On Sun, Feb 17, 2013 at 01:46:29AM +1100, Darren Tucker wrote: > OK that's not intended behaviour. I'll look at it tomorrow and either fix > it or revert it.
The problem was I didn't distinguish the default-provided IdentityFiles. Please try this. djm: ok? Index: readconf.c =================================================================== RCS file: /cvs/src/usr.bin/ssh/readconf.c,v retrieving revision 1.194 diff -u -p -r1.194 readconf.c --- readconf.c 23 Sep 2011 07:45:05 -0000 1.194 +++ readconf.c 17 Feb 2013 03:14:14 -0000 @@ -322,6 +322,26 @@ clear_forwardings(Options *options) options->tun_open = SSH_TUNMODE_NO; } +void +add_identity_file(Options *options, const char *dir, const char *filename, + int userprovided) +{ + char *path; + + if (options->num_identity_files >= SSH_MAX_IDENTITY_FILES) + fatal("Too many identity files specified (max %d)", + SSH_MAX_IDENTITY_FILES); + + if (dir == NULL) /* no dir, filename is absolute */ + path = xstrdup(filename); + else + (void)xasprintf(&path, "%.100s%.100s", dir, filename); + + options->identity_file_userprovided[options->num_identity_files] = + userprovided; + options->identity_files[options->num_identity_files++] = path; +} + /* * Returns the number of the token pointed to by cp or oBadOption. */ @@ -582,9 +602,7 @@ parse_yesnoask: if (*intptr >= SSH_MAX_IDENTITY_FILES) fatal("%.200s line %d: Too many identity files specified (max %d).", filename, linenum, SSH_MAX_IDENTITY_FILES); - charptr = &options->identity_files[*intptr]; - *charptr = xstrdup(arg); - *intptr = *intptr + 1; + add_identity_file(options, NULL, arg, 1); } break; @@ -1276,30 +1294,16 @@ fill_default_options(Options * options) options->protocol = SSH_PROTO_2; if (options->num_identity_files == 0) { if (options->protocol & SSH_PROTO_1) { - len = 2 + strlen(_PATH_SSH_CLIENT_IDENTITY) + 1; - options->identity_files[options->num_identity_files] = - xmalloc(len); - snprintf(options->identity_files[options->num_identity_files++], - len, "~/%.100s", _PATH_SSH_CLIENT_IDENTITY); + add_identity_file(options, "~/", + _PATH_SSH_CLIENT_IDENTITY, 0); } if (options->protocol & SSH_PROTO_2) { - len = 2 + strlen(_PATH_SSH_CLIENT_ID_RSA) + 1; - options->identity_files[options->num_identity_files] = - xmalloc(len); - snprintf(options->identity_files[options->num_identity_files++], - len, "~/%.100s", _PATH_SSH_CLIENT_ID_RSA); - - len = 2 + strlen(_PATH_SSH_CLIENT_ID_DSA) + 1; - options->identity_files[options->num_identity_files] = - xmalloc(len); - snprintf(options->identity_files[options->num_identity_files++], - len, "~/%.100s", _PATH_SSH_CLIENT_ID_DSA); - - len = 2 + strlen(_PATH_SSH_CLIENT_ID_ECDSA) + 1; - options->identity_files[options->num_identity_files] = - xmalloc(len); - snprintf(options->identity_files[options->num_identity_files++], - len, "~/%.100s", _PATH_SSH_CLIENT_ID_ECDSA); + add_identity_file(options, "~/", + _PATH_SSH_CLIENT_ID_RSA, 0); + add_identity_file(options, "~/", + _PATH_SSH_CLIENT_ID_DSA, 0); + add_identity_file(options, "~/", + _PATH_SSH_CLIENT_ID_ECDSA, 0); } } if (options->escape_char == -1) Index: readconf.h =================================================================== RCS file: /cvs/src/usr.bin/ssh/readconf.h,v retrieving revision 1.91 diff -u -p -r1.91 readconf.h --- readconf.h 23 Sep 2011 07:45:05 -0000 1.91 +++ readconf.h 17 Feb 2013 03:14:14 -0000 @@ -96,6 +96,7 @@ typedef struct { int num_identity_files; /* Number of files for RSA/DSA identities. */ char *identity_files[SSH_MAX_IDENTITY_FILES]; + int identity_file_userprovided[SSH_MAX_IDENTITY_FILES]; Key *identity_keys[SSH_MAX_IDENTITY_FILES]; /* Local TCP/IP forward requests. */ @@ -158,5 +159,6 @@ process_config_line(Options *, const cha void add_local_forward(Options *, const Forward *); void add_remote_forward(Options *, const Forward *); +void add_identity_file(Options *, const char *, const char *, int); #endif /* READCONF_H */ Index: ssh.c =================================================================== RCS file: /cvs/src/usr.bin/ssh/ssh.c,v retrieving revision 1.370 diff -u -p -r1.370 ssh.c --- ssh.c 6 Jul 2012 01:47:38 -0000 1.370 +++ ssh.c 17 Feb 2013 03:14:14 -0000 @@ -376,12 +376,7 @@ main(int ac, char **av) strerror(errno)); break; } - if (options.num_identity_files >= - SSH_MAX_IDENTITY_FILES) - fatal("Too many identity files specified " - "(max %d)", SSH_MAX_IDENTITY_FILES); - options.identity_files[options.num_identity_files++] = - xstrdup(optarg); + add_identity_file(&options, NULL, optarg, 1); break; case 'I': #ifdef ENABLE_PKCS11 Index: sshconnect2.c =================================================================== RCS file: /cvs/src/usr.bin/ssh/sshconnect2.c,v retrieving revision 1.191 diff -u -p -r1.191 sshconnect2.c --- sshconnect2.c 15 Feb 2013 00:21:01 -0000 1.191 +++ sshconnect2.c 17 Feb 2013 03:14:14 -0000 @@ -1378,7 +1378,7 @@ pubkey_prepare(Authctxt *authctxt) id = xcalloc(1, sizeof(*id)); id->key = key; id->filename = xstrdup(options.identity_files[i]); - id->userprovided = 1; + id->userprovided = options.identity_file_userprovided[i]; TAILQ_INSERT_TAIL(&files, id, next); } /* Prefer PKCS11 keys that are explicitly listed */ -- Darren Tucker (dtucker at zip.com.au) GPG key 8FF4FA69 / D9A3 86E9 7EEE AF4B B2D4 37C9 C982 80C7 8FF4 FA69 Good judgement comes with experience. Unfortunately, the experience usually comes from bad judgement.