/*
- * "$Id: auth.c 6947 2007-09-12 21:09:49Z mike $"
+ * "$Id: auth.c 7830 2008-08-04 20:38:50Z mike $"
*
* Authorization routines for the Common UNIX Printing System (CUPS).
*
- * Copyright 2007 by Apple Inc.
+ * Copyright 2007-2009 by Apple Inc.
* Copyright 1997-2007 by Easy Software Products, all rights reserved.
*
* This file contains Kerberos support code, copyright 2006 by
* cupsdAddName() - Add a name to a location...
* cupsdAllowHost() - Add a host name that is allowed to access the
* location.
- * cupsdAllowIP() - Add an IP address or network that is allowed
- * to access the location.
+ * cupsdAllowIP() - Add an IP address or network that is allowed to
+ * access the location.
* cupsdAuthorize() - Validate any authorization credentials.
+ * cupsdCheckAccess() - Check whether the given address is allowed to
+ * access a location.
* cupsdCheckAuth() - Check authorization masks.
* cupsdCheckGroup() - Check for a user's group membership.
+ * cupsdCopyKrb5Creds() - Get a copy of the Kerberos credentials.
* cupsdCopyLocation() - Make a copy of a location...
* cupsdDeleteAllLocations() - Free all memory used for location
* authorization.
* cupsdIsAuthorized() - Check to see if the user is authorized...
* add_allow() - Add an allow mask to the location.
* add_deny() - Add a deny mask to the location.
+ * check_authref() - Check if an authorization services reference
+ * has the supplied right.
* compare_locations() - Compare two locations.
* cups_crypt() - Encrypt the password using the DES or MD5
* algorithms, as needed.
- * get_gss_creds() - Obtain GSS credentials.
* get_md5_password() - Get an MD5 password.
* pam_func() - PAM conversation function.
* to64() - Base64-encode an integer value...
- * check_authref() - Check an authorization services reference.
*/
/*
typedef struct ucred cupsd_ucred_t;
# define CUPSD_UCRED_UID(c) (c).uid
#endif /* HAVE_SYS_UCRED_H */
+#ifdef HAVE_KRB5_IPC_CLIENT_SET_TARGET_UID
+/* Not in public headers... */
+extern void krb5_ipc_client_set_target_uid(uid_t);
+extern void krb5_ipc_client_clear_target(void);
+#endif /* HAVE_KRB5_IPC_CLIENT_SET_TARGET_UID */
/*
#if !HAVE_LIBPAM && !defined(HAVE_USERSEC_H)
static char *cups_crypt(const char *pw, const char *salt);
#endif /* !HAVE_LIBPAM && !HAVE_USERSEC_H */
-#ifdef HAVE_GSSAPI
-static gss_cred_id_t get_gss_creds(const char *service_name);
-#endif /* HAVE_GSSAPI */
static char *get_md5_password(const char *username,
const char *group, char passwd[33]);
#if HAVE_LIBPAM
* Initialize the record and copy the name over...
*/
- temp->location = strdup(location);
- temp->length = strlen(temp->location);
+ if ((temp->location = strdup(location)) == NULL)
+ {
+ free(temp);
+ return (NULL);
+ }
+
+ temp->length = strlen(temp->location);
cupsArrayAdd(Locations, temp);
* Allow *interface*...
*/
- temp->type = AUTH_INTERFACE;
+ temp->type = CUPSD_AUTH_INTERFACE;
temp->mask.name.name = strdup("*");
temp->mask.name.length = 1;
}
*ifptr = '\0';
}
- temp->type = AUTH_INTERFACE;
+ temp->type = CUPSD_AUTH_INTERFACE;
temp->mask.name.name = strdup(ifname);
temp->mask.name.length = ifptr - ifname;
}
* Allow name...
*/
- temp->type = AUTH_NAME;
+ temp->type = CUPSD_AUTH_NAME;
temp->mask.name.name = strdup(name);
temp->mask.name.length = strlen(name);
}
*/
void
-cupsdAllowIP(cupsd_location_t *loc, /* I - Location to add to */
- unsigned address[4], /* I - IP address to add */
- unsigned netmask[4]) /* I - Netmask of address */
+cupsdAllowIP(
+ cupsd_location_t *loc, /* I - Location to add to */
+ const unsigned address[4], /* I - IP address to add */
+ const unsigned netmask[4]) /* I - Netmask of address */
{
cupsd_authmask_t *temp; /* New host/domain mask */
if ((temp = add_allow(loc)) == NULL)
return;
- temp->type = AUTH_IP;
+ temp->type = CUPSD_AUTH_IP;
memcpy(temp->mask.ip.address, address, sizeof(temp->mask.ip.address));
memcpy(temp->mask.ip.netmask, netmask, sizeof(temp->mask.ip.netmask));
}
char *ptr, /* Pointer into string */
username[256], /* Username string */
password[33]; /* Password string */
- const char *localuser; /* Certificate username */
+ cupsd_cert_t *localuser; /* Certificate username */
char nonce[HTTP_MAX_VALUE], /* Nonce value from client */
md5[33], /* MD5 password */
basicmd5[33]; /* MD5 of Basic password */
*/
con->best = cupsdFindBest(con->uri, con->http.state);
+ con->type = CUPSD_AUTH_NONE;
cupsdLogMessage(CUPSD_LOG_DEBUG2,
"cupsdAuthorize: con->uri=\"%s\", con->best=%p(%s)",
con->uri, con->best, con->best ? con->best->location : "");
- if (con->best && con->best->type != AUTH_NONE)
+ if (con->best && con->best->type != CUPSD_AUTH_NONE)
{
- if (con->best->type == AUTH_DEFAULT)
+ if (con->best->type == CUPSD_AUTH_DEFAULT)
type = DefaultAuthType;
else
type = con->best->type;
}
#endif /* HAVE_AUTHORIZATION_H */
- if (type == AUTH_NONE)
- {
- /*
- * No authorization required, return early...
- */
-
- cupsdLogMessage(CUPSD_LOG_DEBUG,
- "cupsdAuthorize: No authentication required.");
- return;
- }
- else if (!*authorization)
+ if (!*authorization)
{
/*
* No authorization data provided, return early...
return;
}
- if ((status = AuthorizationCopyInfo(con->authref,
- kAuthorizationEnvironmentUsername,
- &authinfo)) != 0)
+ strlcpy(username, "_AUTHREF_", sizeof(username));
+
+ if (!AuthorizationCopyInfo(con->authref, kAuthorizationEnvironmentUsername,
+ &authinfo))
{
- cupsdLogMessage(CUPSD_LOG_ERROR,
- "AuthorizationCopyInfo returned %d (%s)",
- (int)status, cssmErrorString(status));
- return;
+ if (authinfo->count == 1 && authinfo->items[0].value &&
+ authinfo->items[0].valueLength >= 2)
+ strlcpy(username, authinfo->items[0].value, sizeof(username));
+
+ AuthorizationFreeItemSet(authinfo);
}
-
- if (authinfo->count == 1)
- strlcpy(username, authinfo->items[0].value, sizeof(username));
cupsdLogMessage(CUPSD_LOG_DEBUG,
- "cupsdAuthorize: Authorized as %s using AuthRef",
+ "cupsdAuthorize: Authorized as \"%s\" using AuthRef",
username);
-
- AuthorizationFreeItemSet(authinfo);
+ con->type = CUPSD_AUTH_BASIC;
}
#endif /* HAVE_AUTHORIZATION_H */
#if defined(SO_PEERCRED) && defined(AF_LOCAL)
peersize = sizeof(peercred);
+# ifdef __APPLE__
+ if (getsockopt(con->http.fd, 0, LOCAL_PEERCRED, &peercred, &peersize))
+# else
if (getsockopt(con->http.fd, SOL_SOCKET, SO_PEERCRED, &peercred, &peersize))
+# endif /* __APPLE__ */
{
cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to get peer credentials - %s",
strerror(errno));
cupsdLogMessage(CUPSD_LOG_DEBUG,
"cupsdAuthorize: Authorized as %s using PeerCred",
username);
+
+ con->type = CUPSD_AUTH_BASIC;
}
#endif /* SO_PEERCRED && AF_LOCAL */
else if (!strncmp(authorization, "Local", 5) &&
if ((localuser = cupsdFindCert(authorization)) != NULL)
{
- strlcpy(username, localuser, sizeof(username));
+ strlcpy(username, localuser->username, sizeof(username));
cupsdLogMessage(CUPSD_LOG_DEBUG,
"cupsdAuthorize: Authorized as %s using Local",
"found!");
return;
}
+
+#ifdef HAVE_GSSAPI
+ if (localuser->ccache)
+ con->type = CUPSD_AUTH_NEGOTIATE;
+ else
+#endif /* HAVE_GSSAPI */
+ con->type = CUPSD_AUTH_BASIC;
}
- else if (!strncmp(authorization, "Basic", 5) &&
- (type == AUTH_BASIC || type == AUTH_BASICDIGEST))
+ else if (!strncmp(authorization, "Basic", 5))
{
/*
* Get the Basic authentication data...
switch (type)
{
- case AUTH_BASIC :
+ default :
+ case CUPSD_AUTH_BASIC :
{
#if HAVE_LIBPAM
/*
if (pamerr != PAM_SUCCESS)
{
cupsdLogMessage(CUPSD_LOG_ERROR,
- "cupsdAuthorize: pam_start() returned %d (%s)!\n",
+ "cupsdAuthorize: pam_start() returned %d (%s)!",
pamerr, pam_strerror(pamh, pamerr));
- pam_end(pamh, 0);
return;
}
+# ifdef HAVE_PAM_SET_ITEM
+# ifdef PAM_RHOST
+ pamerr = pam_set_item(pamh, PAM_RHOST, con->http.hostname);
+ if (pamerr != PAM_SUCCESS)
+ cupsdLogMessage(CUPSD_LOG_WARN,
+ "cupsdAuthorize: pam_set_item(PAM_RHOST) "
+ "returned %d (%s)!", pamerr,
+ pam_strerror(pamh, pamerr));
+# endif /* PAM_RHOST */
+
+# ifdef PAM_TTY
+ pamerr = pam_set_item(pamh, PAM_TTY, "cups");
+ if (pamerr != PAM_SUCCESS)
+ cupsdLogMessage(CUPSD_LOG_WARN,
+ "cupsdAuthorize: pam_set_item(PAM_TTY) "
+ "returned %d (%s)!", pamerr,
+ pam_strerror(pamh, pamerr));
+# endif /* PAM_TTY */
+# endif /* HAVE_PAM_SET_ITEM */
+
pamerr = pam_authenticate(pamh, PAM_SILENT);
if (pamerr != PAM_SUCCESS)
{
cupsdLogMessage(CUPSD_LOG_ERROR,
"cupsdAuthorize: pam_authenticate() returned %d "
- "(%s)!\n",
+ "(%s)!",
pamerr, pam_strerror(pamh, pamerr));
pam_end(pamh, 0);
return;
}
+# ifdef HAVE_PAM_SETCRED
+ pamerr = pam_setcred(pamh, PAM_ESTABLISH_CRED | PAM_SILENT);
+ if (pamerr != PAM_SUCCESS)
+ cupsdLogMessage(CUPSD_LOG_WARN,
+ "cupsdAuthorize: pam_setcred() "
+ "returned %d (%s)!", pamerr,
+ pam_strerror(pamh, pamerr));
+# endif /* HAVE_PAM_SETCRED */
+
pamerr = pam_acct_mgmt(pamh, PAM_SILENT);
if (pamerr != PAM_SUCCESS)
{
cupsdLogMessage(CUPSD_LOG_ERROR,
"cupsdAuthorize: pam_acct_mgmt() returned %d "
- "(%s)!\n",
+ "(%s)!",
pamerr, pam_strerror(pamh, pamerr));
pam_end(pamh, 0);
return;
cupsdLogMessage(CUPSD_LOG_DEBUG,
- "cupsdAuthorize: AIX authenticate of username \"%s\"",
- username);
+ "cupsdAuthorize: AIX authenticate of username "
+ "\"%s\"", username);
reenter = 1;
if (authenticate(username, password, &reenter, &authmsg) != 0)
username);
break;
- case AUTH_BASICDIGEST :
+ case CUPSD_AUTH_BASICDIGEST :
/*
* Do Basic authentication with the Digest password file...
*/
username);
break;
}
+
+ con->type = type;
}
- else if (!strncmp(authorization, "Digest", 6) && type == AUTH_DIGEST)
+ else if (!strncmp(authorization, "Digest", 6))
{
/*
* Get the username, password, and nonce from the Digest attributes...
cupsdLogMessage(CUPSD_LOG_DEBUG,
"cupsdAuthorize: Authorized as %s using Digest",
username);
+
+ con->type = CUPSD_AUTH_DIGEST;
}
#ifdef HAVE_GSSAPI
else if (!strncmp(authorization, "Negotiate", 9))
{
int len; /* Length of authorization string */
- gss_cred_id_t server_creds; /* Server credentials */
gss_ctx_id_t context; /* Authorization context */
OM_uint32 major_status, /* Major status code */
minor_status; /* Minor status code */
output_token = GSS_C_EMPTY_BUFFER;
/* Output token for username */
gss_name_t client_name; /* Client name */
- unsigned int ret_flags; /* Credential flags */
# ifdef __APPLE__
return;
}
- /*
- * Get the server credentials...
- */
-
- if ((server_creds = get_gss_creds(GSSServiceName)) == NULL)
- return;
-
/*
* Decode the authorization string to get the input token...
*/
client_name = GSS_C_NO_NAME;
major_status = gss_accept_sec_context(&minor_status,
&context,
- server_creds,
+ GSS_C_NO_CREDENTIAL,
&input_token,
GSS_C_NO_CHANNEL_BINDINGS,
&client_name,
NULL,
&con->gss_output_token,
- &ret_flags,
+ &con->gss_flags,
NULL,
- &con->gss_delegated_cred);
+ &con->gss_creds);
if (GSS_ERROR(major_status))
{
if (context != GSS_C_NO_CONTEXT)
gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER);
-
- gss_release_cred(&minor_status, &server_creds);
return;
}
- /*
- * Release our credentials...
- */
-
- gss_release_cred(&minor_status, &server_creds);
-
/*
* Get the username associated with the client's credentials...
*/
- if (!con->gss_delegated_cred)
+ if (!con->gss_creds)
cupsdLogMessage(CUPSD_LOG_DEBUG,
- "cupsdAuthorize: No delegated credentials!");
+ "cupsdAuthorize: No credentials!");
if (major_status == GSS_S_CONTINUE_NEEDED)
cupsdLogGSSMessage(CUPSD_LOG_DEBUG, major_status, minor_status,
- "cupsdAuthorize: Credentials not complete");
+ "cupsdAuthorize: Credentials not complete");
else if (major_status == GSS_S_COMPLETE)
{
major_status = gss_display_name(&minor_status, client_name,
{
cupsdLogGSSMessage(CUPSD_LOG_DEBUG, major_status, minor_status,
"cupsdAuthorize: Error getting username");
+ gss_release_cred(&minor_status, &con->gss_creds);
gss_release_name(&minor_status, &client_name);
gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER);
return;
}
- gss_release_name(&minor_status, &client_name);
strlcpy(username, output_token.value, sizeof(username));
cupsdLogMessage(CUPSD_LOG_DEBUG,
"cupsdAuthorize: Authorized as %s using Negotiate",
username);
+ gss_release_name(&minor_status, &client_name);
gss_release_buffer(&minor_status, &output_token);
- gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER);
- con->gss_have_creds = 1;
+ con->type = CUPSD_AUTH_NEGOTIATE;
}
else
- gss_release_name(&minor_status, &client_name);
+ gss_release_cred(&minor_status, &con->gss_creds);
+
+ gss_delete_sec_context(&minor_status, &context, GSS_C_NO_BUFFER);
}
#endif /* HAVE_GSSAPI */
- else if (type != AUTH_NONE)
+ else
{
char scheme[256]; /* Auth scheme... */
- static const char * const types[] = /* Auth types */
- {
- "None",
- "Basic",
- "Digest",
- "BasicDigest",
- "Negotiate"
- };
if (sscanf(authorization, "%255s", scheme) != 1)
strcpy(scheme, "UNKNOWN");
- cupsdLogMessage(CUPSD_LOG_ERROR,
- "Bad authentication data \"%s ...\", expected \"%s ...\"",
- scheme, types[type]);
+ cupsdLogMessage(CUPSD_LOG_ERROR, "Bad authentication data \"%s ...\"",
+ scheme);
return;
}
}
+/*
+ * 'cupsdCheckAccess()' - Check whether the given address is allowed to
+ * access a location.
+ */
+
+int /* O - 1 if allowed, 0 otherwise */
+cupsdCheckAccess(
+ unsigned ip[4], /* I - Client address */
+ char *name, /* I - Client hostname */
+ int namelen, /* I - Length of hostname */
+ cupsd_location_t *loc) /* I - Location to check */
+{
+ int allow; /* 1 if allowed, 0 otherwise */
+
+
+ if (!strcasecmp(name, "localhost"))
+ {
+ /*
+ * Access from localhost (127.0.0.1 or ::1) is always allowed...
+ */
+
+ return (1);
+ }
+ else
+ {
+ /*
+ * Do authorization checks on the domain/address...
+ */
+
+ switch (loc->order_type)
+ {
+ default :
+ allow = 0; /* anti-compiler-warning-code */
+ break;
+
+ case CUPSD_AUTH_ALLOW : /* Order Deny,Allow */
+ allow = 1;
+
+ if (cupsdCheckAuth(ip, name, namelen, loc->num_deny, loc->deny))
+ allow = 0;
+
+ if (cupsdCheckAuth(ip, name, namelen, loc->num_allow, loc->allow))
+ allow = 1;
+ break;
+
+ case CUPSD_AUTH_DENY : /* Order Allow,Deny */
+ allow = 0;
+
+ if (cupsdCheckAuth(ip, name, namelen, loc->num_allow, loc->allow))
+ allow = 1;
+
+ if (cupsdCheckAuth(ip, name, namelen, loc->num_deny, loc->deny))
+ allow = 0;
+ break;
+ }
+ }
+
+ return (allow);
+}
+
+
/*
* 'cupsdCheckAuth()' - Check authorization masks.
*/
unsigned netip6[4]; /* IPv6 network address */
#endif /* AF_INET6 */
+
while (num_masks > 0)
{
switch (masks->type)
{
- case AUTH_INTERFACE :
+ case CUPSD_AUTH_INTERFACE :
/*
* Check for a match with a network interface...
*/
if (!strcmp(masks->mask.name.name, "*"))
{
+#ifdef __APPLE__
+ /*
+ * Allow Back-to-My-Mac addresses...
+ */
+
+ if ((ip[0] & 0xff000000) == 0xfd000000)
+ return (1);
+#endif /* __APPLE__ */
+
/*
* Check against all local interfaces...
*/
}
break;
- case AUTH_NAME :
+ case CUPSD_AUTH_NAME :
/*
* Check for exact name match...
*/
return (1);
break;
- case AUTH_IP :
+ case CUPSD_AUTH_IP :
/*
* Check for IP/network address match...
*/
struct passwd *user, /* I - System user info */
const char *groupname) /* I - Group name */
{
- int i; /* Looping var */
- struct group *group; /* System group info */
- char junk[33]; /* MD5 password (not used) */
+ int i; /* Looping var */
+ struct group *group; /* System group info */
+ char junk[33]; /* MD5 password (not used) */
#ifdef HAVE_MBR_UID_TO_UUID
- uuid_t useruuid, /* UUID for username */
- groupuuid; /* UUID for groupname */
- int is_member; /* True if user is a member of group */
+ uuid_t useruuid, /* UUID for username */
+ groupuuid; /* UUID for groupname */
+ int is_member; /* True if user is a member of group */
#endif /* HAVE_MBR_UID_TO_UUID */
* Check group membership through MacOS X membership API...
*/
- if (user && group)
- if (!mbr_uid_to_uuid(user->pw_uid, useruuid))
+ if (user && !mbr_uid_to_uuid(user->pw_uid, useruuid))
+ {
+ if (group)
+ {
+ /*
+ * Map group name to UUID and check membership...
+ */
+
if (!mbr_gid_to_uuid(group->gr_gid, groupuuid))
- if (!mbr_check_membership(useruuid, groupuuid, &is_member))
+ if (!mbr_check_membership(useruuid, groupuuid, &is_member))
if (is_member)
return (1);
+ }
+ else if (groupname[0] == '#')
+ {
+ /*
+ * Use UUID directly and check for equality (user UUID) and
+ * membership (group UUID)...
+ */
+
+ if (!uuid_parse((char *)groupname + 1, groupuuid))
+ {
+ if (!uuid_compare(useruuid, groupuuid))
+ return (1);
+ else if (!mbr_check_membership(useruuid, groupuuid, &is_member))
+ if (is_member)
+ return (1);
+ }
+
+ return (0);
+ }
+ }
+ else if (groupname[0] == '#')
+ return (0);
#endif /* HAVE_MBR_UID_TO_UUID */
/*
}
+#ifdef HAVE_GSSAPI
+/*
+ * 'cupsdCopyKrb5Creds()' - Get a copy of the Kerberos credentials.
+ */
+
+krb5_ccache /* O - Credentials or NULL */
+cupsdCopyKrb5Creds(cupsd_client_t *con) /* I - Client connection */
+{
+# if !defined(HAVE_KRB5_CC_NEW_UNIQUE) && !defined(HAVE_HEIMDAL)
+ cupsdLogMessage(CUPSD_LOG_INFO,
+ "Sorry, your version of Kerberos does not support delegated "
+ "credentials!");
+ return (NULL);
+
+# else
+ krb5_ccache ccache = NULL; /* Credentials */
+ krb5_error_code error; /* Kerberos error code */
+ OM_uint32 major_status, /* Major status code */
+ minor_status; /* Minor status code */
+ krb5_principal principal; /* Kerberos principal */
+
+
+# ifdef __APPLE__
+ /*
+ * If the weak-linked GSSAPI/Kerberos library is not present, don't try
+ * to use it...
+ */
+
+ if (krb5_init_context == NULL)
+ return (NULL);
+# endif /* __APPLE__ */
+
+ if (!KerberosInitialized)
+ {
+ /*
+ * Setup a Kerberos context for the scheduler to use...
+ */
+
+ KerberosInitialized = 1;
+
+ if (krb5_init_context(&KerberosContext))
+ {
+ KerberosContext = NULL;
+
+ cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to initialize Kerberos context");
+ return (NULL);
+ }
+ }
+
+ /*
+ * We MUST create a file-based cache because memory-based caches are
+ * only valid for the current process/address space.
+ *
+ * Due to various bugs/features in different versions of Kerberos, we
+ * need either the krb5_cc_new_unique() function or Heimdal's version
+ * of krb5_cc_gen_new() to create a new FILE: credential cache that
+ * can be passed to the backend. These functions create a temporary
+ * file (typically in /tmp) containing the cached credentials, which
+ * are removed when we have successfully printed a job.
+ */
+
+# ifdef HAVE_KRB5_CC_NEW_UNIQUE
+ if ((error = krb5_cc_new_unique(KerberosContext, "FILE", NULL, &ccache)) != 0)
+# else /* HAVE_HEIMDAL */
+ if ((error = krb5_cc_gen_new(KerberosContext, &krb5_fcc_ops, &ccache)) != 0)
+# endif /* HAVE_KRB5_CC_NEW_UNIQUE */
+ {
+ cupsdLogMessage(CUPSD_LOG_ERROR,
+ "Unable to create new credentials cache (%d/%s)",
+ error, strerror(errno));
+ return (NULL);
+ }
+
+ if ((error = krb5_parse_name(KerberosContext, con->username, &principal)) != 0)
+ {
+ cupsdLogMessage(CUPSD_LOG_ERROR,
+ "Unable to parse kerberos username (%d/%s)", error,
+ strerror(errno));
+ krb5_cc_destroy(KerberosContext, ccache);
+ return (NULL);
+ }
+
+ if ((error = krb5_cc_initialize(KerberosContext, ccache, principal)))
+ {
+ cupsdLogMessage(CUPSD_LOG_ERROR,
+ "Unable to initialize credentials cache (%d/%s)", error,
+ strerror(errno));
+ krb5_cc_destroy(KerberosContext, ccache);
+ krb5_free_principal(KerberosContext, principal);
+ return (NULL);
+ }
+
+ krb5_free_principal(KerberosContext, principal);
+
+ /*
+ * Copy the user's credentials to the new cache file...
+ */
+
+# ifdef HAVE_KRB5_IPC_CLIENT_SET_TARGET_UID
+ if (con->http.hostaddr->addr.sa_family == AF_LOCAL &&
+ !(con->gss_flags & GSS_C_DELEG_FLAG))
+ {
+ /*
+ * Pull the credentials directly from the user...
+ */
+
+ cupsd_ucred_t peercred; /* Peer credentials */
+ socklen_t peersize; /* Size of peer credentials */
+ krb5_ccache peerccache; /* Peer Kerberos credentials */
+
+ peersize = sizeof(peercred);
+
+ if (getsockopt(con->http.fd, SOL_SOCKET, SO_PEERCRED, &peercred, &peersize))
+ {
+ cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to get peer credentials - %s",
+ strerror(errno));
+ krb5_cc_destroy(KerberosContext, ccache);
+ return (NULL);
+ }
+
+ krb5_ipc_client_set_target_uid(CUPSD_UCRED_UID(peercred));
+
+ if ((error = krb5_cc_default(KerberosContext, &peerccache)) != 0)
+ {
+ cupsdLogMessage(CUPSD_LOG_ERROR,
+ "Unable to get credentials cache for UID %d (%d/%s)",
+ (int)CUPSD_UCRED_UID(peercred), error, strerror(errno));
+ krb5_cc_destroy(KerberosContext, ccache);
+ return (NULL);
+ }
+
+ error = krb5_cc_copy_creds(KerberosContext, peerccache, ccache);
+ krb5_cc_close(KerberosContext, peerccache);
+ krb5_ipc_client_clear_target();
+
+ if (error)
+ {
+ cupsdLogMessage(CUPSD_LOG_ERROR,
+ "Unable to copy credentials cache for UID %d (%d/%s)",
+ (int)CUPSD_UCRED_UID(peercred), error, strerror(errno));
+ krb5_cc_destroy(KerberosContext, ccache);
+ return (NULL);
+ }
+ }
+ else
+# endif /* HAVE_KRB5_IPC_CLIENT_SET_TARGET_UID */
+ {
+ major_status = gss_krb5_copy_ccache(&minor_status, con->gss_creds, ccache);
+
+ if (GSS_ERROR(major_status))
+ {
+ cupsdLogGSSMessage(CUPSD_LOG_ERROR, major_status, minor_status,
+ "Unable to copy client credentials cache");
+ krb5_cc_destroy(KerberosContext, ccache);
+ return (NULL);
+ }
+ }
+
+ return (ccache);
+# endif /* !HAVE_KRB5_CC_NEW_UNIQUE && !HAVE_HEIMDAL */
+}
+#endif /* HAVE_GSSAPI */
+
+
/*
* 'cupsdCopyLocation()' - Make a copy of a location...
*/
for (i = 0; i < temp->num_allow; i ++)
switch (temp->allow[i].type = (*loc)->allow[i].type)
{
- case AUTH_NAME :
+ case CUPSD_AUTH_NAME :
temp->allow[i].mask.name.length = (*loc)->allow[i].mask.name.length;
temp->allow[i].mask.name.name = strdup((*loc)->allow[i].mask.name.name);
return (NULL);
}
break;
- case AUTH_IP :
+ case CUPSD_AUTH_IP :
memcpy(&(temp->allow[i].mask.ip), &((*loc)->allow[i].mask.ip),
sizeof(cupsd_ipmask_t));
break;
for (i = 0; i < temp->num_deny; i ++)
switch (temp->deny[i].type = (*loc)->deny[i].type)
{
- case AUTH_NAME :
+ case CUPSD_AUTH_NAME :
temp->deny[i].mask.name.length = (*loc)->deny[i].mask.name.length;
temp->deny[i].mask.name.name = strdup((*loc)->deny[i].mask.name.name);
return (NULL);
}
break;
- case AUTH_IP :
+ case CUPSD_AUTH_IP :
memcpy(&(temp->deny[i].mask.ip), &((*loc)->deny[i].mask.ip),
sizeof(cupsd_ipmask_t));
break;
free(loc->names);
for (i = loc->num_allow, mask = loc->allow; i > 0; i --, mask ++)
- if (mask->type == AUTH_NAME || mask->type == AUTH_INTERFACE)
+ if (mask->type == CUPSD_AUTH_NAME || mask->type == CUPSD_AUTH_INTERFACE)
free(mask->mask.name.name);
if (loc->num_allow > 0)
free(loc->allow);
for (i = loc->num_deny, mask = loc->deny; i > 0; i --, mask ++)
- if (mask->type == AUTH_NAME || mask->type == AUTH_INTERFACE)
+ if (mask->type == CUPSD_AUTH_NAME || mask->type == CUPSD_AUTH_INTERFACE)
free(mask->mask.name.name);
if (loc->num_deny > 0)
* Deny *interface*...
*/
- temp->type = AUTH_INTERFACE;
+ temp->type = CUPSD_AUTH_INTERFACE;
temp->mask.name.name = strdup("*");
temp->mask.name.length = 1;
}
*ifptr = '\0';
}
- temp->type = AUTH_INTERFACE;
+ temp->type = CUPSD_AUTH_INTERFACE;
temp->mask.name.name = strdup(ifname);
temp->mask.name.length = ifptr - ifname;
}
* Deny name...
*/
- temp->type = AUTH_NAME;
+ temp->type = CUPSD_AUTH_NAME;
temp->mask.name.name = strdup(name);
temp->mask.name.length = strlen(name);
}
void
cupsdDenyIP(cupsd_location_t *loc, /* I - Location to add to */
- unsigned address[4],/* I - IP address to add */
- unsigned netmask[4])/* I - Netmask of address */
+ const unsigned address[4],/* I - IP address to add */
+ const unsigned netmask[4])/* I - Netmask of address */
{
cupsd_authmask_t *temp; /* New host/domain mask */
if ((temp = add_deny(loc)) == NULL)
return;
- temp->type = AUTH_IP;
+ temp->type = CUPSD_AUTH_IP;
memcpy(temp->mask.ip.address, address, sizeof(temp->mask.ip.address));
memcpy(temp->mask.ip.netmask, netmask, sizeof(temp->mask.ip.netmask));
}
*best; /* Best match for location so far */
int bestlen; /* Length of best match */
int limit; /* Limit field */
- static const int limits[] = /* Map http_status_t to AUTH_LIMIT_xyz */
+ static const int limits[] = /* Map http_status_t to CUPSD_AUTH_LIMIT_xyz */
{
- AUTH_LIMIT_ALL,
- AUTH_LIMIT_OPTIONS,
- AUTH_LIMIT_GET,
- AUTH_LIMIT_GET,
- AUTH_LIMIT_HEAD,
- AUTH_LIMIT_POST,
- AUTH_LIMIT_POST,
- AUTH_LIMIT_POST,
- AUTH_LIMIT_PUT,
- AUTH_LIMIT_PUT,
- AUTH_LIMIT_DELETE,
- AUTH_LIMIT_TRACE,
- AUTH_LIMIT_ALL,
- AUTH_LIMIT_ALL
+ CUPSD_AUTH_LIMIT_ALL,
+ CUPSD_AUTH_LIMIT_OPTIONS,
+ CUPSD_AUTH_LIMIT_GET,
+ CUPSD_AUTH_LIMIT_GET,
+ CUPSD_AUTH_LIMIT_HEAD,
+ CUPSD_AUTH_LIMIT_POST,
+ CUPSD_AUTH_LIMIT_POST,
+ CUPSD_AUTH_LIMIT_POST,
+ CUPSD_AUTH_LIMIT_PUT,
+ CUPSD_AUTH_LIMIT_PUT,
+ CUPSD_AUTH_LIMIT_DELETE,
+ CUPSD_AUTH_LIMIT_TRACE,
+ CUPSD_AUTH_LIMIT_ALL,
+ CUPSD_AUTH_LIMIT_ALL
};
const char *owner)/* I - Owner of object */
{
int i, j, /* Looping vars */
- auth; /* Authorization status */
+ auth, /* Authorization status */
+ type; /* Type of authentication */
unsigned address[4]; /* Authorization address */
cupsd_location_t *best; /* Best match for location so far */
int hostlen; /* Length of hostname */
};
static const char * const types[] = /* Auth types */
{
- "NONE",
- "BASIC",
- "DIGEST",
- "BASICDIGEST",
- "KERBEROS"
+ "None",
+ "Basic",
+ "Digest",
+ "BasicDigest",
+ "Negotiate"
};
best = con->best;
+ if ((type = best->type) == CUPSD_AUTH_DEFAULT)
+ type = DefaultAuthType;
+
cupsdLogMessage(CUPSD_LOG_DEBUG2,
- "cupsdIsAuthorized: level=AUTH_%s, type=AUTH_%s, "
- "satisfy=AUTH_SATISFY_%s, num_names=%d",
- levels[best->level], types[best->type],
+ "cupsdIsAuthorized: level=CUPSD_AUTH_%s, type=%s, "
+ "satisfy=CUPSD_AUTH_SATISFY_%s, num_names=%d",
+ levels[best->level], types[type],
best->satisfy ? "ANY" : "ALL", best->num_names);
- if (best->limit == AUTH_LIMIT_IPP)
+ if (best->limit == CUPSD_AUTH_LIMIT_IPP)
cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: op=%x(%s)",
best->op, ippOpString(best->op));
hostlen = strlen(con->http.hostname);
- if (!strcasecmp(con->http.hostname, "localhost"))
- {
- /*
- * Access from localhost (127.0.0.1 or ::1) is always allowed...
- */
-
- auth = AUTH_ALLOW;
- }
- else
- {
- /*
- * Do authorization checks on the domain/address...
- */
-
- switch (best->order_type)
- {
- default :
- auth = AUTH_DENY; /* anti-compiler-warning-code */
- break;
-
- case AUTH_ALLOW : /* Order Deny,Allow */
- auth = AUTH_ALLOW;
-
- if (cupsdCheckAuth(address, con->http.hostname, hostlen,
- best->num_deny, best->deny))
- auth = AUTH_DENY;
-
- if (cupsdCheckAuth(address, con->http.hostname, hostlen,
- best->num_allow, best->allow))
- auth = AUTH_ALLOW;
- break;
+ auth = cupsdCheckAccess(address, con->http.hostname, hostlen, best)
+ ? CUPSD_AUTH_ALLOW : CUPSD_AUTH_DENY;
- case AUTH_DENY : /* Order Allow,Deny */
- auth = AUTH_DENY;
-
- if (cupsdCheckAuth(address, con->http.hostname, hostlen,
- best->num_allow, best->allow))
- auth = AUTH_ALLOW;
-
- if (cupsdCheckAuth(address, con->http.hostname, hostlen,
- best->num_deny, best->deny))
- auth = AUTH_DENY;
- break;
- }
- }
-
- cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: auth=AUTH_%s...",
+ cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdIsAuthorized: auth=CUPSD_AUTH_%s...",
auth ? "DENY" : "ALLOW");
- if (auth == AUTH_DENY && best->satisfy == AUTH_SATISFY_ALL)
+ if (auth == CUPSD_AUTH_DENY && best->satisfy == CUPSD_AUTH_SATISFY_ALL)
return (HTTP_FORBIDDEN);
#ifdef HAVE_SSL
if ((best->encryption >= HTTP_ENCRYPT_REQUIRED && !con->http.tls &&
strcasecmp(con->http.hostname, "localhost") &&
- best->satisfy == AUTH_SATISFY_ALL) &&
- !(best->type == AUTH_NEGOTIATE ||
- (best->type == AUTH_NONE && DefaultAuthType == AUTH_NEGOTIATE)))
+ best->satisfy == CUPSD_AUTH_SATISFY_ALL) &&
+ !(type == CUPSD_AUTH_NEGOTIATE ||
+ (type == CUPSD_AUTH_NONE && DefaultAuthType == CUPSD_AUTH_NEGOTIATE)))
{
cupsdLogMessage(CUPSD_LOG_DEBUG,
"cupsdIsAuthorized: Need upgrade to TLS...");
* Now see what access level is required...
*/
- if (best->level == AUTH_ANON || /* Anonymous access - allow it */
- (best->type == AUTH_NONE && best->num_names == 0))
+ if (best->level == CUPSD_AUTH_ANON || /* Anonymous access - allow it */
+ (type == CUPSD_AUTH_NONE && best->num_names == 0))
return (HTTP_OK);
- if (!con->username[0] && best->type == AUTH_NONE &&
- best->limit == AUTH_LIMIT_IPP)
+ if (!con->username[0] && type == CUPSD_AUTH_NONE &&
+ best->limit == CUPSD_AUTH_LIMIT_IPP)
{
/*
* Check for unauthenticated username...
attr->values[0].string.text);
strlcpy(username, attr->values[0].string.text, sizeof(username));
}
- else if (best->satisfy == AUTH_SATISFY_ALL || auth == AUTH_DENY)
+ else if (best->satisfy == CUPSD_AUTH_SATISFY_ALL || auth == CUPSD_AUTH_DENY)
return (HTTP_UNAUTHORIZED); /* Non-anonymous needs user/pass */
else
return (HTTP_OK); /* unless overridden with Satisfy */
if (!con->username[0])
#endif /* HAVE_AUTHORIZATION_H */
{
- if (best->satisfy == AUTH_SATISFY_ALL || auth == AUTH_DENY)
+ if (best->satisfy == CUPSD_AUTH_SATISFY_ALL || auth == CUPSD_AUTH_DENY)
return (HTTP_UNAUTHORIZED); /* Non-anonymous needs user/pass */
else
return (HTTP_OK); /* unless overridden with Satisfy */
}
+ if (con->type != type && type != CUPSD_AUTH_NONE &&
+ (con->type != CUPSD_AUTH_BASIC || type != CUPSD_AUTH_BASICDIGEST))
+ {
+ cupsdLogMessage(CUPSD_LOG_ERROR, "Authorized using %s, expected %s!",
+ types[con->type], types[type]);
+
+ return (HTTP_UNAUTHORIZED);
+ }
+
strlcpy(username, con->username, sizeof(username));
}
else
pw = NULL;
- if (best->level == AUTH_USER)
+ if (best->level == CUPSD_AUTH_USER)
{
/*
* If there are no names associated with this location, then
return (HTTP_OK);
}
- return (HTTP_UNAUTHORIZED);
+ return (HTTP_FORBIDDEN);
}
#endif /* HAVE_AUTHORIZATION_H */
return (HTTP_OK);
}
- return (HTTP_UNAUTHORIZED);
+ return (HTTP_FORBIDDEN);
}
/*
cupsdLogMessage(CUPSD_LOG_DEBUG,
"cupsdIsAuthorized: User not in group(s)!");
- return (HTTP_UNAUTHORIZED);
+ return (HTTP_FORBIDDEN);
}
#endif /* !HAVE_LIBPAM && !HAVE_USERSEC_H */
-#ifdef HAVE_GSSAPI
-/*
- * 'get_gss_creds()' - Obtain GSS credentials.
- */
-
-static gss_cred_id_t /* O - Server credentials */
-get_gss_creds(const char *service_name) /* I - Service name */
-{
- OM_uint32 major_status, /* Major status code */
- minor_status; /* Minor status code */
- gss_name_t server_name; /* Server name */
- gss_cred_id_t server_creds; /* Server credentials */
- gss_buffer_desc token = GSS_C_EMPTY_BUFFER;
- /* Service name token */
- char buf[1024], /* Service name buffer */
- fqdn[HTTP_MAX_URI]; /* Hostname of server */
-
-
- snprintf(buf, sizeof(buf), "%s@%s", service_name,
- httpGetHostname(NULL, fqdn, sizeof(fqdn)));
-
- token.value = buf;
- token.length = strlen(buf);
- server_name = GSS_C_NO_NAME;
- major_status = gss_import_name(&minor_status, &token,
- GSS_C_NT_HOSTBASED_SERVICE,
- &server_name);
-
- memset(&token, 0, sizeof(token));
-
- if (GSS_ERROR(major_status))
- {
- cupsdLogGSSMessage(CUPSD_LOG_WARN, major_status, minor_status,
- "gss_import_name() failed");
- return (NULL);
- }
-
- major_status = gss_display_name(&minor_status, server_name, &token, NULL);
-
- if (GSS_ERROR(major_status))
- {
- cupsdLogGSSMessage(CUPSD_LOG_WARN, major_status, minor_status,
- "gss_display_name() failed");
- return (NULL);
- }
-
- cupsdLogMessage(CUPSD_LOG_DEBUG,
- "get_gss_creds: Attempting to acquire credentials for %s...",
- (char *)token.value);
-
- server_creds = GSS_C_NO_CREDENTIAL;
- major_status = gss_acquire_cred(&minor_status, server_name, GSS_C_INDEFINITE,
- GSS_C_NO_OID_SET, GSS_C_ACCEPT,
- &server_creds, NULL, NULL);
- if (GSS_ERROR(major_status))
- {
- cupsdLogGSSMessage(CUPSD_LOG_WARN, major_status, minor_status,
- "gss_acquire_cred() failed");
- gss_release_name(&minor_status, &server_name);
- gss_release_buffer(&minor_status, &token);
- return (NULL);
- }
-
- cupsdLogMessage(CUPSD_LOG_DEBUG,
- "get_gss_creds: Credentials acquired successfully for %s.",
- (char *)token.value);
-
- gss_release_name(&minor_status, &server_name);
- gss_release_buffer(&minor_status, &token);
-
- return (server_creds);
-}
-#endif /* HAVE_GSSAPI */
-
-
/*
* 'get_md5_password()' - Get an MD5 password.
*/
/*
- * End of "$Id: auth.c 6947 2007-09-12 21:09:49Z mike $".
+ * End of "$Id: auth.c 7830 2008-08-04 20:38:50Z mike $".
*/
projects / thirdparty / cups.git / blobdiff