X-Git-Url: http://andersk.mit.edu/gitweb/gssapi-openssh.git/blobdiff_plain/f44d3b99ca90eb906472b64401dd9cf8d2c709af..9f2c8cb950fea61c599edeb9721aca66f4bd61f6:/openssh/ssh-gss.h diff --git a/openssh/ssh-gss.h b/openssh/ssh-gss.h index 31e025e..8ff6869 100644 --- a/openssh/ssh-gss.h +++ b/openssh/ssh-gss.h @@ -1,5 +1,6 @@ +/* $OpenBSD: ssh-gss.h,v 1.10 2007/06/12 08:20:00 djm Exp $ */ /* - * Copyright (c) 2001,2002 Simon Wilkinson. All rights reserved. + * Copyright (c) 2001-2009 Simon Wilkinson. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -27,15 +28,20 @@ #ifdef GSSAPI -#include "kex.h" -#include "buffer.h" - +#ifdef HAVE_GSSAPI_H #include +#elif defined(HAVE_GSSAPI_GSSAPI_H) +#include +#endif #ifndef MECHGLUE #ifdef KRB5 -#ifndef HEIMDAL -#include +# ifndef HEIMDAL +# ifdef HAVE_GSSAPI_GENERIC_H +# include +# elif defined(HAVE_GSSAPI_GSSAPI_GENERIC_H) +# include +# endif /* MIT Kerberos doesn't seem to define GSS_NT_HOSTBASED_SERVICE */ @@ -46,119 +52,125 @@ #endif /* KRB5 */ #endif /* !MECHGLUE */ -/* draft-ietf-secsh-gsskeyex-03 */ -#define SSH2_MSG_KEXGSS_INIT 30 -#define SSH2_MSG_KEXGSS_CONTINUE 31 -#define SSH2_MSG_KEXGSS_COMPLETE 32 -#define SSH2_MSG_KEXGSS_HOSTKEY 33 -#define SSH2_MSG_KEXGSS_ERROR 34 -#define SSH2_MSG_USERAUTH_GSSAPI_RESPONSE 60 -#define SSH2_MSG_USERAUTH_GSSAPI_TOKEN 61 -#define SSH2_MSG_USERAUTH_GSSAPI_EXCHANGE_COMPLETE 63 -#define SSH2_MSG_USERAUTH_GSSAPI_ERROR 64 +/* draft-ietf-secsh-gsskeyex-06 */ +#define SSH2_MSG_USERAUTH_GSSAPI_RESPONSE 60 +#define SSH2_MSG_USERAUTH_GSSAPI_TOKEN 61 +#define SSH2_MSG_USERAUTH_GSSAPI_EXCHANGE_COMPLETE 63 +#define SSH2_MSG_USERAUTH_GSSAPI_ERROR 64 +#define SSH2_MSG_USERAUTH_GSSAPI_ERRTOK 65 +#define SSH2_MSG_USERAUTH_GSSAPI_MIC 66 + +#define SSH_GSS_OIDTYPE 0x06 + +#define SSH2_MSG_KEXGSS_INIT 30 +#define SSH2_MSG_KEXGSS_CONTINUE 31 +#define SSH2_MSG_KEXGSS_COMPLETE 32 +#define SSH2_MSG_KEXGSS_HOSTKEY 33 +#define SSH2_MSG_KEXGSS_ERROR 34 +#define SSH2_MSG_KEXGSS_GROUPREQ 40 +#define SSH2_MSG_KEXGSS_GROUP 41 +#define KEX_GSS_GRP1_SHA1_ID "gss-group1-sha1-" +#define KEX_GSS_GRP14_SHA1_ID "gss-group14-sha1-" +#define KEX_GSS_GEX_SHA1_ID "gss-gex-sha1-" -#define KEX_GSS_SHA1 "gss-group1-sha1-" +typedef struct { + char *filename; + char *envvar; + char *envval; + struct passwd *owner; + void *data; +} ssh_gssapi_ccache; -enum ssh_gss_id { -#ifdef KRB5 - GSS_KERBEROS, -#endif -#ifdef GSI - GSS_GSI, -#endif /* GSI */ - GSS_LAST_ENTRY -}; - -typedef struct ssh_gss_mech_struct { - char *enc_name; - char *name; - gss_OID_desc oid; +typedef struct { + gss_buffer_desc displayname; + gss_buffer_desc exportedname; + gss_cred_id_t creds; + gss_name_t name; + struct ssh_gssapi_mech_struct *mech; + ssh_gssapi_ccache store; + gss_ctx_id_t context; + int used; + int updated; +} ssh_gssapi_client; + +typedef struct ssh_gssapi_mech_struct { + char *enc_name; + char *name; + gss_OID_desc oid; + int (*dochild) (ssh_gssapi_client *); + int (*userok) (ssh_gssapi_client *, char *); + int (*localname) (ssh_gssapi_client *, char **); + void (*storecreds) (ssh_gssapi_client *); + int (*updatecreds) (ssh_gssapi_ccache *, ssh_gssapi_client *); } ssh_gssapi_mech; typedef struct { - OM_uint32 status; /* both */ + OM_uint32 major; /* both */ + OM_uint32 minor; /* both */ gss_ctx_id_t context; /* both */ gss_name_t name; /* both */ gss_OID oid; /* both */ gss_cred_id_t creds; /* server */ gss_name_t client; /* server */ - gss_cred_id_t client_creds; /* server */ + gss_cred_id_t client_creds; /* both */ } Gssctxt; -extern ssh_gssapi_mech supported_mechs[]; -extern gss_buffer_desc gssapi_client_name; -extern gss_cred_id_t gssapi_client_creds; -extern enum ssh_gss_id gssapi_client_type; - -char *ssh_gssapi_mechanisms(int server, char *host); -gss_OID ssh_gssapi_id_kex(Gssctxt *ctx, char *name); -void ssh_gssapi_set_oid_data(Gssctxt *ctx, void *data, size_t len); -void ssh_gssapi_set_oid(Gssctxt *ctx, gss_OID oid); -void ssh_gssapi_supported_oids(gss_OID_set *oidset); -enum ssh_gss_id ssh_gssapi_get_ctype(Gssctxt *ctxt); - -OM_uint32 ssh_gssapi_import_name(Gssctxt *ctx, const char *host); -OM_uint32 ssh_gssapi_acquire_cred(Gssctxt *ctx); -OM_uint32 ssh_gssapi_init_ctx(Gssctxt *ctx, int deleg_creds, - gss_buffer_desc *recv_tok, - gss_buffer_desc *send_tok, OM_uint32 *flags); -OM_uint32 ssh_gssapi_accept_ctx(Gssctxt *ctx, - gss_buffer_desc *recv_tok, - gss_buffer_desc *send_tok, - OM_uint32 *flags); -OM_uint32 ssh_gssapi_getclient(Gssctxt *ctx, - enum ssh_gss_id *type, - gss_buffer_desc *name, - gss_cred_id_t *creds); -void ssh_gssapi_error(gss_OID mech, - OM_uint32 major_status, OM_uint32 minor_status); -void ssh_gssapi_send_error(gss_OID mech, - OM_uint32 major_status,OM_uint32 minor_status); -void ssh_gssapi_build_ctx(Gssctxt **ctx); -void ssh_gssapi_delete_ctx(Gssctxt **ctx); -OM_uint32 ssh_gssapi_client_ctx(Gssctxt **ctx,gss_OID oid,char *host); -OM_uint32 ssh_gssapi_server_ctx(Gssctxt **ctx,gss_OID oid); - -/* In the client */ -void ssh_gssapi_client(Kex *kex, char *host, struct sockaddr *hostaddr, - Buffer *client_kexinit, Buffer *server_kexinit); +extern ssh_gssapi_mech *supported_mechs[]; +extern Gssctxt *gss_kex_context; + +int ssh_gssapi_check_oid(Gssctxt *, void *, size_t); +void ssh_gssapi_set_oid_data(Gssctxt *, void *, size_t); +void ssh_gssapi_set_oid(Gssctxt *, gss_OID); +void ssh_gssapi_supported_oids(gss_OID_set *); +ssh_gssapi_mech *ssh_gssapi_get_ctype(Gssctxt *); + +OM_uint32 ssh_gssapi_import_name(Gssctxt *, const char *); +OM_uint32 ssh_gssapi_init_ctx(Gssctxt *, int, + gss_buffer_desc *, gss_buffer_desc *, OM_uint32 *); +OM_uint32 ssh_gssapi_accept_ctx(Gssctxt *, + gss_buffer_desc *, gss_buffer_desc *, OM_uint32 *); +OM_uint32 ssh_gssapi_getclient(Gssctxt *, ssh_gssapi_client *); +void ssh_gssapi_error(Gssctxt *); +char *ssh_gssapi_last_error(Gssctxt *, OM_uint32 *, OM_uint32 *); +void ssh_gssapi_build_ctx(Gssctxt **); +void ssh_gssapi_delete_ctx(Gssctxt **); +OM_uint32 ssh_gssapi_sign(Gssctxt *, gss_buffer_t, gss_buffer_t); +void ssh_gssapi_buildmic(Buffer *, const char *, const char *, const char *); +int ssh_gssapi_check_mechanism(Gssctxt **, gss_OID, const char *, const char *); +OM_uint32 ssh_gssapi_client_identity(Gssctxt *, const char *); +int ssh_gssapi_credentials_updated(Gssctxt *); + +int ssh_gssapi_localname(char **name); +void ssh_gssapi_rekey_creds(); /* In the server */ -int ssh_gssapi_userok(char *name); -int ssh_gssapi_localname(char **lname); -void ssh_gssapi_server(Kex *kex, Buffer *client_kexinit, - Buffer *server_kexinit); - -OM_uint32 ssh_gssapi_sign(Gssctxt *ctx, gss_buffer_desc *buffer, - gss_buffer_desc *hash); - -void ssh_gssapi_do_child(char ***envp, u_int *envsizep); -void ssh_gssapi_cleanup_creds(void *ignored); -void ssh_gssapi_storecreds(); -void ssh_gssapi_clean_env(); - -#ifdef GSI -int gsi_gridmap(char *subject_name, char **mapped_name); -#ifdef _HAVE_GSI_EXTENDED_GSSAPI -#define HAVE_GSSAPI_EXT -#endif -#endif +typedef int ssh_gssapi_check_fn(Gssctxt **, gss_OID, const char *, + const char *); +char *ssh_gssapi_client_mechanisms(const char *, const char *); +char *ssh_gssapi_kex_mechs(gss_OID_set, ssh_gssapi_check_fn *, const char *, + const char *); +gss_OID ssh_gssapi_id_kex(Gssctxt *, char *, int); +int ssh_gssapi_server_check_mech(Gssctxt **,gss_OID, const char *, + const char *); +OM_uint32 ssh_gssapi_server_ctx(Gssctxt **, gss_OID); +int ssh_gssapi_userok(char *name, struct passwd *); +OM_uint32 ssh_gssapi_checkmic(Gssctxt *, gss_buffer_t, gss_buffer_t); +void ssh_gssapi_do_child(char ***, u_int *); +void ssh_gssapi_cleanup_creds(void); +void ssh_gssapi_storecreds(void); #ifdef MECHGLUE gss_cred_id_t __gss_get_mechanism_cred (gss_cred_id_t, /* union_cred */ gss_OID /* mech_type */ ); -#ifndef _HAVE_GSI_EXTENDED_GSSAPI -#define HAVE_GSSAPI_EXT -OM_uint32 gss_export_cred - (OM_uint32 *, /* minor_status */ - const gss_cred_id_t,/* cred_handle */ - const gss_OID, /* desired mech */ - OM_uint32, /* option req */ - gss_buffer_t); /* output buffer */ -#endif #endif + +char *ssh_gssapi_server_mechanisms(void); +int ssh_gssapi_oid_table_ok(); + +int ssh_gssapi_update_creds(ssh_gssapi_ccache *store); +void ssh_gssapi_get_client_info(char **userdn, char **mech); #endif /* GSSAPI */ #endif /* _SSH_GSS_H */