diff --git a/auth-krb5.c b/auth-krb5.c index 2b02a04..19b9364 100644 --- a/auth-krb5.c +++ b/auth-krb5.c @@ -375,5 +375,21 @@ cleanup: return (krb5_cc_resolve(ctx, ccname, ccache)); } } + +/* + * Reads k5login_directory option from the krb5.conf + */ +krb5_error_code +ssh_krb5_get_k5login_directory(krb5_context ctx, char **k5login_directory) { + profile_t p; + int ret = 0; + + ret = krb5_get_profile(ctx, &p); + if (ret) + return ret; + + return profile_get_string(p, "libdefaults", "k5login_directory", NULL, NULL, + k5login_directory); +} #endif /* !HEIMDAL */ #endif /* KRB5 */ diff --git a/auth.h b/auth.h index f9d191c..c432d2f 100644 --- a/auth.h +++ b/auth.h @@ -222,6 +222,8 @@ int sys_auth_passwd(Authctxt *, const char *); #if defined(KRB5) && !defined(HEIMDAL) krb5_error_code ssh_krb5_cc_new_unique(krb5_context, krb5_ccache *, int *); +krb5_error_code ssh_krb5_get_k5login_directory(krb5_context ctx, + char **k5login_directory); #endif #endif /* AUTH_H */ diff --git a/gss-serv-krb5.c b/gss-serv-krb5.c index a7c0c5f..df8cc9a 100644 --- a/gss-serv-krb5.c +++ b/gss-serv-krb5.c @@ -244,8 +244,27 @@ ssh_gssapi_k5login_exists() { char file[MAXPATHLEN]; struct passwd *pw = the_authctxt->pw; + char *k5login_directory = NULL; + int ret = 0; + + ret = ssh_krb5_get_k5login_directory(krb_context, &k5login_directory); + debug3("%s: k5login_directory = %s (rv=%d)", __func__, k5login_directory, ret); + if (k5login_directory == NULL || ret != 0) { + /* If not set, the library will look for k5login + * files in the user's home directory, with the filename .k5login. + */ + snprintf(file, sizeof(file), "%s/.k5login", pw->pw_dir); + } else { + /* If set, the library will look for a local user's k5login file + * within the named directory, with a filename corresponding to the + * local username. + */ + snprintf(file, sizeof(file), "%s%s%s", k5login_directory, + k5login_directory[strlen(k5login_directory)-1] != '/' ? "/" : "", + pw->pw_name); + } + debug("%s: Checking existence of file %s", __func__, file); - snprintf(file, sizeof(file), "%s/.k5login", pw->pw_dir); return access(file, F_OK) == 0; } diff --git a/sshd.8 b/sshd.8 index 5c4f15b..135e290 100644 --- a/sshd.8 +++ b/sshd.8 @@ -806,6 +806,10 @@ rlogin/rsh. These files enforce GSSAPI/Kerberos authentication access control. Further details are described in .Xr ksu 1 . +The location of the k5login file depends on the configuration option +.Cm k5login_directory +in the +.Xr krb5.conf 5 . .Pp .It Pa ~/.ssh/ This directory is the default location for all user-specific configuration