version 1.10, 2002/11/21 23:03:51 |
version 1.10.2.2, 2004/03/04 18:18:15 |
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{ |
{ |
Authctxt *authctxt = (Authctxt *)context; |
Authctxt *authctxt = (Authctxt *)context; |
krb5_error_code problem; |
krb5_error_code problem; |
static int cleanup_registered = 0; |
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if (authctxt->krb5_ctx == NULL) { |
if (authctxt->krb5_ctx == NULL) { |
problem = krb5_init_context(&authctxt->krb5_ctx); |
problem = krb5_init_context(&authctxt->krb5_ctx); |
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return (problem); |
return (problem); |
krb5_init_ets(authctxt->krb5_ctx); |
krb5_init_ets(authctxt->krb5_ctx); |
} |
} |
if (!cleanup_registered) { |
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fatal_add_cleanup(krb5_cleanup_proc, authctxt); |
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cleanup_registered = 1; |
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} |
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return (0); |
return (0); |
} |
} |
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/* |
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* Try krb5 authentication. server_user is passed for logging purposes |
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* only, in auth is received ticket, in client is returned principal |
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* from the ticket |
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*/ |
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int |
int |
auth_krb5(Authctxt *authctxt, krb5_data *auth, char **client, krb5_data *reply) |
auth_krb5_password(Authctxt *authctxt, const char *password) |
{ |
{ |
krb5_error_code problem; |
krb5_error_code problem; |
krb5_principal server; |
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krb5_ticket *ticket; |
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int fd, ret; |
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ret = 0; |
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server = NULL; |
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ticket = NULL; |
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reply->length = 0; |
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problem = krb5_init(authctxt); |
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if (problem) |
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goto err; |
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problem = krb5_auth_con_init(authctxt->krb5_ctx, |
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&authctxt->krb5_auth_ctx); |
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if (problem) |
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goto err; |
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fd = packet_get_connection_in(); |
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problem = krb5_auth_con_setaddrs_from_fd(authctxt->krb5_ctx, |
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authctxt->krb5_auth_ctx, &fd); |
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if (problem) |
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goto err; |
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problem = krb5_sname_to_principal(authctxt->krb5_ctx, NULL, NULL, |
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KRB5_NT_SRV_HST, &server); |
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if (problem) |
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goto err; |
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problem = krb5_rd_req(authctxt->krb5_ctx, &authctxt->krb5_auth_ctx, |
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auth, server, NULL, NULL, &ticket); |
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if (problem) |
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goto err; |
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problem = krb5_copy_principal(authctxt->krb5_ctx, ticket->client, |
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&authctxt->krb5_user); |
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if (problem) |
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goto err; |
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/* if client wants mutual auth */ |
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problem = krb5_mk_rep(authctxt->krb5_ctx, authctxt->krb5_auth_ctx, |
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reply); |
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if (problem) |
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goto err; |
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/* Check .k5login authorization now. */ |
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if (!krb5_kuserok(authctxt->krb5_ctx, authctxt->krb5_user, |
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authctxt->pw->pw_name)) |
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goto err; |
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if (client) |
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krb5_unparse_name(authctxt->krb5_ctx, authctxt->krb5_user, |
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client); |
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ret = 1; |
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err: |
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if (server) |
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krb5_free_principal(authctxt->krb5_ctx, server); |
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if (ticket) |
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krb5_free_ticket(authctxt->krb5_ctx, ticket); |
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if (!ret && reply->length) { |
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xfree(reply->data); |
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memset(reply, 0, sizeof(*reply)); |
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} |
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if (problem) { |
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if (authctxt->krb5_ctx != NULL) |
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debug("Kerberos v5 authentication failed: %s", |
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krb5_get_err_text(authctxt->krb5_ctx, problem)); |
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else |
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debug("Kerberos v5 authentication failed: %d", |
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problem); |
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} |
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return (ret); |
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} |
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int |
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auth_krb5_tgt(Authctxt *authctxt, krb5_data *tgt) |
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{ |
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krb5_error_code problem; |
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krb5_ccache ccache = NULL; |
krb5_ccache ccache = NULL; |
char *pname; |
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if (authctxt->pw == NULL || authctxt->krb5_user == NULL) |
if (!authctxt->valid) |
return (0); |
return (0); |
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temporarily_use_uid(authctxt->pw); |
temporarily_use_uid(authctxt->pw); |
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problem = krb5_cc_gen_new(authctxt->krb5_ctx, &krb5_fcc_ops, &ccache); |
problem = krb5_init(authctxt); |
if (problem) |
if (problem) |
goto fail; |
goto out; |
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problem = krb5_cc_initialize(authctxt->krb5_ctx, ccache, |
problem = krb5_parse_name(authctxt->krb5_ctx, authctxt->pw->pw_name, |
authctxt->krb5_user); |
&authctxt->krb5_user); |
if (problem) |
if (problem) |
goto fail; |
goto out; |
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problem = krb5_rd_cred2(authctxt->krb5_ctx, authctxt->krb5_auth_ctx, |
problem = krb5_cc_gen_new(authctxt->krb5_ctx, &krb5_mcc_ops, &ccache); |
ccache, tgt); |
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if (problem) |
if (problem) |
goto fail; |
goto out; |
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authctxt->krb5_fwd_ccache = ccache; |
problem = krb5_cc_initialize(authctxt->krb5_ctx, ccache, |
ccache = NULL; |
authctxt->krb5_user); |
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authctxt->krb5_ticket_file = (char *)krb5_cc_get_name(authctxt->krb5_ctx, authctxt->krb5_fwd_ccache); |
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problem = krb5_unparse_name(authctxt->krb5_ctx, authctxt->krb5_user, |
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&pname); |
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if (problem) |
if (problem) |
goto fail; |
goto out; |
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debug("Kerberos v5 TGT accepted (%s)", pname); |
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restore_uid(); |
restore_uid(); |
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return (1); |
problem = krb5_verify_user(authctxt->krb5_ctx, authctxt->krb5_user, |
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ccache, password, 1, NULL); |
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fail: |
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if (problem) |
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debug("Kerberos v5 TGT passing failed: %s", |
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krb5_get_err_text(authctxt->krb5_ctx, problem)); |
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if (ccache) |
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krb5_cc_destroy(authctxt->krb5_ctx, ccache); |
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restore_uid(); |
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return (0); |
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} |
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int |
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auth_krb5_password(Authctxt *authctxt, const char *password) |
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{ |
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krb5_error_code problem; |
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if (authctxt->pw == NULL) |
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return (0); |
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temporarily_use_uid(authctxt->pw); |
temporarily_use_uid(authctxt->pw); |
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problem = krb5_init(authctxt); |
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if (problem) |
if (problem) |
goto out; |
goto out; |
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problem = krb5_parse_name(authctxt->krb5_ctx, authctxt->pw->pw_name, |
problem = krb5_cc_gen_new(authctxt->krb5_ctx, &krb5_fcc_ops, |
&authctxt->krb5_user); |
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if (problem) |
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goto out; |
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problem = krb5_cc_gen_new(authctxt->krb5_ctx, &krb5_mcc_ops, |
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&authctxt->krb5_fwd_ccache); |
&authctxt->krb5_fwd_ccache); |
if (problem) |
if (problem) |
goto out; |
goto out; |
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problem = krb5_cc_initialize(authctxt->krb5_ctx, |
problem = krb5_cc_copy_cache(authctxt->krb5_ctx, ccache, |
authctxt->krb5_fwd_ccache, authctxt->krb5_user); |
authctxt->krb5_fwd_ccache); |
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krb5_cc_destroy(authctxt->krb5_ctx, ccache); |
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ccache = NULL; |
if (problem) |
if (problem) |
goto out; |
goto out; |
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restore_uid(); |
authctxt->krb5_ticket_file = (char *)krb5_cc_get_name(authctxt->krb5_ctx, |
problem = krb5_verify_user(authctxt->krb5_ctx, authctxt->krb5_user, |
authctxt->krb5_fwd_ccache); |
authctxt->krb5_fwd_ccache, password, 1, NULL); |
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temporarily_use_uid(authctxt->pw); |
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if (problem) |
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goto out; |
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authctxt->krb5_ticket_file = (char *)krb5_cc_get_name(authctxt->krb5_ctx, authctxt->krb5_fwd_ccache); |
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out: |
out: |
restore_uid(); |
restore_uid(); |
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if (problem) { |
if (problem) { |
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if (ccache) |
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krb5_cc_destroy(authctxt->krb5_ctx, ccache); |
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if (authctxt->krb5_ctx != NULL) |
if (authctxt->krb5_ctx != NULL) |
debug("Kerberos password authentication failed: %s", |
debug("Kerberos password authentication failed: %s", |
krb5_get_err_text(authctxt->krb5_ctx, problem)); |
krb5_get_err_text(authctxt->krb5_ctx, problem)); |
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} |
} |
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void |
void |
krb5_cleanup_proc(void *context) |
krb5_cleanup_proc(Authctxt *authctxt) |
{ |
{ |
Authctxt *authctxt = (Authctxt *)context; |
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debug("krb5_cleanup_proc called"); |
debug("krb5_cleanup_proc called"); |
if (authctxt->krb5_fwd_ccache) { |
if (authctxt->krb5_fwd_ccache) { |
krb5_cc_destroy(authctxt->krb5_ctx, authctxt->krb5_fwd_ccache); |
krb5_cc_destroy(authctxt->krb5_ctx, authctxt->krb5_fwd_ccache); |
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if (authctxt->krb5_user) { |
if (authctxt->krb5_user) { |
krb5_free_principal(authctxt->krb5_ctx, authctxt->krb5_user); |
krb5_free_principal(authctxt->krb5_ctx, authctxt->krb5_user); |
authctxt->krb5_user = NULL; |
authctxt->krb5_user = NULL; |
} |
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if (authctxt->krb5_auth_ctx) { |
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krb5_auth_con_free(authctxt->krb5_ctx, |
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authctxt->krb5_auth_ctx); |
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authctxt->krb5_auth_ctx = NULL; |
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} |
} |
if (authctxt->krb5_ctx) { |
if (authctxt->krb5_ctx) { |
krb5_free_context(authctxt->krb5_ctx); |
krb5_free_context(authctxt->krb5_ctx); |