/*
- * "$Id$"
+ * TLS support code for CUPS on macOS.
*
- * TLS support code for CUPS on OS X.
+ * Copyright © 2007-2018 by Apple Inc.
+ * Copyright © 1997-2007 by Easy Software Products, all rights reserved.
*
- * Copyright 2007-2014 by Apple Inc.
- * Copyright 1997-2007 by Easy Software Products, all rights reserved.
- *
- * These coded instructions, statements, and computer programs are the
- * property of Apple Inc. and are protected by Federal copyright
- * law. Distribution and use rights are outlined in the file "LICENSE.txt"
- * which should have been included with this file. If this file is
- * file is missing or damaged, see the license at "http://www.cups.org/".
- *
- * This file is subject to the Apple OS-Developed Software exception.
+ * Licensed under Apache License v2.0. See the file "LICENSE" for more information.
*/
-/**** This file is included from http.c ****/
+/**** This file is included from tls.c ****/
/*
* Include necessary headers...
extern char **environ;
+#ifndef _SECURITY_VERSION_GREATER_THAN_57610_
+typedef CF_OPTIONS(uint32_t, SecKeyUsage) {
+ kSecKeyUsageAll = 0x7FFFFFFF
+};
+#endif /* !_SECURITY_VERSION_GREATER_THAN_57610_ */
+extern const void * kSecCSRChallengePassword;
+extern const void * kSecSubjectAltName;
+extern const void * kSecCertificateKeyUsage;
+extern const void * kSecCSRBasicContraintsPathLen;
+extern const void * kSecCertificateExtensions;
+extern const void * kSecCertificateExtensionsEncoded;
+extern const void * kSecOidCommonName;
+extern const void * kSecOidCountryName;
+extern const void * kSecOidStateProvinceName;
+extern const void * kSecOidLocalityName;
+extern const void * kSecOidOrganization;
+extern const void * kSecOidOrganizationalUnit;
+extern bool SecCertificateIsValid(SecCertificateRef certificate, CFAbsoluteTime verifyTime);
+extern CFAbsoluteTime SecCertificateNotValidAfter(SecCertificateRef certificate);
+extern SecCertificateRef SecGenerateSelfSignedCertificate(CFArrayRef subject, CFDictionaryRef parameters, SecKeyRef publicKey, SecKeyRef privateKey);
+extern SecIdentityRef SecIdentityCreate(CFAllocatorRef allocator, SecCertificateRef certificate, SecKeyRef privateKey);
+
+
+/*
+ * Constants, very secure stuff...
+ */
+
+#define _CUPS_CDSA_PASSWORD "42" /* CUPS keychain password */
+#define _CUPS_CDSA_PASSLEN 2 /* Length of keychain password */
+
+
/*
* Local globals...
*/
-#ifdef HAVE_SECKEYCHAINOPEN
static int tls_auto_create = 0;
/* Auto-create self-signed certs? */
static char *tls_common_name = NULL;
/* Default common name */
+#if TARGET_OS_OSX
+static int tls_cups_keychain = 0;
+ /* Opened the CUPS keychain? */
static SecKeychainRef tls_keychain = NULL;
/* Server cert keychain */
+#else
+static SecIdentityRef tls_selfsigned = NULL;
+ /* Temporary self-signed cert */
+#endif /* TARGET_OS_OSX */
static char *tls_keypath = NULL;
/* Server cert keychain path */
static _cups_mutex_t tls_mutex = _CUPS_MUTEX_INITIALIZER;
/* Mutex for keychain/certs */
-#endif /* HAVE_SECKEYCHAINOPEN */
+static int tls_options = -1,/* Options for TLS connections */
+ tls_min_version = _HTTP_TLS_1_0,
+ tls_max_version = _HTTP_TLS_MAX;
/*
* Local functions...
*/
-#ifdef HAVE_SECKEYCHAINOPEN
static CFArrayRef http_cdsa_copy_server(const char *common_name);
-#endif /* HAVE_SECKEYCHAINOPEN */
+static SecCertificateRef http_cdsa_create_credential(http_credential_t *credential);
+#if TARGET_OS_OSX
+static const char *http_cdsa_default_path(char *buffer, size_t bufsize);
+static SecKeychainRef http_cdsa_open_keychain(const char *path, char *filename, size_t filesize);
+static SecKeychainRef http_cdsa_open_system_keychain(void);
+#endif /* TARGET_OS_OSX */
static OSStatus http_cdsa_read(SSLConnectionRef connection, void *data, size_t *dataLength);
static int http_cdsa_set_credentials(http_t *http);
static OSStatus http_cdsa_write(SSLConnectionRef connection, const void *data, size_t *dataLength);
/*
* 'cupsMakeServerCredentials()' - Make a self-signed certificate and private key pair.
*
- * @since CUPS 2.0@
+ * @since CUPS 2.0/OS 10.10@
*/
int /* O - 1 on success, 0 on failure */
const char **alt_names, /* I - Subject Alternate Names */
time_t expiration_date) /* I - Expiration date */
{
-#if defined(HAVE_SECGENERATESELFSIGNEDCERTIFICATE) && defined(HAVE_SECKEYCHAINOPEN)
- char filename[1024]; /* Default keychain path */
- int status = 0; /* Return status */
- OSStatus err; /* Error code (if any) */
- CFStringRef cfcommon_name = NULL;
- /* CF string for server name */
- SecIdentityRef ident = NULL; /* Identity */
- SecKeyRef publicKey = NULL,
- /* Public key */
- privateKey = NULL;
- /* Private key */
- CFMutableDictionaryRef keyParams = NULL;
- /* Key generation parameters */
-
-
- DEBUG_printf(("cupsMakeServerCredentials(path=\"%s\", common_name=\"%s\", num_alt_names=%d, alt_names=%p, expiration_date=%d)", path, common_name, num_alt_names, alt_names, (int)expiration_date));
-
- (void)num_alt_names;
- (void)alt_names;
- (void)expiration_date;
-
- if (!path)
- {
- const char *home = getenv("HOME"); /* HOME environment variable */
-
- if (getuid() && home)
- snprintf(filename, sizeof(filename), "%s/Library/Keychains/login.keychain", home);
- else
- strlcpy(filename, "/Library/Keychains/System.keychain", sizeof(filename));
-
- path = filename;
-
- DEBUG_printf(("1cupsMakeServerCredentials: Using default path \"%s\".", path));
- }
-
- cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8);
- if (!cfcommon_name)
- goto cleanup;
-
- /*
- * Create a public/private key pair...
- */
-
- keyParams = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
- if (!keyParams)
- goto cleanup;
-
- CFDictionaryAddValue(keyParams, kSecAttrKeyType, kSecAttrKeyTypeRSA);
- CFDictionaryAddValue(keyParams, kSecAttrKeySizeInBits, CFSTR("2048"));
- CFDictionaryAddValue(keyParams, kSecAttrLabel, CFSTR("CUPS Self-Signed Certificate"));
-
- err = SecKeyGeneratePair(keyParams, &publicKey, &privateKey);
- if (err != noErr)
- goto cleanup;
-
- /*
- * Create a self-signed certificate using the public/private key pair...
- */
-
- CFIndex usageInt = kSecKeyUsageAll;
- CFNumberRef usage = CFNumberCreate(alloc, kCFNumberCFIndexType, &usageInt);
- CFDictionaryRef certParams = CFDictionaryCreateMutable(kCFAllocatorDefault,
-kSecCSRBasicContraintsPathLen, CFINT(0), kSecSubjectAltName, cfcommon_name, kSecCertificateKeyUsage, usage, NULL, NULL);
- CFRelease(usage);
-
- const void *ca_o[] = { kSecOidOrganization, CFSTR("") };
- const void *ca_cn[] = { kSecOidCommonName, cfcommon_name };
- CFArrayRef ca_o_dn = CFArrayCreate(kCFAllocatorDefault, ca_o, 2, NULL);
- CFArrayRef ca_cn_dn = CFArrayCreate(kCFAllocatorDefault, ca_cn, 2, NULL);
- const void *ca_dn_array[2];
-
- ca_dn_array[0] = CFArrayCreate(kCFAllocatorDefault, (const void **)&ca_o_dn, 1, NULL);
- ca_dn_array[1] = CFArrayCreate(kCFAllocatorDefault, (const void **)&ca_cn_dn, 1, NULL);
-
- CFArrayRef subject = CFArrayCreate(kCFAllocatorDefault, ca_dn_array, 2, NULL);
- SecCertificateRef cert = SecGenerateSelfSignedCertificate(subject, certParams, publicKey, privateKey);
- CFRelease(subject);
- CFRelease(certParams);
-
- if (!cert)
- goto cleanup;
-
- ident = SecIdentityCreate(kCFAllocatorDefault, cert, privateKey);
-
- if (ident)
- status = 1;
-
- /*
- * Cleanup and return...
- */
-
-cleanup:
-
- if (cfcommon_name)
- CFRelease(cfcommon_name);
-
- if (keyParams)
- CFRelease(keyParams);
-
- if (ident)
- CFRelease(ident);
-
- if (cert)
- CFRelease(cert);
-
- if (publicKey)
- CFRelease(publicKey);
-
- if (privateKey)
- CFRelease(publicKey);
-
- return (status);
-
-#else /* !(HAVE_SECGENERATESELFSIGNEDCERTIFICATE && HAVE_SECKEYCHAINOPEN) */
+#if TARGET_OS_OSX
int pid, /* Process ID of command */
status, /* Status of command */
i; /* Looping var */
char command[1024], /* Command */
- *argv[4], /* Command-line arguments */
+ *argv[5], /* Command-line arguments */
*envp[1000], /* Environment variables */
days[32], /* CERTTOOL_EXPIRATION_DAYS env var */
keychain[1024], /* Keychain argument */
cups_file_t *fp; /* Seed/info file */
- DEBUG_printf(("cupsMakeServerCredentials(path=\"%s\", common_name=\"%s\", num_alt_names=%d, alt_names=%p, expiration_date=%d)", path, common_name, num_alt_names, alt_names, (int)expiration_date));
+ DEBUG_printf(("cupsMakeServerCredentials(path=\"%s\", common_name=\"%s\", num_alt_names=%d, alt_names=%p, expiration_date=%d)", path, common_name, num_alt_names, (void *)alt_names, (int)expiration_date));
(void)num_alt_names;
(void)alt_names;
if (!path)
- {
- const char *home = getenv("HOME"); /* HOME environment variable */
-
- if (getuid() && home)
- snprintf(filename, sizeof(filename), "%s/Library/Keychains/login.keychain", home);
- else
- strlcpy(filename, "/Library/Keychains/System.keychain", sizeof(filename));
-
- path = filename;
-
- DEBUG_printf(("1cupsMakeServerCredentials: Using default path \"%s\".", path));
- }
+ path = http_cdsa_default_path(filename, sizeof(filename));
/*
* Run the "certtool" command to generate a self-signed certificate...
"CUPS Self-Signed Certificate\n"
/* Enter key and certificate label */
"r\n" /* Generate RSA key pair */
- "2048\n" /* Key size in bits */
+ "2048\n" /* 2048 bit encryption key */
"y\n" /* OK (y = yes) */
"b\n" /* Usage (b=signing/encryption) */
- "s\n" /* Sign with SHA1 */
+ "2\n" /* Sign with SHA256 */
"y\n" /* OK (y = yes) */
"%s\n" /* Common name */
"\n" /* Country (default) */
}
return (!status);
-#endif /* HAVE_SECGENERATESELFSIGNEDCERTIFICATE && HAVE_SECKEYCHAINOPEN */
+
+#else
+ int status = 0; /* Return status */
+ OSStatus err; /* Error code (if any) */
+ CFStringRef cfcommon_name = NULL;
+ /* CF string for server name */
+ SecIdentityRef ident = NULL; /* Identity */
+ SecKeyRef publicKey = NULL,
+ /* Public key */
+ privateKey = NULL;
+ /* Private key */
+ SecCertificateRef cert = NULL; /* Self-signed certificate */
+ CFMutableDictionaryRef keyParams = NULL;
+ /* Key generation parameters */
+
+
+ DEBUG_printf(("cupsMakeServerCredentials(path=\"%s\", common_name=\"%s\", num_alt_names=%d, alt_names=%p, expiration_date=%d)", path, common_name, num_alt_names, alt_names, (int)expiration_date));
+
+ (void)path;
+ (void)num_alt_names;
+ (void)alt_names;
+ (void)expiration_date;
+
+ if (path)
+ {
+ DEBUG_puts("1cupsMakeServerCredentials: No keychain support compiled in, returning 0.");
+ return (0);
+ }
+
+ if (tls_selfsigned)
+ {
+ DEBUG_puts("1cupsMakeServerCredentials: Using existing self-signed cert.");
+ return (1);
+ }
+
+ cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8);
+ if (!cfcommon_name)
+ {
+ DEBUG_puts("1cupsMakeServerCredentials: Unable to create CF string of common name.");
+ goto cleanup;
+ }
+
+ /*
+ * Create a public/private key pair...
+ */
+
+ keyParams = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
+ if (!keyParams)
+ {
+ DEBUG_puts("1cupsMakeServerCredentials: Unable to create key parameters dictionary.");
+ goto cleanup;
+ }
+
+ CFDictionaryAddValue(keyParams, kSecAttrKeyType, kSecAttrKeyTypeRSA);
+ CFDictionaryAddValue(keyParams, kSecAttrKeySizeInBits, CFSTR("2048"));
+ CFDictionaryAddValue(keyParams, kSecAttrLabel, cfcommon_name);
+
+ err = SecKeyGeneratePair(keyParams, &publicKey, &privateKey);
+ if (err != noErr)
+ {
+ DEBUG_printf(("1cupsMakeServerCredentials: Unable to generate key pair: %d.", (int)err));
+ goto cleanup;
+ }
+
+ /*
+ * Create a self-signed certificate using the public/private key pair...
+ */
+
+ CFIndex usageInt = kSecKeyUsageAll;
+ CFNumberRef usage = CFNumberCreate(kCFAllocatorDefault, kCFNumberCFIndexType, &usageInt);
+ CFIndex lenInt = 0;
+ CFNumberRef len = CFNumberCreate(kCFAllocatorDefault, kCFNumberCFIndexType, &lenInt);
+ CFTypeRef certKeys[] = { kSecCSRBasicContraintsPathLen, kSecSubjectAltName, kSecCertificateKeyUsage };
+ CFTypeRef certValues[] = { len, cfcommon_name, usage };
+ CFDictionaryRef certParams = CFDictionaryCreate(kCFAllocatorDefault, certKeys, certValues, sizeof(certKeys) / sizeof(certKeys[0]), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
+ CFRelease(usage);
+ CFRelease(len);
+
+ const void *ca_o[] = { kSecOidOrganization, CFSTR("") };
+ const void *ca_cn[] = { kSecOidCommonName, cfcommon_name };
+ CFArrayRef ca_o_dn = CFArrayCreate(kCFAllocatorDefault, ca_o, 2, NULL);
+ CFArrayRef ca_cn_dn = CFArrayCreate(kCFAllocatorDefault, ca_cn, 2, NULL);
+ const void *ca_dn_array[2];
+
+ ca_dn_array[0] = CFArrayCreate(kCFAllocatorDefault, (const void **)&ca_o_dn, 1, NULL);
+ ca_dn_array[1] = CFArrayCreate(kCFAllocatorDefault, (const void **)&ca_cn_dn, 1, NULL);
+
+ CFArrayRef subject = CFArrayCreate(kCFAllocatorDefault, ca_dn_array, 2, NULL);
+
+ cert = SecGenerateSelfSignedCertificate(subject, certParams, publicKey, privateKey);
+
+ CFRelease(subject);
+ CFRelease(certParams);
+
+ if (!cert)
+ {
+ DEBUG_puts("1cupsMakeServerCredentials: Unable to create self-signed certificate.");
+ goto cleanup;
+ }
+
+ ident = SecIdentityCreate(kCFAllocatorDefault, cert, privateKey);
+
+ if (ident)
+ {
+ _cupsMutexLock(&tls_mutex);
+
+ if (tls_selfsigned)
+ CFRelease(ident);
+ else
+ tls_selfsigned = ident;
+
+ _cupsMutexLock(&tls_mutex);
+
+# if 0 /* Someday perhaps SecItemCopyMatching will work for identities, at which point */
+ CFTypeRef itemKeys[] = { kSecClass, kSecAttrLabel, kSecValueRef };
+ CFTypeRef itemValues[] = { kSecClassIdentity, cfcommon_name, ident };
+ CFDictionaryRef itemAttrs = CFDictionaryCreate(kCFAllocatorDefault, itemKeys, itemValues, sizeof(itemKeys) / sizeof(itemKeys[0]), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
+
+ err = SecItemAdd(itemAttrs, NULL);
+ /* SecItemAdd consumes itemAttrs... */
+
+ CFRelease(ident);
+
+ if (err != noErr)
+ {
+ DEBUG_printf(("1cupsMakeServerCredentials: Unable to add identity to keychain: %d.", (int)err));
+ goto cleanup;
+ }
+# endif /* 0 */
+
+ status = 1;
+ }
+ else
+ DEBUG_puts("1cupsMakeServerCredentials: Unable to create identity from cert and keys.");
+
+ /*
+ * Cleanup and return...
+ */
+
+cleanup:
+
+ if (cfcommon_name)
+ CFRelease(cfcommon_name);
+
+ if (keyParams)
+ CFRelease(keyParams);
+
+ if (cert)
+ CFRelease(cert);
+
+ if (publicKey)
+ CFRelease(publicKey);
+
+ if (privateKey)
+ CFRelease(privateKey);
+
+ DEBUG_printf(("1cupsMakeServerCredentials: Returning %d.", status));
+
+ return (status);
+#endif /* TARGET_OS_OSX */
}
* Note: The server credentials are used by all threads in the running process.
* This function is threadsafe.
*
- * @since CUPS 2.0@
+ * @since CUPS 2.0/macOS 10.10@
*/
int /* O - 1 on success, 0 on failure */
{
DEBUG_printf(("cupsSetServerCredentials(path=\"%s\", common_name=\"%s\", auto_create=%d)", path, common_name, auto_create));
-#ifdef HAVE_SECKEYCHAINOPEN
- char filename[1024]; /* Filename for keychain */
- SecKeychainRef keychain = NULL;/* Temporary keychain */
-
+#if TARGET_OS_OSX
+ char filename[1024]; /* Keychain filename */
+ SecKeychainRef keychain = http_cdsa_open_keychain(path, filename, sizeof(filename));
- if (!path)
+ if (!keychain)
{
- const char *home = getenv("HOME"); /* HOME environment variable */
-
- if (getuid() && home)
- snprintf(filename, sizeof(filename), "%s/Library/Keychains/login.keychain", home);
- else
- strlcpy(filename, "/Library/Keychains/System.keychain", sizeof(filename));
-
- path = filename;
-
- DEBUG_printf(("1cupsSetServerCredentials: Using default path \"%s\".", path));
- }
-
- if (SecKeychainOpen(path, &keychain) != noErr)
- {
- /* TODO: Set cups last error string */
- DEBUG_puts("1cupsSetServerCredentials: Unable to open keychain, returning 0.");
+ DEBUG_puts("1cupsSetServerCredentials: Unable to open keychain.");
return (0);
}
*/
tls_keychain = keychain;
- tls_keypath = _cupsStrAlloc(path);
+ tls_keypath = _cupsStrAlloc(filename);
tls_auto_create = auto_create;
tls_common_name = _cupsStrAlloc(common_name);
return (1);
#else
- DEBUG_puts("1cupsSetServerCredentials: No keychain support compiled in, returning 0.");
- return (0);
-#endif /* HAVE_SECKEYCHAINOPEN */
+ if (path)
+ {
+ DEBUG_puts("1cupsSetServerCredentials: No keychain support compiled in, returning 0.");
+ return (0);
+ }
+
+ tls_auto_create = auto_create;
+ tls_common_name = _cupsStrAlloc(common_name);
+
+ return (1);
+#endif /* TARGET_OS_OSX */
}
* 'httpCopyCredentials()' - Copy the credentials associated with the peer in
* an encrypted connection.
*
- * @since CUPS 1.5/OS X 10.7@
+ * @since CUPS 1.5/macOS 10.7@
*/
int /* O - Status of call (0 = success) */
int i; /* Looping var */
- DEBUG_printf(("httpCopyCredentials(http=%p, credentials=%p)", http, credentials));
+ DEBUG_printf(("httpCopyCredentials(http=%p, credentials=%p)", (void *)http, (void *)credentials));
if (credentials)
*credentials = NULL;
}
-/*
- * 'http_cdsa_create_credential()' - Create a single credential in the internal format.
- */
-
-static SecCertificateRef /* O - Certificate */
-http_cdsa_create_credential(
- http_credential_t *credential) /* I - Credential */
-{
- if (!credential)
- return (NULL);
-
- return (SecCertificateCreateWithBytes(kCFAllocatorDefault, credential->data, (CFIndex)credential->datalen));
-}
-
-
/*
* '_httpCreateCredentials()' - Create credentials in the internal format.
*/
/*
* 'httpCredentialsAreValidForName()' - Return whether the credentials are valid for the given name.
*
- * @since CUPS 2.0@
+ * @since CUPS 2.0/macOS 10.10@
*/
int /* O - 1 if valid, 0 otherwise */
/*
* 'httpCredentialsGetTrust()' - Return the trust of credentials.
*
- * @since CUPS 2.0@
+ * @since CUPS 2.0/macOS 10.10@
*/
http_trust_t /* O - Level of trust */
if (!common_name)
+ {
+ _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No common name specified."), 1);
return (HTTP_TRUST_UNKNOWN);
+ }
if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL)
+ {
+ _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unable to create credentials from array."), 1);
return (HTTP_TRUST_UNKNOWN);
+ }
+
+ if (cg->any_root < 0)
+ _cupsSetDefaults();
/*
* Look this common name up in the default keychains...
* credentials and allow if the new ones have a later expiration...
*/
- if (httpCredentialsGetExpiration(credentials) <= httpCredentialsGetExpiration(tcreds) ||
- !httpCredentialsAreValidForName(credentials, common_name))
+ if (!cg->trust_first)
{
/*
- * Either the new credentials are not newly issued, or the common name
- * does not match the issued certificate...
+ * Do not trust certificates on first use...
*/
+ _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Trust on first use is disabled."), 1);
+
+ trust = HTTP_TRUST_INVALID;
+ }
+ else if (httpCredentialsGetExpiration(credentials) <= httpCredentialsGetExpiration(tcreds))
+ {
+ /*
+ * The new credentials are not newly issued...
+ */
+
+ _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("New credentials are older than stored credentials."), 1);
+
+ trust = HTTP_TRUST_INVALID;
+ }
+ else if (!httpCredentialsAreValidForName(credentials, common_name))
+ {
+ /*
+ * The common name does not match the issued certificate...
+ */
+
+ _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("New credentials are not valid for name."), 1);
+
trust = HTTP_TRUST_INVALID;
}
else if (httpCredentialsGetExpiration(tcreds) < time(NULL))
httpFreeCredentials(tcreds);
}
else if (cg->validate_certs && !httpCredentialsAreValidForName(credentials, common_name))
+ {
+ _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("No stored credentials, not valid for name."), 1);
trust = HTTP_TRUST_INVALID;
+ }
+ else if (!cg->trust_first)
+ {
+ /*
+ * See if we have a site CA certificate we can compare...
+ */
- if (!cg->expired_certs && !SecCertificateIsValid(secCert, CFAbsoluteTimeGetCurrent()))
+ if (!httpLoadCredentials(NULL, &tcreds, "site"))
+ {
+ if (cupsArrayCount(credentials) != (cupsArrayCount(tcreds) + 1))
+ {
+ /*
+ * Certificate isn't directly generated from the CA cert...
+ */
+
+ trust = HTTP_TRUST_INVALID;
+ }
+ else
+ {
+ /*
+ * Do a tail comparison of the two certificates...
+ */
+
+ http_credential_t *a, *b; /* Certificates */
+
+ for (a = (http_credential_t *)cupsArrayFirst(tcreds), b = (http_credential_t *)cupsArrayIndex(credentials, 1);
+ a && b;
+ a = (http_credential_t *)cupsArrayNext(tcreds), b = (http_credential_t *)cupsArrayNext(credentials))
+ if (a->datalen != b->datalen || memcmp(a->data, b->data, a->datalen))
+ break;
+
+ if (a || b)
+ trust = HTTP_TRUST_INVALID;
+ }
+
+ if (trust != HTTP_TRUST_OK)
+ _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Credentials do not validate against site CA certificate."), 1);
+ }
+ else
+ {
+ _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Trust on first use is disabled."), 1);
+ trust = HTTP_TRUST_INVALID;
+ }
+ }
+
+ if (trust == HTTP_TRUST_OK && !cg->expired_certs && !SecCertificateIsValid(secCert, CFAbsoluteTimeGetCurrent()))
+ {
+ _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Credentials have expired."), 1);
trust = HTTP_TRUST_EXPIRED;
- else if (!cg->any_root && cupsArrayCount(credentials) == 1)
+ }
+
+ if (trust == HTTP_TRUST_OK && !cg->any_root && cupsArrayCount(credentials) == 1)
+ {
+ _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Self-signed credentials are blocked."), 1);
trust = HTTP_TRUST_INVALID;
+ }
CFRelease(secCert);
/*
* 'httpCredentialsGetExpiration()' - Return the expiration date of the credentials.
*
- * @since CUPS 2.0@
+ * @since CUPS 2.0/macOS 10.10@
*/
time_t /* O - Expiration date of credentials */
/*
* 'httpCredentialsString()' - Return a string representing the credentials.
*
- * @since CUPS 2.0@
+ * @since CUPS 2.0/macOS 10.10@
*/
size_t /* O - Total size of credentials string */
SecCertificateRef secCert; /* Certificate reference */
- DEBUG_printf(("httpCredentialsString(credentials=%p, buffer=%p, bufsize=" CUPS_LLFMT ")", credentials, buffer, CUPS_LLCAST bufsize));
+ DEBUG_printf(("httpCredentialsString(credentials=%p, buffer=%p, bufsize=" CUPS_LLFMT ")", (void *)credentials, (void *)buffer, CUPS_LLCAST bufsize));
if (!buffer)
return (0);
if ((first = (http_credential_t *)cupsArrayFirst(credentials)) != NULL &&
(secCert = http_cdsa_create_credential(first)) != NULL)
{
- CFStringRef cf_name; /* CF common name string */
- char name[256]; /* Common name associated with cert */
+ /*
+ * Copy certificate (string) values from the SecCertificateRef and produce
+ * a one-line summary. The API for accessing certificate values like the
+ * issuer name is, um, "interesting"...
+ */
+
+# if TARGET_OS_OSX
+ CFDictionaryRef cf_dict; /* Dictionary for certificate */
+# endif /* TARGET_OS_OSX */
+ CFStringRef cf_string; /* CF string */
+ char commonName[256],/* Common name associated with cert */
+ issuer[256], /* Issuer name */
+ sigalg[256]; /* Signature algorithm */
time_t expiration; /* Expiration date of cert */
- _cups_md5_state_t md5_state; /* MD5 state */
unsigned char md5_digest[16]; /* MD5 result */
- if ((cf_name = SecCertificateCopySubjectSummary(secCert)) != NULL)
+ if (SecCertificateCopyCommonName(secCert, &cf_string) == noErr)
{
- CFStringGetCString(cf_name, name, (CFIndex)sizeof(name), kCFStringEncodingUTF8);
- CFRelease(cf_name);
+ CFStringGetCString(cf_string, commonName, (CFIndex)sizeof(commonName), kCFStringEncodingUTF8);
+ CFRelease(cf_string);
}
else
- strlcpy(name, "unknown", sizeof(name));
+ {
+ strlcpy(commonName, "unknown", sizeof(commonName));
+ }
+
+ strlcpy(issuer, "unknown", sizeof(issuer));
+ strlcpy(sigalg, "UnknownSignature", sizeof(sigalg));
+
+# if TARGET_OS_OSX
+ if ((cf_dict = SecCertificateCopyValues(secCert, NULL, NULL)) != NULL)
+ {
+ CFDictionaryRef cf_issuer = CFDictionaryGetValue(cf_dict, kSecOIDX509V1IssuerName);
+ CFDictionaryRef cf_sigalg = CFDictionaryGetValue(cf_dict, kSecOIDX509V1SignatureAlgorithm);
+
+ if (cf_issuer)
+ {
+ CFArrayRef cf_values = CFDictionaryGetValue(cf_issuer, kSecPropertyKeyValue);
+ CFIndex i, count = CFArrayGetCount(cf_values);
+ CFDictionaryRef cf_value;
+
+ for (i = 0; i < count; i ++)
+ {
+ cf_value = CFArrayGetValueAtIndex(cf_values, i);
+
+ if (!CFStringCompare(CFDictionaryGetValue(cf_value, kSecPropertyKeyLabel), kSecOIDOrganizationName, kCFCompareCaseInsensitive))
+ CFStringGetCString(CFDictionaryGetValue(cf_value, kSecPropertyKeyValue), issuer, (CFIndex)sizeof(issuer), kCFStringEncodingUTF8);
+ }
+ }
+
+ if (cf_sigalg)
+ {
+ CFArrayRef cf_values = CFDictionaryGetValue(cf_sigalg, kSecPropertyKeyValue);
+ CFIndex i, count = CFArrayGetCount(cf_values);
+ CFDictionaryRef cf_value;
+
+ for (i = 0; i < count; i ++)
+ {
+ cf_value = CFArrayGetValueAtIndex(cf_values, i);
+
+ if (!CFStringCompare(CFDictionaryGetValue(cf_value, kSecPropertyKeyLabel), CFSTR("Algorithm"), kCFCompareCaseInsensitive))
+ {
+ CFStringRef cf_algorithm = CFDictionaryGetValue(cf_value, kSecPropertyKeyValue);
+
+ if (!CFStringCompare(cf_algorithm, CFSTR("1.2.840.113549.1.1.5"), kCFCompareCaseInsensitive))
+ strlcpy(sigalg, "SHA1WithRSAEncryption", sizeof(sigalg));
+ else if (!CFStringCompare(cf_algorithm, CFSTR("1.2.840.113549.1.1.11"), kCFCompareCaseInsensitive))
+ strlcpy(sigalg, "SHA256WithRSAEncryption", sizeof(sigalg));
+ else if (!CFStringCompare(cf_algorithm, CFSTR("1.2.840.113549.1.1.4"), kCFCompareCaseInsensitive))
+ strlcpy(sigalg, "MD5WithRSAEncryption", sizeof(sigalg));
+ }
+ }
+ }
+
+ CFRelease(cf_dict);
+ }
+# endif /* TARGET_OS_OSX */
expiration = (time_t)(SecCertificateNotValidAfter(secCert) + kCFAbsoluteTimeIntervalSince1970);
- _cupsMD5Init(&md5_state);
- _cupsMD5Append(&md5_state, first->data, (int)first->datalen);
- _cupsMD5Finish(&md5_state, md5_digest);
+ cupsHashData("md5", first->data, first->datalen, md5_digest, sizeof(md5_digest));
- snprintf(buffer, bufsize, "%s / %s / %02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X", name, httpGetDateString(expiration), md5_digest[0], md5_digest[1], md5_digest[2], md5_digest[3], md5_digest[4], md5_digest[5], md5_digest[6], md5_digest[7], md5_digest[8], md5_digest[9], md5_digest[10], md5_digest[11], md5_digest[12], md5_digest[13], md5_digest[14], md5_digest[15]);
+ snprintf(buffer, bufsize, "%s (issued by %s) / %s / %s / %02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X", commonName, issuer, httpGetDateString(expiration), sigalg, md5_digest[0], md5_digest[1], md5_digest[2], md5_digest[3], md5_digest[4], md5_digest[5], md5_digest[6], md5_digest[7], md5_digest[8], md5_digest[9], md5_digest[10], md5_digest[11], md5_digest[12], md5_digest[13], md5_digest[14], md5_digest[15]);
CFRelease(secCert);
}
/*
* 'httpLoadCredentials()' - Load X.509 credentials from a keychain file.
*
- * @since CUPS 2.0@
+ * @since CUPS 2.0/OS 10.10@
*/
int /* O - 0 on success, -1 on error */
cups_array_t **credentials, /* IO - Credentials */
const char *common_name) /* I - Common name for credentials */
{
-#ifdef HAVE_SECKEYCHAINOPEN
OSStatus err; /* Error info */
+#if TARGET_OS_OSX
char filename[1024]; /* Filename for keychain */
- SecKeychainRef keychain = NULL;/* Keychain reference */
- SecIdentitySearchRef search = NULL; /* Search reference */
+ SecKeychainRef keychain = NULL,/* Keychain reference */
+ syschain = NULL;/* System keychain */
+ CFArrayRef list; /* Keychain list */
+#endif /* TARGET_OS_OSX */
SecCertificateRef cert = NULL; /* Certificate */
CFDataRef data; /* Certificate data */
SecPolicyRef policy = NULL; /* Policy ref */
CFStringRef cfcommon_name = NULL;
/* Server name */
CFMutableDictionaryRef query = NULL; /* Query qualifiers */
- CFArrayRef list = NULL; /* Keychain list */
- DEBUG_printf(("httpLoadCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, credentials, common_name));
+ DEBUG_printf(("httpLoadCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, (void *)credentials, common_name));
if (!credentials)
return (-1);
*credentials = NULL;
- if (!path)
- {
- const char *home = getenv("HOME"); /* HOME environment variable */
-
- if (getuid() && home)
- snprintf(filename, sizeof(filename), "%s/Library/Keychains/login.keychain", home);
- else
- strlcpy(filename, "/Library/Keychains/System.keychain", sizeof(filename));
+#if TARGET_OS_OSX
+ keychain = http_cdsa_open_keychain(path, filename, sizeof(filename));
- path = filename;
+ if (!keychain)
+ goto cleanup;
- DEBUG_printf(("1httpLoadCredentials: Using default path \"%s\".", path));
- }
+ syschain = http_cdsa_open_system_keychain();
- if ((err = SecKeychainOpen(path, &keychain)) != noErr)
- goto cleanup;
+#else
+ if (path)
+ return (-1);
+#endif /* TARGET_OS_OSX */
cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8);
if (!(query = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks)))
goto cleanup;
- list = CFArrayCreate(kCFAllocatorDefault, (const void **)&keychain, 1, &kCFTypeArrayCallBacks);
-
CFDictionaryAddValue(query, kSecClass, kSecClassCertificate);
CFDictionaryAddValue(query, kSecMatchPolicy, policy);
CFDictionaryAddValue(query, kSecReturnRef, kCFBooleanTrue);
CFDictionaryAddValue(query, kSecMatchLimit, kSecMatchLimitOne);
- CFDictionaryAddValue(query, kSecMatchSearchList, list);
+#if TARGET_OS_OSX
+ if (syschain)
+ {
+ const void *values[2] = { syschain, keychain };
+
+ list = CFArrayCreate(kCFAllocatorDefault, (const void **)values, 2, &kCFTypeArrayCallBacks);
+ }
+ else
+ list = CFArrayCreate(kCFAllocatorDefault, (const void **)&keychain, 1, &kCFTypeArrayCallBacks);
+ CFDictionaryAddValue(query, kSecMatchSearchList, list);
CFRelease(list);
+#endif /* TARGET_OS_OSX */
err = SecItemCopyMatching(query, (CFTypeRef *)&cert);
cleanup :
+#if TARGET_OS_OSX
if (keychain)
CFRelease(keychain);
- if (search)
- CFRelease(search);
+
+ if (syschain)
+ CFRelease(syschain);
+#endif /* TARGET_OS_OSX */
if (cert)
CFRelease(cert);
if (policy)
if (query)
CFRelease(query);
- DEBUG_printf(("1httpLoadCredentials: Returning %d.", *credentials ? 0 : -1));
-
- return (*credentials ? 0 : -1);
-
-#else
- (void)path;
- (void)credentials;
- (void)common_name;
-
- return (-1);
-#endif /* HAVE_SECKEYCHAINOPEN */
+ DEBUG_printf(("1httpLoadCredentials: Returning %d.", *credentials ? 0 : -1));
+
+ return (*credentials ? 0 : -1);
}
/*
* 'httpSaveCredentials()' - Save X.509 credentials to a keychain file.
*
- * @since CUPS 2.0@
+ * @since CUPS 2.0/OS 10.10@
*/
int /* O - -1 on error, 0 on success */
cups_array_t *credentials, /* I - Credentials */
const char *common_name) /* I - Common name for credentials */
{
-#ifdef HAVE_SECKEYCHAINOPEN
int ret = -1; /* Return value */
OSStatus err; /* Error info */
+#if TARGET_OS_OSX
char filename[1024]; /* Filename for keychain */
SecKeychainRef keychain = NULL;/* Keychain reference */
- SecIdentitySearchRef search = NULL; /* Search reference */
+ CFArrayRef list; /* Keychain list */
+#endif /* TARGET_OS_OSX */
SecCertificateRef cert = NULL; /* Certificate */
CFMutableDictionaryRef attrs = NULL; /* Attributes for add */
- CFArrayRef list = NULL; /* Keychain list */
- DEBUG_printf(("httpSaveCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, credentials, common_name));
+ DEBUG_printf(("httpSaveCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, (void *)credentials, common_name));
if (!credentials)
goto cleanup;
goto cleanup;
}
- if (!path)
- {
- const char *home = getenv("HOME"); /* HOME environment variable */
-
- if (getuid() && home)
- snprintf(filename, sizeof(filename), "%s/Library/Keychains/login.keychain", home);
- else
- strlcpy(filename, "/Library/Keychains/System.keychain", sizeof(filename));
-
- path = filename;
-
- DEBUG_printf(("1httpSaveCredentials: Using default path \"%s\".", path));
- }
+#if TARGET_OS_OSX
+ keychain = http_cdsa_open_keychain(path, filename, sizeof(filename));
- if ((err = SecKeychainOpen(path, &keychain)) != noErr)
- {
- DEBUG_printf(("1httpSaveCredentials: SecKeychainOpen returned %d.", (int)err));
+ if (!keychain)
goto cleanup;
- }
- if ((list = CFArrayCreate(kCFAllocatorDefault, (const void **)&keychain, 1, &kCFTypeArrayCallBacks)) == NULL)
- {
- DEBUG_puts("1httpSaveCredentials: Unable to create list of keychains.");
- goto cleanup;
- }
+#else
+ if (path)
+ return (-1);
+#endif /* TARGET_OS_OSX */
if ((attrs = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks)) == NULL)
{
CFDictionaryAddValue(attrs, kSecClass, kSecClassCertificate);
CFDictionaryAddValue(attrs, kSecValueRef, cert);
+
+#if TARGET_OS_OSX
+ if ((list = CFArrayCreate(kCFAllocatorDefault, (const void **)&keychain, 1, &kCFTypeArrayCallBacks)) == NULL)
+ {
+ DEBUG_puts("1httpSaveCredentials: Unable to create list of keychains.");
+ goto cleanup;
+ }
CFDictionaryAddValue(attrs, kSecMatchSearchList, list);
+ CFRelease(list);
+#endif /* TARGET_OS_OSX */
/* Note: SecItemAdd consumes "attrs"... */
err = SecItemAdd(attrs, NULL);
cleanup :
- if (list)
- CFRelease(list);
+#if TARGET_OS_OSX
if (keychain)
CFRelease(keychain);
- if (search)
- CFRelease(search);
+#endif /* TARGET_OS_OSX */
if (cert)
CFRelease(cert);
DEBUG_printf(("1httpSaveCredentials: Returning %d.", ret));
return (ret);
-
-#else
- (void)path;
- (void)credentials;
- (void)common_name;
-
- return (-1);
-#endif /* HAVE_SECKEYCHAINOPEN */
}
}
+/*
+ * '_httpTLSSetOptions()' - Set TLS protocol and cipher suite options.
+ */
+
+void
+_httpTLSSetOptions(int options, /* I - Options */
+ int min_version, /* I - Minimum TLS version */
+ int max_version) /* I - Maximum TLS version */
+{
+ if (!(options & _HTTP_TLS_SET_DEFAULT) || tls_options < 0)
+ {
+ tls_options = options;
+ tls_min_version = min_version;
+ tls_max_version = max_version;
+ }
+}
+
+
/*
* '_httpTLSStart()' - Set up SSL/TLS support on a connection.
*/
/* Pointer to library globals */
OSStatus error; /* Error code */
const char *message = NULL;/* Error message */
+ char msgbuf[1024]; /* Error message buffer */
cups_array_t *credentials; /* Credentials array */
cups_array_t *names; /* CUPS distinguished names */
CFArrayRef dn_array; /* CF distinguished names array */
http_credential_t *credential; /* Credential data */
- DEBUG_printf(("7_httpTLSStart(http=%p)", http));
+ DEBUG_printf(("3_httpTLSStart(http=%p)", (void *)http));
+
+ if (tls_options < 0)
+ {
+ DEBUG_puts("4_httpTLSStart: Setting defaults.");
+ _cupsSetDefaults();
+ DEBUG_printf(("4_httpTLSStart: tls_options=%x, tls_min_version=%d, tls_max_version=%d", tls_options, tls_min_version, tls_max_version));
+ }
-#ifdef HAVE_SECKEYCHAINOPEN
+#if TARGET_OS_OSX
if (http->mode == _HTTP_MODE_SERVER && !tls_keychain)
-#else
- if (http->mode == _HTTP_MODE_SERVER)
-#endif /* HAVE_SECKEYCHAINOPEN */
{
DEBUG_puts("4_httpTLSStart: cupsSetServerCredentials not called.");
http->error = errno = EINVAL;
return (-1);
}
+#endif /* TARGET_OS_OSX */
if ((http->tls = SSLCreateContext(kCFAllocatorDefault, http->mode == _HTTP_MODE_CLIENT ? kSSLClientSide : kSSLServerSide, kSSLStreamType)) == NULL)
{
{
error = SSLSetSessionOption(http->tls, kSSLSessionOptionBreakOnServerAuth,
true);
- DEBUG_printf(("4_httpTLSStart: SSLSetSessionOption, error=%d",
- (int)error));
+ DEBUG_printf(("4_httpTLSStart: SSLSetSessionOption, error=%d", (int)error));
+ }
+
+ if (!error)
+ {
+ static const SSLProtocol protocols[] = /* Min/max protocol versions */
+ {
+ kSSLProtocol3,
+ kTLSProtocol1,
+ kTLSProtocol11,
+ kTLSProtocol12,
+ kTLSProtocol13
+ };
+
+ if (tls_min_version < _HTTP_TLS_MAX)
+ {
+ error = SSLSetProtocolVersionMin(http->tls, protocols[tls_min_version]);
+ DEBUG_printf(("4_httpTLSStart: SSLSetProtocolVersionMin(%d), error=%d", protocols[tls_min_version], (int)error));
+ }
+
+ if (!error && tls_max_version < _HTTP_TLS_MAX)
+ {
+ error = SSLSetProtocolVersionMax(http->tls, protocols[tls_max_version]);
+ DEBUG_printf(("4_httpTLSStart: SSLSetProtocolVersionMax(%d), error=%d", protocols[tls_max_version], (int)error));
+ }
+ }
+
+ if (!error)
+ {
+ SSLCipherSuite supported[100]; /* Supported cipher suites */
+ size_t num_supported; /* Number of supported cipher suites */
+ SSLCipherSuite enabled[100]; /* Cipher suites to enable */
+ size_t num_enabled; /* Number of cipher suites to enable */
+
+ num_supported = sizeof(supported) / sizeof(supported[0]);
+ error = SSLGetSupportedCiphers(http->tls, supported, &num_supported);
+
+ if (!error)
+ {
+ DEBUG_printf(("4_httpTLSStart: %d cipher suites supported.", (int)num_supported));
+
+ for (i = 0, num_enabled = 0; i < (int)num_supported && num_enabled < (sizeof(enabled) / sizeof(enabled[0])); i ++)
+ {
+ switch (supported[i])
+ {
+ /* Obviously insecure cipher suites that we never want to use */
+ case SSL_NULL_WITH_NULL_NULL :
+ case SSL_RSA_WITH_NULL_MD5 :
+ case SSL_RSA_WITH_NULL_SHA :
+ case SSL_RSA_EXPORT_WITH_RC4_40_MD5 :
+ case SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5 :
+ case SSL_RSA_EXPORT_WITH_DES40_CBC_SHA :
+ case SSL_RSA_WITH_DES_CBC_SHA :
+ case SSL_DH_DSS_EXPORT_WITH_DES40_CBC_SHA :
+ case SSL_DH_DSS_WITH_DES_CBC_SHA :
+ case SSL_DH_RSA_EXPORT_WITH_DES40_CBC_SHA :
+ case SSL_DH_RSA_WITH_DES_CBC_SHA :
+ case SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA :
+ case SSL_DHE_DSS_WITH_DES_CBC_SHA :
+ case SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA :
+ case SSL_DHE_RSA_WITH_DES_CBC_SHA :
+ case SSL_DH_anon_EXPORT_WITH_RC4_40_MD5 :
+ case SSL_DH_anon_WITH_RC4_128_MD5 :
+ case SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA :
+ case SSL_DH_anon_WITH_DES_CBC_SHA :
+ case SSL_DH_anon_WITH_3DES_EDE_CBC_SHA :
+ case SSL_FORTEZZA_DMS_WITH_NULL_SHA :
+ case TLS_DH_anon_WITH_AES_128_CBC_SHA :
+ case TLS_DH_anon_WITH_AES_256_CBC_SHA :
+ case TLS_ECDH_ECDSA_WITH_NULL_SHA :
+ case TLS_ECDHE_RSA_WITH_NULL_SHA :
+ case TLS_ECDH_anon_WITH_NULL_SHA :
+ case TLS_ECDH_anon_WITH_RC4_128_SHA :
+ case TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA :
+ case TLS_ECDH_anon_WITH_AES_128_CBC_SHA :
+ case TLS_ECDH_anon_WITH_AES_256_CBC_SHA :
+ case TLS_RSA_WITH_NULL_SHA256 :
+ case TLS_DH_anon_WITH_AES_128_CBC_SHA256 :
+ case TLS_DH_anon_WITH_AES_256_CBC_SHA256 :
+ case TLS_PSK_WITH_NULL_SHA :
+ case TLS_DHE_PSK_WITH_NULL_SHA :
+ case TLS_RSA_PSK_WITH_NULL_SHA :
+ case TLS_DH_anon_WITH_AES_128_GCM_SHA256 :
+ case TLS_DH_anon_WITH_AES_256_GCM_SHA384 :
+ case TLS_PSK_WITH_NULL_SHA256 :
+ case TLS_PSK_WITH_NULL_SHA384 :
+ case TLS_DHE_PSK_WITH_NULL_SHA256 :
+ case TLS_DHE_PSK_WITH_NULL_SHA384 :
+ case TLS_RSA_PSK_WITH_NULL_SHA256 :
+ case TLS_RSA_PSK_WITH_NULL_SHA384 :
+ case SSL_RSA_WITH_DES_CBC_MD5 :
+ DEBUG_printf(("4_httpTLSStart: Excluding insecure cipher suite %d", supported[i]));
+ break;
+
+ /* RC4 cipher suites that should only be used as a last resort */
+ case SSL_RSA_WITH_RC4_128_MD5 :
+ case SSL_RSA_WITH_RC4_128_SHA :
+ case TLS_ECDH_ECDSA_WITH_RC4_128_SHA :
+ case TLS_ECDHE_ECDSA_WITH_RC4_128_SHA :
+ case TLS_ECDH_RSA_WITH_RC4_128_SHA :
+ case TLS_ECDHE_RSA_WITH_RC4_128_SHA :
+ case TLS_PSK_WITH_RC4_128_SHA :
+ case TLS_DHE_PSK_WITH_RC4_128_SHA :
+ case TLS_RSA_PSK_WITH_RC4_128_SHA :
+ if (tls_options & _HTTP_TLS_ALLOW_RC4)
+ enabled[num_enabled ++] = supported[i];
+ else
+ DEBUG_printf(("4_httpTLSStart: Excluding RC4 cipher suite %d", supported[i]));
+ break;
+
+ /* DH/DHE cipher suites that are problematic with parameters < 1024 bits */
+ case TLS_DH_DSS_WITH_AES_128_CBC_SHA :
+ case TLS_DH_RSA_WITH_AES_128_CBC_SHA :
+ case TLS_DHE_DSS_WITH_AES_128_CBC_SHA :
+ case TLS_DHE_RSA_WITH_AES_128_CBC_SHA :
+ case TLS_DH_DSS_WITH_AES_256_CBC_SHA :
+ case TLS_DH_RSA_WITH_AES_256_CBC_SHA :
+ case TLS_DHE_DSS_WITH_AES_256_CBC_SHA :
+ case TLS_DHE_RSA_WITH_AES_256_CBC_SHA :
+ case TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA :
+ case TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA :
+ case TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA :
+ case TLS_DH_DSS_WITH_AES_128_CBC_SHA256 :
+ case TLS_DH_RSA_WITH_AES_128_CBC_SHA256 :
+ case TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 :
+ case TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 :
+ case TLS_DH_DSS_WITH_AES_256_CBC_SHA256 :
+ case TLS_DH_RSA_WITH_AES_256_CBC_SHA256 :
+ case TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 :
+ case TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 :
+ case TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA :
+ case TLS_DHE_PSK_WITH_AES_128_CBC_SHA :
+ case TLS_DHE_PSK_WITH_AES_256_CBC_SHA :
+ case TLS_DHE_PSK_WITH_AES_128_CBC_SHA256 :
+ case TLS_DHE_PSK_WITH_AES_256_CBC_SHA384 :
+ if (tls_options & _HTTP_TLS_DENY_CBC)
+ {
+ DEBUG_printf(("4_httpTLSStart: Excluding CBC cipher suite %d", supported[i]));
+ break;
+ }
+
+// case TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 :
+// case TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 :
+ case TLS_DH_RSA_WITH_AES_128_GCM_SHA256 :
+ case TLS_DH_RSA_WITH_AES_256_GCM_SHA384 :
+// case TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 :
+// case TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 :
+ case TLS_DH_DSS_WITH_AES_128_GCM_SHA256 :
+ case TLS_DH_DSS_WITH_AES_256_GCM_SHA384 :
+ case TLS_DHE_PSK_WITH_AES_128_GCM_SHA256 :
+ case TLS_DHE_PSK_WITH_AES_256_GCM_SHA384 :
+ if (tls_options & _HTTP_TLS_ALLOW_DH)
+ enabled[num_enabled ++] = supported[i];
+ else
+ DEBUG_printf(("4_httpTLSStart: Excluding DH/DHE cipher suite %d", supported[i]));
+ break;
+
+ case TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA :
+ case TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 :
+ case TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 :
+ case TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256 :
+ case TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 :
+ case TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 :
+ case TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 :
+ case TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256 :
+ case TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 :
+ case TLS_RSA_WITH_3DES_EDE_CBC_SHA :
+ case TLS_RSA_WITH_AES_128_CBC_SHA :
+ case TLS_RSA_WITH_AES_256_CBC_SHA :
+ if (tls_options & _HTTP_TLS_DENY_CBC)
+ {
+ DEBUG_printf(("4_httpTLSStart: Excluding CBC cipher suite %d", supported[i]));
+ break;
+ }
+
+ /* Anything else we'll assume is "secure" */
+ default :
+ enabled[num_enabled ++] = supported[i];
+ break;
+ }
+ }
+
+ DEBUG_printf(("4_httpTLSStart: %d cipher suites enabled.", (int)num_enabled));
+ error = SSLSetEnabledCiphers(http->tls, enabled, num_enabled);
+ }
}
if (!error && http->mode == _HTTP_MODE_CLIENT)
* Server: find/create a certificate for TLS...
*/
- if (http->fields[HTTP_FIELD_HOST][0])
+ if (http->fields[HTTP_FIELD_HOST])
{
/*
* Use hostname for TLS upgrade...
}
}
-#ifdef HAVE_SECKEYCHAINOPEN
if (isdigit(hostname[0] & 255) || hostname[0] == '[')
hostname[0] = '\0'; /* Don't allow numeric addresses */
http->tls_credentials = http_cdsa_copy_server(hostname[0] ? hostname : tls_common_name);
}
-#endif /* HAVE_SECKEYCHAINOPEN */
if (!http->tls_credentials)
{
DEBUG_printf(("4_httpTLSStart: SSLSetCertificate, error=%d", (int)error));
}
- DEBUG_printf(("4_httpTLSStart: tls_credentials=%p", http->tls_credentials));
+ DEBUG_printf(("4_httpTLSStart: tls_credentials=%p", (void *)http->tls_credentials));
/*
* Let the server know which hostname/domain we are trying to connect to
if (!error)
{
- int done = 0; /* Are we done yet? */
+ int done = 0; /* Are we done yet? */
+ double old_timeout; /* Old timeout value */
+ http_timeout_cb_t old_cb; /* Old timeout callback */
+ void *old_data; /* Old timeout data */
+
+ /*
+ * Enforce a minimum timeout of 10 seconds for the TLS handshake...
+ */
+
+ old_timeout = http->timeout_value;
+ old_cb = http->timeout_cb;
+ old_data = http->timeout_data;
+
+ if (!old_cb || old_timeout < 10.0)
+ {
+ DEBUG_puts("4_httpTLSStart: Setting timeout to 10 seconds.");
+ httpSetTimeout(http, 10.0, NULL, NULL);
+ }
+
+ /*
+ * Do the TLS handshake...
+ */
while (!error && !done)
{
break;
}
}
+
+ /*
+ * Restore the previous timeout settings...
+ */
+
+ httpSetTimeout(http, old_timeout, old_cb, old_data);
}
if (error)
*/
if (!message)
-#ifdef HAVE_CSSMERRORSTRING
- message = cssmErrorString(error);
-#else
- message = _("Unable to establish a secure connection to host.");
-#endif /* HAVE_CSSMERRORSTRING */
+ {
+ if (!cg->lang_default)
+ cg->lang_default = cupsLangDefault();
+
+ snprintf(msgbuf, sizeof(msgbuf), _cupsLangString(cg->lang_default, _("Unable to establish a secure connection to host (%d).")), error);
+ message = msgbuf;
+ }
_cupsSetError(IPP_STATUS_ERROR_CUPS_PKI, message, 1);
size_t processed; /* Number of bytes processed */
- DEBUG_printf(("2_httpTLSWrite(http=%p, buf=%p, len=%d)", http, buf, len));
+ DEBUG_printf(("2_httpTLSWrite(http=%p, buf=%p, len=%d)", (void *)http, (void *)buf, len));
error = SSLWrite(http->tls, buf, (size_t)len, &processed);
}
-#ifdef HAVE_SECKEYCHAINOPEN
/*
* 'http_cdsa_copy_server()' - Find and copy server credentials from the keychain.
*/
http_cdsa_copy_server(
const char *common_name) /* I - Server's hostname */
{
+#if TARGET_OS_OSX
OSStatus err; /* Error info */
- SecIdentitySearchRef search = NULL; /* Search reference */
SecIdentityRef identity = NULL;/* Identity */
CFArrayRef certificates = NULL;
/* Certificate array */
/* Server name */
CFMutableDictionaryRef query = NULL; /* Query qualifiers */
CFArrayRef list = NULL; /* Keychain list */
+ SecKeychainRef syschain = NULL;/* System keychain */
+ SecKeychainStatus status = 0; /* Keychain status */
+ DEBUG_printf(("3http_cdsa_copy_server(common_name=\"%s\")", common_name));
+
cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8);
policy = SecPolicyCreateSSL(1, cfcommon_name);
- if (cfcommon_name)
- CFRelease(cfcommon_name);
-
if (!policy)
+ {
+ DEBUG_puts("4http_cdsa_copy_server: Unable to create SSL policy.");
goto cleanup;
+ }
if (!(query = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks)))
+ {
+ DEBUG_puts("4http_cdsa_copy_server: Unable to create query dictionary.");
goto cleanup;
+ }
_cupsMutexLock(&tls_mutex);
- list = CFArrayCreate(kCFAllocatorDefault, (const void **)&tls_keychain, 1, &kCFTypeArrayCallBacks);
+ err = SecKeychainGetStatus(tls_keychain, &status);
+
+ if (err == noErr && !(status & kSecUnlockStateStatus) && tls_cups_keychain)
+ SecKeychainUnlock(tls_keychain, _CUPS_CDSA_PASSLEN, _CUPS_CDSA_PASSWORD, TRUE);
CFDictionaryAddValue(query, kSecClass, kSecClassIdentity);
CFDictionaryAddValue(query, kSecMatchPolicy, policy);
CFDictionaryAddValue(query, kSecReturnRef, kCFBooleanTrue);
CFDictionaryAddValue(query, kSecMatchLimit, kSecMatchLimitOne);
- CFDictionaryAddValue(query, kSecMatchSearchList, list);
+ syschain = http_cdsa_open_system_keychain();
+
+ if (syschain)
+ {
+ const void *values[2] = { syschain, tls_keychain };
+
+ list = CFArrayCreate(kCFAllocatorDefault, (const void **)values, 2, &kCFTypeArrayCallBacks);
+ }
+ else
+ list = CFArrayCreate(kCFAllocatorDefault, (const void **)&tls_keychain, 1, &kCFTypeArrayCallBacks);
+
+ CFDictionaryAddValue(query, kSecMatchSearchList, list);
CFRelease(list);
err = SecItemCopyMatching(query, (CFTypeRef *)&identity);
_cupsMutexUnlock(&tls_mutex);
- if (err)
+ if (err != noErr)
+ {
+ DEBUG_printf(("4http_cdsa_copy_server: SecItemCopyMatching failed with status %d.", (int)err));
goto cleanup;
+ }
if (CFGetTypeID(identity) != SecIdentityGetTypeID())
+ {
+ DEBUG_puts("4http_cdsa_copy_server: Search returned something that is not an identity.");
goto cleanup;
+ }
if ((certificates = CFArrayCreate(NULL, (const void **)&identity, 1, &kCFTypeArrayCallBacks)) == NULL)
+ {
+ DEBUG_puts("4http_cdsa_copy_server: Unable to create array of certificates.");
goto cleanup;
+ }
cleanup :
- if (search)
- CFRelease(search);
+ if (syschain)
+ CFRelease(syschain);
if (identity)
CFRelease(identity);
-
if (policy)
CFRelease(policy);
+ if (cfcommon_name)
+ CFRelease(cfcommon_name);
if (query)
CFRelease(query);
+ DEBUG_printf(("4http_cdsa_copy_server: Returning %p.", (void *)certificates));
+
return (certificates);
+#else
+
+ (void)common_name;
+
+ if (!tls_selfsigned)
+ return (NULL);
+
+ return (CFArrayCreate(NULL, (const void **)&tls_selfsigned, 1, &kCFTypeArrayCallBacks));
+#endif /* TARGET_OS_OSX */
+}
+
+
+/*
+ * 'http_cdsa_create_credential()' - Create a single credential in the internal format.
+ */
+
+static SecCertificateRef /* O - Certificate */
+http_cdsa_create_credential(
+ http_credential_t *credential) /* I - Credential */
+{
+ SecCertificateRef cert; /* Certificate */
+ CFDataRef data; /* Data object */
+
+
+ if (!credential)
+ return (NULL);
+
+ data = CFDataCreate(kCFAllocatorDefault, credential->data, (CFIndex)credential->datalen);
+ cert = SecCertificateCreateWithData(kCFAllocatorDefault, data);
+ CFRelease(data);
+
+ return (cert);
+}
+
+
+#if TARGET_OS_OSX
+/*
+ * 'http_cdsa_default_path()' - Get the default keychain path.
+ */
+
+static const char * /* O - Keychain path */
+http_cdsa_default_path(char *buffer, /* I - Path buffer */
+ size_t bufsize) /* I - Size of buffer */
+{
+ const char *home = getenv("HOME"); /* HOME environment variable */
+
+
+ /*
+ * Determine the default keychain path. Note that the login and system
+ * keychains are no longer accessible to user applications starting in macOS
+ * 10.11.4 (!), so we need to create our own keychain just for CUPS.
+ */
+
+ if (getuid() && home)
+ snprintf(buffer, bufsize, "%s/.cups/ssl.keychain", home);
+ else
+ strlcpy(buffer, "/etc/cups/ssl.keychain", bufsize);
+
+ DEBUG_printf(("1http_cdsa_default_path: Using default path \"%s\".", buffer));
+
+ return (buffer);
+}
+
+
+/*
+ * 'http_cdsa_open_keychain()' - Open (or create) a keychain.
+ */
+
+static SecKeychainRef /* O - Keychain or NULL */
+http_cdsa_open_keychain(
+ const char *path, /* I - Path to keychain */
+ char *filename, /* I - Keychain filename */
+ size_t filesize) /* I - Size of filename buffer */
+{
+ SecKeychainRef keychain = NULL;/* Temporary keychain */
+ OSStatus err; /* Error code */
+ Boolean interaction; /* Interaction allowed? */
+ SecKeychainStatus status = 0; /* Keychain status */
+
+
+ /*
+ * Get the keychain filename...
+ */
+
+ if (!path)
+ {
+ path = http_cdsa_default_path(filename, filesize);
+ tls_cups_keychain = 1;
+ }
+ else
+ {
+ strlcpy(filename, path, filesize);
+ tls_cups_keychain = 0;
+ }
+
+ /*
+ * Save the interaction setting and disable while we open the keychain...
+ */
+
+ SecKeychainGetUserInteractionAllowed(&interaction);
+ SecKeychainSetUserInteractionAllowed(FALSE);
+
+ if (access(path, R_OK) && tls_cups_keychain)
+ {
+ /*
+ * Create a new keychain at the given path...
+ */
+
+ err = SecKeychainCreate(path, _CUPS_CDSA_PASSLEN, _CUPS_CDSA_PASSWORD, FALSE, NULL, &keychain);
+ }
+ else
+ {
+ /*
+ * Open the existing keychain and unlock as needed...
+ */
+
+ err = SecKeychainOpen(path, &keychain);
+
+ if (err == noErr)
+ err = SecKeychainGetStatus(keychain, &status);
+
+ if (err == noErr && !(status & kSecUnlockStateStatus) && tls_cups_keychain)
+ err = SecKeychainUnlock(keychain, _CUPS_CDSA_PASSLEN, _CUPS_CDSA_PASSWORD, TRUE);
+ }
+
+ /*
+ * Restore interaction setting...
+ */
+
+ SecKeychainSetUserInteractionAllowed(interaction);
+
+ /*
+ * Release the keychain if we had any errors...
+ */
+
+ if (err != noErr)
+ {
+ /* TODO: Set cups last error string */
+ DEBUG_printf(("4http_cdsa_open_keychain: Unable to open keychain (%d), returning NULL.", (int)err));
+
+ if (keychain)
+ {
+ CFRelease(keychain);
+ keychain = NULL;
+ }
+ }
+
+ /*
+ * Return the keychain or NULL...
+ */
+
+ return (keychain);
+}
+
+
+/*
+ * 'http_cdsa_open_system_keychain()' - Open the System keychain.
+ */
+
+static SecKeychainRef
+http_cdsa_open_system_keychain(void)
+{
+ SecKeychainRef keychain = NULL;/* Temporary keychain */
+ OSStatus err; /* Error code */
+ Boolean interaction; /* Interaction allowed? */
+ SecKeychainStatus status = 0; /* Keychain status */
+
+
+ /*
+ * Save the interaction setting and disable while we open the keychain...
+ */
+
+ SecKeychainGetUserInteractionAllowed(&interaction);
+ SecKeychainSetUserInteractionAllowed(TRUE);
+
+ err = SecKeychainOpen("/Library/Keychains/System.keychain", &keychain);
+
+ if (err == noErr)
+ err = SecKeychainGetStatus(keychain, &status);
+
+ if (err == noErr && !(status & kSecUnlockStateStatus))
+ err = errSecInteractionNotAllowed;
+
+ /*
+ * Restore interaction setting...
+ */
+
+ SecKeychainSetUserInteractionAllowed(interaction);
+
+ /*
+ * Release the keychain if we had any errors...
+ */
+
+ if (err != noErr)
+ {
+ /* TODO: Set cups last error string */
+ DEBUG_printf(("4http_cdsa_open_system_keychain: Unable to open keychain (%d), returning NULL.", (int)err));
+
+ if (keychain)
+ {
+ CFRelease(keychain);
+ keychain = NULL;
+ }
+ }
+
+ /*
+ * Return the keychain or NULL...
+ */
+
+ return (keychain);
}
-#endif /* HAVE_SECKEYCHAINOPEN */
+#endif /* TARGET_OS_OSX */
/*
http = (http_t *)connection;
- if (!http->blocking)
+ if (!http->blocking || http->timeout_value > 0.0)
{
/*
* Make sure we have data before we read...
/* TLS credentials */
- DEBUG_printf(("7http_tls_set_credentials(%p)", http));
+ DEBUG_printf(("7http_tls_set_credentials(%p)", (void *)http));
/*
* Prefer connection specific credentials...
return (result);
}
-
-
-/*
- * End of "$Id$".
- */
projects / thirdparty / cups.git / blobdiff