d: Missing argument.", filename, linenum); + if (arg[0] < '0' || arg[0] > '9') + fatal("%.200s line %d: Bad number.", filename, linenum); + value = strtol(arg, &endofnumber, 10); + if (arg == endofnumber) + fatal("%.200s line %d: Bad number.", filename, linenum); + switch (toupper(*endofnumber)) { + case 'K': + value *= 1<<10; + break; + case 'M': + value *= 1<<20; + break; + case 'G': + value *= 1<<30; + break; + } + if (*activep && *intptr == -1) + *intptr = value; + break; + case oIdentityFile: arg = strdelim(&s); if (!arg || *arg == '\0') @@ -522,17 +545,12 @@ parse_string: goto parse_string; case oProxyCommand: + if (s == NULL) + fatal("%.200s line %d: Missing argument.", filename, linenum); charptr = &options->proxy_command; - string = xstrdup(""); - while ((arg = strdelim(&s)) != NULL && *arg != '\0') { - string = xrealloc(string, strlen(string) + strlen(arg) + 2); - strcat(string, " "); - strcat(string, arg); - } + len = strspn(s, WHITESPACE "="); if (*activep && *charptr == NULL) - *charptr = string; - else - xfree(string); + *charptr = xstrdup(s + len); return 0; case oPort: @@ -666,7 +684,7 @@ parse_int: fatal("%.200s line %d: Badly formatted port number.", filename, linenum); if (*activep) - add_local_forward(options, fwd_port, "socks4", 0); + add_local_forward(options, fwd_port, "socks", 0); break; case oClearAllForwardings: @@ -706,11 +724,47 @@ parse_int: *intptr = value; break; + case oAddressFamily: + arg = strdelim(&s); + intptr = &options->address_family; + if (strcasecmp(arg, "inet") == 0) + value = AF_INET; + else if (strcasecmp(arg, "inet6") == 0) + value = AF_INET6; + else if (strcasecmp(arg, "any") == 0) + value = AF_UNSPEC; + else + fatal("Unsupported AddressFamily \"%s\"", arg); + if (*activep && *intptr == -1) + *intptr = value; + break; + + case oEnableSSHKeysign: + intptr = &options->enable_ssh_keysign; + goto parse_flag; + + case oIdentitiesOnly: + intptr = &options->identities_only; + goto parse_flag; + + case oServerAliveInterval: + intptr = &options->server_alive_interval; + goto parse_time; + + case oServerAliveCountMax: + intptr = &options->server_alive_count_max; + goto parse_int; + case oDeprecated: debug("%s line %d: Deprecated option \"%s\"", filename, linenum, keyword); return 0; + case oUnsupported: + error("%s line %d: Unsupported option \"%s\"", + filename, linenum, keyword); + return 0; + default: fatal("process_config_line: Unimplemented opcode %d", opcode); } @@ -777,31 +831,16 @@ initialize_options(Options * options) memset(options, 'X', sizeof(*options)); options->forward_agent = -1; options->forward_x11 = -1; + options->forward_x11_trusted = -1; options->xauth_location = NULL; options->gateway_ports = -1; options->use_privileged_port = -1; - options->rhosts_authentication = -1; options->rsa_authentication = -1; options->pubkey_authentication = -1; options->challenge_response_authentication = -1; -#ifdef GSSAPI - options->gss_authentication = -1; + options->gss_authentication = -1; options->gss_keyex = -1; - options->gss_deleg_creds = -1; -#ifdef GSI - options->gss_globus_deleg_limited_proxy = -1; -#endif /* GSI */ -#endif /* GSSAPI */ - -#if defined(KRB4) || defined(KRB5) - options->kerberos_authentication = -1; -#endif -#if defined(AFS) || defined(KRB5) - options->kerberos_tgt_passing = -1; -#endif -#ifdef AFS - options->afs_token_passing = -1; -#endif + options->gss_deleg_creds = -1; options->password_authentication = -1; options->kbd_interactive_authentication = -1; options->kbd_interactive_devices = NULL; @@ -811,10 +850,12 @@ initialize_options(Options * options) options->check_host_ip = -1; options->strict_host_key_checking = -1; options->compression = -1; - options->keepalives = -1; + options->tcp_keep_alive = -1; options->compression_level = -1; options->port = -1; + options->address_family = -1; options->connection_attempts = -1; + options->connection_timeout = -1; options->number_of_password_prompts = -1; options->cipher = -1; options->ciphers = NULL; @@ -838,7 +879,13 @@ initialize_options(Options * options) options->preferred_authentications = NULL; options->bind_address = NULL; options->smartcard_device = NULL; + options->enable_ssh_keysign = - 1; options->no_host_authentication_for_localhost = - 1; + options->identities_only = - 1; + options->rekey_limit = - 1; + options->verify_host_key_dns = -1; + options->server_alive_interval = -1; + options->server_alive_count_max = -1; } /* @@ -855,44 +902,26 @@ fill_default_options(Options * options) options->forward_agent = 0; if (options->forward_x11 == -1) options->forward_x11 = 0; + if (options->forward_x11_trusted == -1) + options->forward_x11_trusted = 0; if (options->xauth_location == NULL) options->xauth_location = _PATH_XAUTH; if (options->gateway_ports == -1) options->gateway_ports = 0; if (options->use_privileged_port == -1) options->use_privileged_port = 0; - if (options->rhosts_authentication == -1) - options->rhosts_authentication = 0; if (options->rsa_authentication == -1) options->rsa_authentication = 1; if (options->pubkey_authentication == -1) options->pubkey_authentication = 1; if (options->challenge_response_authentication == -1) options->challenge_response_authentication = 1; -#ifdef GSSAPI if (options->gss_authentication == -1) options->gss_authentication = 1; if (options->gss_keyex == -1) options->gss_keyex = 1; if (options->gss_deleg_creds == -1) options->gss_deleg_creds = 1; -#ifdef GSI - if (options->gss_globus_deleg_limited_proxy == -1) - options->gss_globus_deleg_limited_proxy = 0; -#endif /* GSI */ -#endif /* GSSAPI */ -#if defined(KRB4) || defined(KRB5) - if (options->kerberos_authentication == -1) - options->kerberos_authentication = 1; -#endif -#if defined(AFS) || defined(KRB5) - if (options->kerberos_tgt_passing == -1) - options->kerberos_tgt_passing = 1; -#endif -#ifdef AFS - if (options->afs_token_passing == -1) - options->afs_token_passing = 1; -#endif if (options->password_authentication == -1) options->password_authentication = 1; if (options->kbd_interactive_authentication == -1) @@ -909,12 +938,14 @@ fill_default_options(Options * options) options->strict_host_key_checking = 2; /* 2 is default */ if (options->compression == -1) options->compression = 0; - if (options->keepalives == -1) - options->keepalives = 1; + if (options->tcp_keep_alive == -1) + options->tcp_keep_alive = 1; if (options->compression_level == -1) options->compression_level = 6; if (options->port == -1) options->port = 0; /* Filled in ssh_connect. */ + if (options->address_family == -1) + options->address_family = AF_UNSPEC; if (options->connection_attempts == -1) options->connection_attempts = 1; if (options->number_of_password_prompts == -1) @@ -965,6 +996,18 @@ fill_default_options(Options * options) clear_forwardings(options); if (options->no_host_authentication_for_localhost == - 1) options->no_host_authentication_for_localhost = 0; + if (options->identities_only == -1) + options->identities_only = 0; + if (options->enable_ssh_keysign == -1) + options->enable_ssh_keysign = 0; + if (options->rekey_limit == -1) + options->rekey_limit = 0; + if (options->verify_host_key_dns == -1) + options->verify_host_key_dns = 0; + if (options->server_alive_interval == -1) + options->server_alive_interval = 0; + if (options->server_alive_count_max == -1) + options->server_alive_count_max = 3; /* options->proxy_command should not be set by default */ /* options->user will be set in the main program if appropriate */ /* options->hostname will be set in the main program if appropriate */