2 * TLS support code for CUPS on macOS.
4 * Copyright © 2007-2018 by Apple Inc.
5 * Copyright © 1997-2007 by Easy Software Products, all rights reserved.
7 * Licensed under Apache License v2.0. See the file "LICENSE" for more information.
10 /**** This file is included from tls.c ****/
13 * Include necessary headers...
18 extern char **environ
;
21 #ifdef HAVE_SECURETRANSPORTPRIV_H
22 # include <Security/SecureTransportPriv.h>
23 #endif /* HAVE_SECURETRANSPORTPRIV_H */
24 #ifdef HAVE_SECBASEPRIV_H
25 # include <Security/SecBasePriv.h>
26 #endif /* HAVE_SECBASEPRIV_H */
27 #ifdef HAVE_SECCERTIFICATEPRIV_H
28 # include <Security/SecCertificatePriv.h>
30 # ifndef _SECURITY_VERSION_GREATER_THAN_57610_
31 typedef CF_OPTIONS(uint32_t, SecKeyUsage
) {
32 kSecKeyUsageAll
= 0x7FFFFFFF
34 # endif /* !_SECURITY_VERSION_GREATER_THAN_57610_ */
35 extern const void * kSecCSRChallengePassword
;
36 extern const void * kSecSubjectAltName
;
37 extern const void * kSecCertificateKeyUsage
;
38 extern const void * kSecCSRBasicContraintsPathLen
;
39 extern const void * kSecCertificateExtensions
;
40 extern const void * kSecCertificateExtensionsEncoded
;
41 extern const void * kSecOidCommonName
;
42 extern const void * kSecOidCountryName
;
43 extern const void * kSecOidStateProvinceName
;
44 extern const void * kSecOidLocalityName
;
45 extern const void * kSecOidOrganization
;
46 extern const void * kSecOidOrganizationalUnit
;
47 extern SecCertificateRef
SecCertificateCreateWithBytes(CFAllocatorRef allocator
, const UInt8
*bytes
, CFIndex length
);
48 extern bool SecCertificateIsValid(SecCertificateRef certificate
, CFAbsoluteTime verifyTime
);
49 extern CFAbsoluteTime
SecCertificateNotValidAfter(SecCertificateRef certificate
);
50 extern SecCertificateRef
SecGenerateSelfSignedCertificate(CFArrayRef subject
, CFDictionaryRef parameters
, SecKeyRef publicKey
, SecKeyRef privateKey
);
51 extern SecIdentityRef
SecIdentityCreate(CFAllocatorRef allocator
, SecCertificateRef certificate
, SecKeyRef privateKey
);
52 #endif /* HAVE_SECCERTIFICATEPRIV_H */
53 #ifdef HAVE_SECITEMPRIV_H
54 # include <Security/SecItemPriv.h>
55 #endif /* HAVE_SECITEMPRIV_H */
56 #ifdef HAVE_SECIDENTITYSEARCHPRIV_H
57 # include <Security/SecIdentitySearchPriv.h>
58 #endif /* HAVE_SECIDENTITYSEARCHPRIV_H */
59 #ifdef HAVE_SECPOLICYPRIV_H
60 # include <Security/SecPolicyPriv.h>
61 #endif /* HAVE_SECPOLICYPRIV_H */
65 * Constants, very secure stuff...
68 #define _CUPS_CDSA_PASSWORD "42" /* CUPS keychain password */
69 #define _CUPS_CDSA_PASSLEN 2 /* Length of keychain password */
76 static int tls_auto_create
= 0;
77 /* Auto-create self-signed certs? */
78 static char *tls_common_name
= NULL
;
79 /* Default common name */
80 #ifdef HAVE_SECKEYCHAINOPEN
81 static int tls_cups_keychain
= 0;
82 /* Opened the CUPS keychain? */
83 static SecKeychainRef tls_keychain
= NULL
;
84 /* Server cert keychain */
86 static SecIdentityRef tls_selfsigned
= NULL
;
87 /* Temporary self-signed cert */
88 #endif /* HAVE_SECKEYCHAINOPEN */
89 static char *tls_keypath
= NULL
;
90 /* Server cert keychain path */
91 static _cups_mutex_t tls_mutex
= _CUPS_MUTEX_INITIALIZER
;
92 /* Mutex for keychain/certs */
93 static int tls_options
= -1,/* Options for TLS connections */
94 tls_min_version
= _HTTP_TLS_1_0
,
95 tls_max_version
= _HTTP_TLS_MAX
;
102 static CFArrayRef
http_cdsa_copy_server(const char *common_name
);
103 static SecCertificateRef
http_cdsa_create_credential(http_credential_t
*credential
);
104 #ifdef HAVE_SECKEYCHAINOPEN
105 static const char *http_cdsa_default_path(char *buffer
, size_t bufsize
);
106 static SecKeychainRef
http_cdsa_open_keychain(const char *path
, char *filename
, size_t filesize
);
107 static SecKeychainRef
http_cdsa_open_system_keychain(void);
108 #endif /* HAVE_SECKEYCHAINOPEN */
109 static OSStatus
http_cdsa_read(SSLConnectionRef connection
, void *data
, size_t *dataLength
);
110 static int http_cdsa_set_credentials(http_t
*http
);
111 static OSStatus
http_cdsa_write(SSLConnectionRef connection
, const void *data
, size_t *dataLength
);
115 * 'cupsMakeServerCredentials()' - Make a self-signed certificate and private key pair.
117 * @since CUPS 2.0/OS 10.10@
120 int /* O - 1 on success, 0 on failure */
121 cupsMakeServerCredentials(
122 const char *path
, /* I - Keychain path or @code NULL@ for default */
123 const char *common_name
, /* I - Common name */
124 int num_alt_names
, /* I - Number of subject alternate names */
125 const char **alt_names
, /* I - Subject Alternate Names */
126 time_t expiration_date
) /* I - Expiration date */
128 #if defined(HAVE_SECGENERATESELFSIGNEDCERTIFICATE)
129 int status
= 0; /* Return status */
130 OSStatus err
; /* Error code (if any) */
131 CFStringRef cfcommon_name
= NULL
;
132 /* CF string for server name */
133 SecIdentityRef ident
= NULL
; /* Identity */
134 SecKeyRef publicKey
= NULL
,
138 SecCertificateRef cert
= NULL
; /* Self-signed certificate */
139 CFMutableDictionaryRef keyParams
= NULL
;
140 /* Key generation parameters */
143 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
));
148 (void)expiration_date
;
152 DEBUG_puts("1cupsMakeServerCredentials: No keychain support compiled in, returning 0.");
158 DEBUG_puts("1cupsMakeServerCredentials: Using existing self-signed cert.");
162 cfcommon_name
= CFStringCreateWithCString(kCFAllocatorDefault
, common_name
, kCFStringEncodingUTF8
);
165 DEBUG_puts("1cupsMakeServerCredentials: Unable to create CF string of common name.");
170 * Create a public/private key pair...
173 keyParams
= CFDictionaryCreateMutable(kCFAllocatorDefault
, 0, &kCFTypeDictionaryKeyCallBacks
, &kCFTypeDictionaryValueCallBacks
);
176 DEBUG_puts("1cupsMakeServerCredentials: Unable to create key parameters dictionary.");
180 CFDictionaryAddValue(keyParams
, kSecAttrKeyType
, kSecAttrKeyTypeRSA
);
181 CFDictionaryAddValue(keyParams
, kSecAttrKeySizeInBits
, CFSTR("2048"));
182 CFDictionaryAddValue(keyParams
, kSecAttrLabel
, cfcommon_name
);
184 err
= SecKeyGeneratePair(keyParams
, &publicKey
, &privateKey
);
187 DEBUG_printf(("1cupsMakeServerCredentials: Unable to generate key pair: %d.", (int)err
));
192 * Create a self-signed certificate using the public/private key pair...
195 CFIndex usageInt
= kSecKeyUsageAll
;
196 CFNumberRef usage
= CFNumberCreate(kCFAllocatorDefault
, kCFNumberCFIndexType
, &usageInt
);
198 CFNumberRef len
= CFNumberCreate(kCFAllocatorDefault
, kCFNumberCFIndexType
, &lenInt
);
199 CFTypeRef certKeys
[] = { kSecCSRBasicContraintsPathLen
, kSecSubjectAltName
, kSecCertificateKeyUsage
};
200 CFTypeRef certValues
[] = { len
, cfcommon_name
, usage
};
201 CFDictionaryRef certParams
= CFDictionaryCreate(kCFAllocatorDefault
, certKeys
, certValues
, sizeof(certKeys
) / sizeof(certKeys
[0]), &kCFTypeDictionaryKeyCallBacks
, &kCFTypeDictionaryValueCallBacks
);
205 const void *ca_o
[] = { kSecOidOrganization
, CFSTR("") };
206 const void *ca_cn
[] = { kSecOidCommonName
, cfcommon_name
};
207 CFArrayRef ca_o_dn
= CFArrayCreate(kCFAllocatorDefault
, ca_o
, 2, NULL
);
208 CFArrayRef ca_cn_dn
= CFArrayCreate(kCFAllocatorDefault
, ca_cn
, 2, NULL
);
209 const void *ca_dn_array
[2];
211 ca_dn_array
[0] = CFArrayCreate(kCFAllocatorDefault
, (const void **)&ca_o_dn
, 1, NULL
);
212 ca_dn_array
[1] = CFArrayCreate(kCFAllocatorDefault
, (const void **)&ca_cn_dn
, 1, NULL
);
214 CFArrayRef subject
= CFArrayCreate(kCFAllocatorDefault
, ca_dn_array
, 2, NULL
);
216 cert
= SecGenerateSelfSignedCertificate(subject
, certParams
, publicKey
, privateKey
);
219 CFRelease(certParams
);
223 DEBUG_puts("1cupsMakeServerCredentials: Unable to create self-signed certificate.");
227 ident
= SecIdentityCreate(kCFAllocatorDefault
, cert
, privateKey
);
231 _cupsMutexLock(&tls_mutex
);
236 tls_selfsigned
= ident
;
238 _cupsMutexLock(&tls_mutex
);
240 # if 0 /* Someday perhaps SecItemCopyMatching will work for identities, at which point */
241 CFTypeRef itemKeys
[] = { kSecClass
, kSecAttrLabel
, kSecValueRef
};
242 CFTypeRef itemValues
[] = { kSecClassIdentity
, cfcommon_name
, ident
};
243 CFDictionaryRef itemAttrs
= CFDictionaryCreate(kCFAllocatorDefault
, itemKeys
, itemValues
, sizeof(itemKeys
) / sizeof(itemKeys
[0]), &kCFTypeDictionaryKeyCallBacks
, &kCFTypeDictionaryValueCallBacks
);
245 err
= SecItemAdd(itemAttrs
, NULL
);
246 /* SecItemAdd consumes itemAttrs... */
252 DEBUG_printf(("1cupsMakeServerCredentials: Unable to add identity to keychain: %d.", (int)err
));
260 DEBUG_puts("1cupsMakeServerCredentials: Unable to create identity from cert and keys.");
263 * Cleanup and return...
269 CFRelease(cfcommon_name
);
272 CFRelease(keyParams
);
278 CFRelease(publicKey
);
281 CFRelease(privateKey
);
283 DEBUG_printf(("1cupsMakeServerCredentials: Returning %d.", status
));
287 #else /* !HAVE_SECGENERATESELFSIGNEDCERTIFICATE */
288 int pid
, /* Process ID of command */
289 status
, /* Status of command */
291 char command
[1024], /* Command */
292 *argv
[5], /* Command-line arguments */
293 *envp
[1000], /* Environment variables */
294 days
[32], /* CERTTOOL_EXPIRATION_DAYS env var */
295 keychain
[1024], /* Keychain argument */
296 infofile
[1024], /* Type-in information for cert */
297 filename
[1024]; /* Default keychain path */
298 cups_file_t
*fp
; /* Seed/info file */
301 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
));
307 path
= http_cdsa_default_path(filename
, sizeof(filename
));
310 * Run the "certtool" command to generate a self-signed certificate...
313 if (!cupsFileFind("certtool", getenv("PATH"), 1, command
, sizeof(command
)))
317 * Create a file with the certificate information fields...
319 * Note: This assumes that the default questions are asked by the certtool
323 if ((fp
= cupsTempFile2(infofile
, sizeof(infofile
))) == NULL
)
327 "CUPS Self-Signed Certificate\n"
328 /* Enter key and certificate label */
329 "r\n" /* Generate RSA key pair */
330 "2048\n" /* 2048 bit encryption key */
331 "y\n" /* OK (y = yes) */
332 "b\n" /* Usage (b=signing/encryption) */
333 "2\n" /* Sign with SHA256 */
334 "y\n" /* OK (y = yes) */
335 "%s\n" /* Common name */
336 "\n" /* Country (default) */
337 "\n" /* Organization (default) */
338 "\n" /* Organizational unit (default) */
339 "\n" /* State/Province (default) */
340 "\n" /* Email address */
341 "y\n", /* OK (y = yes) */
345 snprintf(keychain
, sizeof(keychain
), "k=%s", path
);
347 argv
[0] = "certtool";
352 snprintf(days
, sizeof(days
), "CERTTOOL_EXPIRATION_DAYS=%d", (int)((expiration_date
- time(NULL
) + 86399) / 86400));
354 for (i
= 0; i
< (int)(sizeof(envp
) / sizeof(envp
[0]) - 2) && environ
[i
]; i
++)
355 envp
[i
+ 1] = environ
[i
];
358 posix_spawn_file_actions_t actions
; /* File actions */
360 posix_spawn_file_actions_init(&actions
);
361 posix_spawn_file_actions_addclose(&actions
, 0);
362 posix_spawn_file_actions_addopen(&actions
, 0, infofile
, O_RDONLY
, 0);
363 posix_spawn_file_actions_addclose(&actions
, 1);
364 posix_spawn_file_actions_addopen(&actions
, 1, "/dev/null", O_WRONLY
, 0);
365 posix_spawn_file_actions_addclose(&actions
, 2);
366 posix_spawn_file_actions_addopen(&actions
, 2, "/dev/null", O_WRONLY
, 0);
368 if (posix_spawn(&pid
, command
, &actions
, NULL
, argv
, envp
))
374 posix_spawn_file_actions_destroy(&actions
);
378 while (waitpid(pid
, &status
, 0) < 0)
386 #endif /* HAVE_SECGENERATESELFSIGNEDCERTIFICATE && HAVE_SECKEYCHAINOPEN */
391 * 'cupsSetServerCredentials()' - Set the default server credentials.
393 * Note: The server credentials are used by all threads in the running process.
394 * This function is threadsafe.
396 * @since CUPS 2.0/macOS 10.10@
399 int /* O - 1 on success, 0 on failure */
400 cupsSetServerCredentials(
401 const char *path
, /* I - Keychain path or @code NULL@ for default */
402 const char *common_name
, /* I - Default common name for server */
403 int auto_create
) /* I - 1 = automatically create self-signed certificates */
405 DEBUG_printf(("cupsSetServerCredentials(path=\"%s\", common_name=\"%s\", auto_create=%d)", path
, common_name
, auto_create
));
407 #ifdef HAVE_SECKEYCHAINOPEN
408 char filename
[1024]; /* Keychain filename */
409 SecKeychainRef keychain
= http_cdsa_open_keychain(path
, filename
, sizeof(filename
));
413 DEBUG_puts("1cupsSetServerCredentials: Unable to open keychain.");
417 _cupsMutexLock(&tls_mutex
);
420 * Close any keychain that is currently open...
424 CFRelease(tls_keychain
);
427 _cupsStrFree(tls_keypath
);
430 _cupsStrFree(tls_common_name
);
433 * Save the new keychain...
436 tls_keychain
= keychain
;
437 tls_keypath
= _cupsStrAlloc(filename
);
438 tls_auto_create
= auto_create
;
439 tls_common_name
= _cupsStrAlloc(common_name
);
441 _cupsMutexUnlock(&tls_mutex
);
443 DEBUG_puts("1cupsSetServerCredentials: Opened keychain, returning 1.");
449 DEBUG_puts("1cupsSetServerCredentials: No keychain support compiled in, returning 0.");
453 tls_auto_create
= auto_create
;
454 tls_common_name
= _cupsStrAlloc(common_name
);
457 #endif /* HAVE_SECKEYCHAINOPEN */
462 * 'httpCopyCredentials()' - Copy the credentials associated with the peer in
463 * an encrypted connection.
465 * @since CUPS 1.5/macOS 10.7@
468 int /* O - Status of call (0 = success) */
470 http_t
*http
, /* I - Connection to server */
471 cups_array_t
**credentials
) /* O - Array of credentials */
473 OSStatus error
; /* Error code */
474 SecTrustRef peerTrust
; /* Peer trust reference */
475 CFIndex count
; /* Number of credentials */
476 SecCertificateRef secCert
; /* Certificate reference */
477 CFDataRef data
; /* Certificate data */
478 int i
; /* Looping var */
481 DEBUG_printf(("httpCopyCredentials(http=%p, credentials=%p)", (void *)http
, (void *)credentials
));
486 if (!http
|| !http
->tls
|| !credentials
)
489 if (!(error
= SSLCopyPeerTrust(http
->tls
, &peerTrust
)) && peerTrust
)
491 DEBUG_printf(("2httpCopyCredentials: Peer provided %d certificates.", (int)SecTrustGetCertificateCount(peerTrust
)));
493 if ((*credentials
= cupsArrayNew(NULL
, NULL
)) != NULL
)
495 count
= SecTrustGetCertificateCount(peerTrust
);
497 for (i
= 0; i
< count
; i
++)
499 secCert
= SecTrustGetCertificateAtIndex(peerTrust
, i
);
502 CFStringRef cf_name
= SecCertificateCopySubjectSummary(secCert
);
505 CFStringGetCString(cf_name
, name
, sizeof(name
), kCFStringEncodingUTF8
);
507 strlcpy(name
, "unknown", sizeof(name
));
509 DEBUG_printf(("2httpCopyCredentials: Certificate %d name is \"%s\".", i
, name
));
512 if ((data
= SecCertificateCopyData(secCert
)) != NULL
)
514 DEBUG_printf(("2httpCopyCredentials: Adding %d byte certificate blob.", (int)CFDataGetLength(data
)));
516 httpAddCredential(*credentials
, CFDataGetBytePtr(data
), (size_t)CFDataGetLength(data
));
522 CFRelease(peerTrust
);
530 * '_httpCreateCredentials()' - Create credentials in the internal format.
533 http_tls_credentials_t
/* O - Internal credentials */
534 _httpCreateCredentials(
535 cups_array_t
*credentials
) /* I - Array of credentials */
537 CFMutableArrayRef peerCerts
; /* Peer credentials reference */
538 SecCertificateRef secCert
; /* Certificate reference */
539 http_credential_t
*credential
; /* Credential data */
545 if ((peerCerts
= CFArrayCreateMutable(kCFAllocatorDefault
,
546 cupsArrayCount(credentials
),
547 &kCFTypeArrayCallBacks
)) == NULL
)
550 for (credential
= (http_credential_t
*)cupsArrayFirst(credentials
);
552 credential
= (http_credential_t
*)cupsArrayNext(credentials
))
554 if ((secCert
= http_cdsa_create_credential(credential
)) != NULL
)
556 CFArrayAppendValue(peerCerts
, secCert
);
566 * 'httpCredentialsAreValidForName()' - Return whether the credentials are valid for the given name.
568 * @since CUPS 2.0/macOS 10.10@
571 int /* O - 1 if valid, 0 otherwise */
572 httpCredentialsAreValidForName(
573 cups_array_t
*credentials
, /* I - Credentials */
574 const char *common_name
) /* I - Name to check */
576 SecCertificateRef secCert
; /* Certificate reference */
577 CFStringRef cfcert_name
= NULL
;
578 /* Certificate's common name (CF string) */
579 char cert_name
[256]; /* Certificate's common name (C string) */
580 int valid
= 1; /* Valid name? */
583 if ((secCert
= http_cdsa_create_credential((http_credential_t
*)cupsArrayFirst(credentials
))) == NULL
)
587 * Compare the common names...
590 if ((cfcert_name
= SecCertificateCopySubjectSummary(secCert
)) == NULL
)
593 * Can't get common name, cannot be valid...
598 else if (CFStringGetCString(cfcert_name
, cert_name
, sizeof(cert_name
), kCFStringEncodingUTF8
) &&
599 _cups_strcasecmp(common_name
, cert_name
))
602 * Not an exact match for the common name, check for wildcard certs...
605 const char *domain
= strchr(common_name
, '.');
606 /* Domain in common name */
608 if (strncmp(cert_name
, "*.", 2) || !domain
|| _cups_strcasecmp(domain
, cert_name
+ 1))
611 * Not a wildcard match.
614 /* TODO: Check subject alternate names */
620 CFRelease(cfcert_name
);
629 * 'httpCredentialsGetTrust()' - Return the trust of credentials.
631 * @since CUPS 2.0/macOS 10.10@
634 http_trust_t
/* O - Level of trust */
635 httpCredentialsGetTrust(
636 cups_array_t
*credentials
, /* I - Credentials */
637 const char *common_name
) /* I - Common name for trust lookup */
639 SecCertificateRef secCert
; /* Certificate reference */
640 http_trust_t trust
= HTTP_TRUST_OK
;
642 cups_array_t
*tcreds
= NULL
; /* Trusted credentials */
643 _cups_globals_t
*cg
= _cupsGlobals();
644 /* Per-thread globals */
649 _cupsSetError(IPP_STATUS_ERROR_INTERNAL
, _("No common name specified."), 1);
650 return (HTTP_TRUST_UNKNOWN
);
653 if ((secCert
= http_cdsa_create_credential((http_credential_t
*)cupsArrayFirst(credentials
))) == NULL
)
655 _cupsSetError(IPP_STATUS_ERROR_INTERNAL
, _("Unable to create credentials from array."), 1);
656 return (HTTP_TRUST_UNKNOWN
);
659 if (cg
->any_root
< 0)
663 * Look this common name up in the default keychains...
666 httpLoadCredentials(NULL
, &tcreds
, common_name
);
670 char credentials_str
[1024], /* String for incoming credentials */
671 tcreds_str
[1024]; /* String for saved credentials */
673 httpCredentialsString(credentials
, credentials_str
, sizeof(credentials_str
));
674 httpCredentialsString(tcreds
, tcreds_str
, sizeof(tcreds_str
));
676 if (strcmp(credentials_str
, tcreds_str
))
679 * Credentials don't match, let's look at the expiration date of the new
680 * credentials and allow if the new ones have a later expiration...
683 if (!cg
->trust_first
)
686 * Do not trust certificates on first use...
689 _cupsSetError(IPP_STATUS_ERROR_INTERNAL
, _("Trust on first use is disabled."), 1);
691 trust
= HTTP_TRUST_INVALID
;
693 else if (httpCredentialsGetExpiration(credentials
) <= httpCredentialsGetExpiration(tcreds
))
696 * The new credentials are not newly issued...
699 _cupsSetError(IPP_STATUS_ERROR_INTERNAL
, _("New credentials are older than stored credentials."), 1);
701 trust
= HTTP_TRUST_INVALID
;
703 else if (!httpCredentialsAreValidForName(credentials
, common_name
))
706 * The common name does not match the issued certificate...
709 _cupsSetError(IPP_STATUS_ERROR_INTERNAL
, _("New credentials are not valid for name."), 1);
711 trust
= HTTP_TRUST_INVALID
;
713 else if (httpCredentialsGetExpiration(tcreds
) < time(NULL
))
716 * Save the renewed credentials...
719 trust
= HTTP_TRUST_RENEWED
;
721 httpSaveCredentials(NULL
, credentials
, common_name
);
725 httpFreeCredentials(tcreds
);
727 else if (cg
->validate_certs
&& !httpCredentialsAreValidForName(credentials
, common_name
))
729 _cupsSetError(IPP_STATUS_ERROR_INTERNAL
, _("No stored credentials, not valid for name."), 1);
730 trust
= HTTP_TRUST_INVALID
;
732 else if (!cg
->trust_first
)
735 * See if we have a site CA certificate we can compare...
738 if (!httpLoadCredentials(NULL
, &tcreds
, "site"))
740 if (cupsArrayCount(credentials
) != (cupsArrayCount(tcreds
) + 1))
743 * Certificate isn't directly generated from the CA cert...
746 trust
= HTTP_TRUST_INVALID
;
751 * Do a tail comparison of the two certificates...
754 http_credential_t
*a
, *b
; /* Certificates */
756 for (a
= (http_credential_t
*)cupsArrayFirst(tcreds
), b
= (http_credential_t
*)cupsArrayIndex(credentials
, 1);
758 a
= (http_credential_t
*)cupsArrayNext(tcreds
), b
= (http_credential_t
*)cupsArrayNext(credentials
))
759 if (a
->datalen
!= b
->datalen
|| memcmp(a
->data
, b
->data
, a
->datalen
))
763 trust
= HTTP_TRUST_INVALID
;
766 if (trust
!= HTTP_TRUST_OK
)
767 _cupsSetError(IPP_STATUS_ERROR_INTERNAL
, _("Credentials do not validate against site CA certificate."), 1);
771 _cupsSetError(IPP_STATUS_ERROR_INTERNAL
, _("Trust on first use is disabled."), 1);
772 trust
= HTTP_TRUST_INVALID
;
776 if (trust
== HTTP_TRUST_OK
&& !cg
->expired_certs
&& !SecCertificateIsValid(secCert
, CFAbsoluteTimeGetCurrent()))
778 _cupsSetError(IPP_STATUS_ERROR_INTERNAL
, _("Credentials have expired."), 1);
779 trust
= HTTP_TRUST_EXPIRED
;
782 if (trust
== HTTP_TRUST_OK
&& !cg
->any_root
&& cupsArrayCount(credentials
) == 1)
784 _cupsSetError(IPP_STATUS_ERROR_INTERNAL
, _("Self-signed credentials are blocked."), 1);
785 trust
= HTTP_TRUST_INVALID
;
795 * 'httpCredentialsGetExpiration()' - Return the expiration date of the credentials.
797 * @since CUPS 2.0/macOS 10.10@
800 time_t /* O - Expiration date of credentials */
801 httpCredentialsGetExpiration(
802 cups_array_t
*credentials
) /* I - Credentials */
804 SecCertificateRef secCert
; /* Certificate reference */
805 time_t expiration
; /* Expiration date */
808 if ((secCert
= http_cdsa_create_credential((http_credential_t
*)cupsArrayFirst(credentials
))) == NULL
)
811 expiration
= (time_t)(SecCertificateNotValidAfter(secCert
) + kCFAbsoluteTimeIntervalSince1970
);
820 * 'httpCredentialsString()' - Return a string representing the credentials.
822 * @since CUPS 2.0/macOS 10.10@
825 size_t /* O - Total size of credentials string */
826 httpCredentialsString(
827 cups_array_t
*credentials
, /* I - Credentials */
828 char *buffer
, /* I - Buffer or @code NULL@ */
829 size_t bufsize
) /* I - Size of buffer */
831 http_credential_t
*first
; /* First certificate */
832 SecCertificateRef secCert
; /* Certificate reference */
835 DEBUG_printf(("httpCredentialsString(credentials=%p, buffer=%p, bufsize=" CUPS_LLFMT
")", (void *)credentials
, (void *)buffer
, CUPS_LLCAST bufsize
));
840 if (buffer
&& bufsize
> 0)
843 if ((first
= (http_credential_t
*)cupsArrayFirst(credentials
)) != NULL
&&
844 (secCert
= http_cdsa_create_credential(first
)) != NULL
)
847 * Copy certificate (string) values from the SecCertificateRef and produce
848 * a one-line summary. The API for accessing certificate values like the
849 * issuer name is, um, "interesting"...
853 CFDictionaryRef cf_dict
; /* Dictionary for certificate */
854 # endif /* !TARGET_OS_IOS */
855 CFStringRef cf_string
; /* CF string */
856 char commonName
[256],/* Common name associated with cert */
857 issuer
[256], /* Issuer name */
858 sigalg
[256]; /* Signature algorithm */
859 time_t expiration
; /* Expiration date of cert */
860 unsigned char md5_digest
[16]; /* MD5 result */
862 if (SecCertificateCopyCommonName(secCert
, &cf_string
) == noErr
)
864 CFStringGetCString(cf_string
, commonName
, (CFIndex
)sizeof(commonName
), kCFStringEncodingUTF8
);
865 CFRelease(cf_string
);
869 strlcpy(commonName
, "unknown", sizeof(commonName
));
872 strlcpy(issuer
, "unknown", sizeof(issuer
));
873 strlcpy(sigalg
, "UnknownSignature", sizeof(sigalg
));
876 if ((cf_dict
= SecCertificateCopyValues(secCert
, NULL
, NULL
)) != NULL
)
878 CFDictionaryRef cf_issuer
= CFDictionaryGetValue(cf_dict
, kSecOIDX509V1IssuerName
);
879 CFDictionaryRef cf_sigalg
= CFDictionaryGetValue(cf_dict
, kSecOIDX509V1SignatureAlgorithm
);
883 CFArrayRef cf_values
= CFDictionaryGetValue(cf_issuer
, kSecPropertyKeyValue
);
884 CFIndex i
, count
= CFArrayGetCount(cf_values
);
885 CFDictionaryRef cf_value
;
887 for (i
= 0; i
< count
; i
++)
889 cf_value
= CFArrayGetValueAtIndex(cf_values
, i
);
891 if (!CFStringCompare(CFDictionaryGetValue(cf_value
, kSecPropertyKeyLabel
), kSecOIDOrganizationName
, kCFCompareCaseInsensitive
))
892 CFStringGetCString(CFDictionaryGetValue(cf_value
, kSecPropertyKeyValue
), issuer
, (CFIndex
)sizeof(issuer
), kCFStringEncodingUTF8
);
898 CFArrayRef cf_values
= CFDictionaryGetValue(cf_sigalg
, kSecPropertyKeyValue
);
899 CFIndex i
, count
= CFArrayGetCount(cf_values
);
900 CFDictionaryRef cf_value
;
902 for (i
= 0; i
< count
; i
++)
904 cf_value
= CFArrayGetValueAtIndex(cf_values
, i
);
906 if (!CFStringCompare(CFDictionaryGetValue(cf_value
, kSecPropertyKeyLabel
), CFSTR("Algorithm"), kCFCompareCaseInsensitive
))
908 CFStringRef cf_algorithm
= CFDictionaryGetValue(cf_value
, kSecPropertyKeyValue
);
910 if (!CFStringCompare(cf_algorithm
, CFSTR("1.2.840.113549.1.1.5"), kCFCompareCaseInsensitive
))
911 strlcpy(sigalg
, "SHA1WithRSAEncryption", sizeof(sigalg
));
912 else if (!CFStringCompare(cf_algorithm
, CFSTR("1.2.840.113549.1.1.11"), kCFCompareCaseInsensitive
))
913 strlcpy(sigalg
, "SHA256WithRSAEncryption", sizeof(sigalg
));
914 else if (!CFStringCompare(cf_algorithm
, CFSTR("1.2.840.113549.1.1.4"), kCFCompareCaseInsensitive
))
915 strlcpy(sigalg
, "MD5WithRSAEncryption", sizeof(sigalg
));
922 # endif /* !TARGET_OS_IOS */
924 expiration
= (time_t)(SecCertificateNotValidAfter(secCert
) + kCFAbsoluteTimeIntervalSince1970
);
926 cupsHashData("md5", first
->data
, first
->datalen
, md5_digest
, sizeof(md5_digest
));
928 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]);
933 DEBUG_printf(("1httpCredentialsString: Returning \"%s\".", buffer
));
935 return (strlen(buffer
));
940 * '_httpFreeCredentials()' - Free internal credentials.
944 _httpFreeCredentials(
945 http_tls_credentials_t credentials
) /* I - Internal credentials */
950 CFRelease(credentials
);
955 * 'httpLoadCredentials()' - Load X.509 credentials from a keychain file.
957 * @since CUPS 2.0/OS 10.10@
960 int /* O - 0 on success, -1 on error */
962 const char *path
, /* I - Keychain path or @code NULL@ for default */
963 cups_array_t
**credentials
, /* IO - Credentials */
964 const char *common_name
) /* I - Common name for credentials */
966 OSStatus err
; /* Error info */
967 #ifdef HAVE_SECKEYCHAINOPEN
968 char filename
[1024]; /* Filename for keychain */
969 SecKeychainRef keychain
= NULL
,/* Keychain reference */
970 syschain
= NULL
;/* System keychain */
971 CFArrayRef list
; /* Keychain list */
972 #endif /* HAVE_SECKEYCHAINOPEN */
973 SecCertificateRef cert
= NULL
; /* Certificate */
974 CFDataRef data
; /* Certificate data */
975 SecPolicyRef policy
= NULL
; /* Policy ref */
976 CFStringRef cfcommon_name
= NULL
;
978 CFMutableDictionaryRef query
= NULL
; /* Query qualifiers */
981 DEBUG_printf(("httpLoadCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path
, (void *)credentials
, common_name
));
988 #ifdef HAVE_SECKEYCHAINOPEN
989 keychain
= http_cdsa_open_keychain(path
, filename
, sizeof(filename
));
994 syschain
= http_cdsa_open_system_keychain();
999 #endif /* HAVE_SECKEYCHAINOPEN */
1001 cfcommon_name
= CFStringCreateWithCString(kCFAllocatorDefault
, common_name
, kCFStringEncodingUTF8
);
1003 policy
= SecPolicyCreateSSL(1, cfcommon_name
);
1006 CFRelease(cfcommon_name
);
1011 if (!(query
= CFDictionaryCreateMutable(kCFAllocatorDefault
, 0, &kCFTypeDictionaryKeyCallBacks
, &kCFTypeDictionaryValueCallBacks
)))
1014 CFDictionaryAddValue(query
, kSecClass
, kSecClassCertificate
);
1015 CFDictionaryAddValue(query
, kSecMatchPolicy
, policy
);
1016 CFDictionaryAddValue(query
, kSecReturnRef
, kCFBooleanTrue
);
1017 CFDictionaryAddValue(query
, kSecMatchLimit
, kSecMatchLimitOne
);
1019 #ifdef HAVE_SECKEYCHAINOPEN
1022 const void *values
[2] = { syschain
, keychain
};
1024 list
= CFArrayCreate(kCFAllocatorDefault
, (const void **)values
, 2, &kCFTypeArrayCallBacks
);
1027 list
= CFArrayCreate(kCFAllocatorDefault
, (const void **)&keychain
, 1, &kCFTypeArrayCallBacks
);
1028 CFDictionaryAddValue(query
, kSecMatchSearchList
, list
);
1030 #endif /* HAVE_SECKEYCHAINOPEN */
1032 err
= SecItemCopyMatching(query
, (CFTypeRef
*)&cert
);
1037 if (CFGetTypeID(cert
) != SecCertificateGetTypeID())
1040 if ((data
= SecCertificateCopyData(cert
)) != NULL
)
1042 DEBUG_printf(("1httpLoadCredentials: Adding %d byte certificate blob.", (int)CFDataGetLength(data
)));
1044 *credentials
= cupsArrayNew(NULL
, NULL
);
1045 httpAddCredential(*credentials
, CFDataGetBytePtr(data
), (size_t)CFDataGetLength(data
));
1051 #ifdef HAVE_SECKEYCHAINOPEN
1053 CFRelease(keychain
);
1056 CFRelease(syschain
);
1057 #endif /* HAVE_SECKEYCHAINOPEN */
1065 DEBUG_printf(("1httpLoadCredentials: Returning %d.", *credentials
? 0 : -1));
1067 return (*credentials
? 0 : -1);
1072 * 'httpSaveCredentials()' - Save X.509 credentials to a keychain file.
1074 * @since CUPS 2.0/OS 10.10@
1077 int /* O - -1 on error, 0 on success */
1078 httpSaveCredentials(
1079 const char *path
, /* I - Keychain path or @code NULL@ for default */
1080 cups_array_t
*credentials
, /* I - Credentials */
1081 const char *common_name
) /* I - Common name for credentials */
1083 int ret
= -1; /* Return value */
1084 OSStatus err
; /* Error info */
1085 #ifdef HAVE_SECKEYCHAINOPEN
1086 char filename
[1024]; /* Filename for keychain */
1087 SecKeychainRef keychain
= NULL
;/* Keychain reference */
1088 CFArrayRef list
; /* Keychain list */
1089 #endif /* HAVE_SECKEYCHAINOPEN */
1090 SecCertificateRef cert
= NULL
; /* Certificate */
1091 CFMutableDictionaryRef attrs
= NULL
; /* Attributes for add */
1094 DEBUG_printf(("httpSaveCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path
, (void *)credentials
, common_name
));
1098 if (!httpCredentialsAreValidForName(credentials
, common_name
))
1100 DEBUG_puts("1httpSaveCredentials: Common name does not match.");
1104 if ((cert
= http_cdsa_create_credential((http_credential_t
*)cupsArrayFirst(credentials
))) == NULL
)
1106 DEBUG_puts("1httpSaveCredentials: Unable to create certificate.");
1110 #ifdef HAVE_SECKEYCHAINOPEN
1111 keychain
= http_cdsa_open_keychain(path
, filename
, sizeof(filename
));
1119 #endif /* HAVE_SECKEYCHAINOPEN */
1121 if ((attrs
= CFDictionaryCreateMutable(kCFAllocatorDefault
, 0, &kCFTypeDictionaryKeyCallBacks
, &kCFTypeDictionaryValueCallBacks
)) == NULL
)
1123 DEBUG_puts("1httpSaveCredentials: Unable to create dictionary.");
1127 CFDictionaryAddValue(attrs
, kSecClass
, kSecClassCertificate
);
1128 CFDictionaryAddValue(attrs
, kSecValueRef
, cert
);
1130 #ifdef HAVE_SECKEYCHAINOPEN
1131 if ((list
= CFArrayCreate(kCFAllocatorDefault
, (const void **)&keychain
, 1, &kCFTypeArrayCallBacks
)) == NULL
)
1133 DEBUG_puts("1httpSaveCredentials: Unable to create list of keychains.");
1136 CFDictionaryAddValue(attrs
, kSecMatchSearchList
, list
);
1138 #endif /* HAVE_SECKEYCHAINOPEN */
1140 /* Note: SecItemAdd consumes "attrs"... */
1141 err
= SecItemAdd(attrs
, NULL
);
1142 DEBUG_printf(("1httpSaveCredentials: SecItemAdd returned %d.", (int)err
));
1146 #ifdef HAVE_SECKEYCHAINOPEN
1148 CFRelease(keychain
);
1149 #endif /* HAVE_SECKEYCHAINOPEN */
1153 DEBUG_printf(("1httpSaveCredentials: Returning %d.", ret
));
1160 * '_httpTLSInitialize()' - Initialize the TLS stack.
1164 _httpTLSInitialize(void)
1173 * '_httpTLSPending()' - Return the number of pending TLS-encrypted bytes.
1177 _httpTLSPending(http_t
*http
) /* I - HTTP connection */
1179 size_t bytes
; /* Bytes that are available */
1182 if (!SSLGetBufferedReadSize(http
->tls
, &bytes
))
1190 * '_httpTLSRead()' - Read from a SSL/TLS connection.
1193 int /* O - Bytes read */
1194 _httpTLSRead(http_t
*http
, /* I - HTTP connection */
1195 char *buf
, /* I - Buffer to store data */
1196 int len
) /* I - Length of buffer */
1198 int result
; /* Return value */
1199 OSStatus error
; /* Error info */
1200 size_t processed
; /* Number of bytes processed */
1203 error
= SSLRead(http
->tls
, buf
, (size_t)len
, &processed
);
1204 DEBUG_printf(("6_httpTLSRead: error=%d, processed=%d", (int)error
,
1209 result
= (int)processed
;
1212 case errSSLWouldBlock
:
1214 result
= (int)processed
;
1222 case errSSLClosedGraceful
:
1225 result
= (int)processed
;
1239 * '_httpTLSSetOptions()' - Set TLS protocol and cipher suite options.
1243 _httpTLSSetOptions(int options
, /* I - Options */
1244 int min_version
, /* I - Minimum TLS version */
1245 int max_version
) /* I - Maximum TLS version */
1247 if (!(options
& _HTTP_TLS_SET_DEFAULT
) || tls_options
< 0)
1249 tls_options
= options
;
1250 tls_min_version
= min_version
;
1251 tls_max_version
= max_version
;
1257 * '_httpTLSStart()' - Set up SSL/TLS support on a connection.
1260 int /* O - 0 on success, -1 on failure */
1261 _httpTLSStart(http_t
*http
) /* I - HTTP connection */
1263 char hostname
[256], /* Hostname */
1264 *hostptr
; /* Pointer into hostname */
1265 _cups_globals_t
*cg
= _cupsGlobals();
1266 /* Pointer to library globals */
1267 OSStatus error
; /* Error code */
1268 const char *message
= NULL
;/* Error message */
1269 cups_array_t
*credentials
; /* Credentials array */
1270 cups_array_t
*names
; /* CUPS distinguished names */
1271 CFArrayRef dn_array
; /* CF distinguished names array */
1272 CFIndex count
; /* Number of credentials */
1273 CFDataRef data
; /* Certificate data */
1274 int i
; /* Looping var */
1275 http_credential_t
*credential
; /* Credential data */
1278 DEBUG_printf(("3_httpTLSStart(http=%p)", (void *)http
));
1280 if (tls_options
< 0)
1282 DEBUG_puts("4_httpTLSStart: Setting defaults.");
1284 DEBUG_printf(("4_httpTLSStart: tls_options=%x, tls_min_version=%d, tls_max_version=%d", tls_options
, tls_min_version
, tls_max_version
));
1287 #ifdef HAVE_SECKEYCHAINOPEN
1288 if (http
->mode
== _HTTP_MODE_SERVER
&& !tls_keychain
)
1290 DEBUG_puts("4_httpTLSStart: cupsSetServerCredentials not called.");
1291 http
->error
= errno
= EINVAL
;
1292 http
->status
= HTTP_STATUS_ERROR
;
1293 _cupsSetError(IPP_STATUS_ERROR_INTERNAL
, _("Server credentials not set."), 1);
1297 #endif /* HAVE_SECKEYCHAINOPEN */
1299 if ((http
->tls
= SSLCreateContext(kCFAllocatorDefault
, http
->mode
== _HTTP_MODE_CLIENT
? kSSLClientSide
: kSSLServerSide
, kSSLStreamType
)) == NULL
)
1301 DEBUG_puts("4_httpTLSStart: SSLCreateContext failed.");
1302 http
->error
= errno
= ENOMEM
;
1303 http
->status
= HTTP_STATUS_ERROR
;
1304 _cupsSetHTTPError(HTTP_STATUS_ERROR
);
1309 error
= SSLSetConnection(http
->tls
, http
);
1310 DEBUG_printf(("4_httpTLSStart: SSLSetConnection, error=%d", (int)error
));
1314 error
= SSLSetIOFuncs(http
->tls
, http_cdsa_read
, http_cdsa_write
);
1315 DEBUG_printf(("4_httpTLSStart: SSLSetIOFuncs, error=%d", (int)error
));
1320 error
= SSLSetSessionOption(http
->tls
, kSSLSessionOptionBreakOnServerAuth
,
1322 DEBUG_printf(("4_httpTLSStart: SSLSetSessionOption, error=%d", (int)error
));
1327 static const SSLProtocol protocols
[] = /* Min/max protocol versions */
1336 if (tls_min_version
< _HTTP_TLS_MAX
)
1338 error
= SSLSetProtocolVersionMin(http
->tls
, protocols
[tls_min_version
]);
1339 DEBUG_printf(("4_httpTLSStart: SSLSetProtocolVersionMin(%d), error=%d", protocols
[tls_min_version
], (int)error
));
1342 if (!error
&& tls_max_version
< _HTTP_TLS_MAX
)
1344 error
= SSLSetProtocolVersionMax(http
->tls
, protocols
[tls_max_version
]);
1345 DEBUG_printf(("4_httpTLSStart: SSLSetProtocolVersionMax(%d), error=%d", protocols
[tls_max_version
], (int)error
));
1349 # if HAVE_SSLSETENABLEDCIPHERS
1352 SSLCipherSuite supported
[100]; /* Supported cipher suites */
1353 size_t num_supported
; /* Number of supported cipher suites */
1354 SSLCipherSuite enabled
[100]; /* Cipher suites to enable */
1355 size_t num_enabled
; /* Number of cipher suites to enable */
1357 num_supported
= sizeof(supported
) / sizeof(supported
[0]);
1358 error
= SSLGetSupportedCiphers(http
->tls
, supported
, &num_supported
);
1362 DEBUG_printf(("4_httpTLSStart: %d cipher suites supported.", (int)num_supported
));
1364 for (i
= 0, num_enabled
= 0; i
< (int)num_supported
&& num_enabled
< (sizeof(enabled
) / sizeof(enabled
[0])); i
++)
1366 switch (supported
[i
])
1368 /* Obviously insecure cipher suites that we never want to use */
1369 case SSL_NULL_WITH_NULL_NULL
:
1370 case SSL_RSA_WITH_NULL_MD5
:
1371 case SSL_RSA_WITH_NULL_SHA
:
1372 case SSL_RSA_EXPORT_WITH_RC4_40_MD5
:
1373 case SSL_RSA_EXPORT_WITH_RC2_CBC_40_MD5
:
1374 case SSL_RSA_EXPORT_WITH_DES40_CBC_SHA
:
1375 case SSL_RSA_WITH_DES_CBC_SHA
:
1376 case SSL_DH_DSS_EXPORT_WITH_DES40_CBC_SHA
:
1377 case SSL_DH_DSS_WITH_DES_CBC_SHA
:
1378 case SSL_DH_RSA_EXPORT_WITH_DES40_CBC_SHA
:
1379 case SSL_DH_RSA_WITH_DES_CBC_SHA
:
1380 case SSL_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA
:
1381 case SSL_DHE_DSS_WITH_DES_CBC_SHA
:
1382 case SSL_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA
:
1383 case SSL_DHE_RSA_WITH_DES_CBC_SHA
:
1384 case SSL_DH_anon_EXPORT_WITH_RC4_40_MD5
:
1385 case SSL_DH_anon_WITH_RC4_128_MD5
:
1386 case SSL_DH_anon_EXPORT_WITH_DES40_CBC_SHA
:
1387 case SSL_DH_anon_WITH_DES_CBC_SHA
:
1388 case SSL_DH_anon_WITH_3DES_EDE_CBC_SHA
:
1389 case SSL_FORTEZZA_DMS_WITH_NULL_SHA
:
1390 case TLS_DH_anon_WITH_AES_128_CBC_SHA
:
1391 case TLS_DH_anon_WITH_AES_256_CBC_SHA
:
1392 case TLS_ECDH_ECDSA_WITH_NULL_SHA
:
1393 case TLS_ECDHE_RSA_WITH_NULL_SHA
:
1394 case TLS_ECDH_anon_WITH_NULL_SHA
:
1395 case TLS_ECDH_anon_WITH_RC4_128_SHA
:
1396 case TLS_ECDH_anon_WITH_3DES_EDE_CBC_SHA
:
1397 case TLS_ECDH_anon_WITH_AES_128_CBC_SHA
:
1398 case TLS_ECDH_anon_WITH_AES_256_CBC_SHA
:
1399 case TLS_RSA_WITH_NULL_SHA256
:
1400 case TLS_DH_anon_WITH_AES_128_CBC_SHA256
:
1401 case TLS_DH_anon_WITH_AES_256_CBC_SHA256
:
1402 case TLS_PSK_WITH_NULL_SHA
:
1403 case TLS_DHE_PSK_WITH_NULL_SHA
:
1404 case TLS_RSA_PSK_WITH_NULL_SHA
:
1405 case TLS_DH_anon_WITH_AES_128_GCM_SHA256
:
1406 case TLS_DH_anon_WITH_AES_256_GCM_SHA384
:
1407 case TLS_PSK_WITH_NULL_SHA256
:
1408 case TLS_PSK_WITH_NULL_SHA384
:
1409 case TLS_DHE_PSK_WITH_NULL_SHA256
:
1410 case TLS_DHE_PSK_WITH_NULL_SHA384
:
1411 case TLS_RSA_PSK_WITH_NULL_SHA256
:
1412 case TLS_RSA_PSK_WITH_NULL_SHA384
:
1413 case SSL_RSA_WITH_DES_CBC_MD5
:
1414 DEBUG_printf(("4_httpTLSStart: Excluding insecure cipher suite %d", supported
[i
]));
1417 /* RC4 cipher suites that should only be used as a last resort */
1418 case SSL_RSA_WITH_RC4_128_MD5
:
1419 case SSL_RSA_WITH_RC4_128_SHA
:
1420 case TLS_ECDH_ECDSA_WITH_RC4_128_SHA
:
1421 case TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
:
1422 case TLS_ECDH_RSA_WITH_RC4_128_SHA
:
1423 case TLS_ECDHE_RSA_WITH_RC4_128_SHA
:
1424 case TLS_PSK_WITH_RC4_128_SHA
:
1425 case TLS_DHE_PSK_WITH_RC4_128_SHA
:
1426 case TLS_RSA_PSK_WITH_RC4_128_SHA
:
1427 if (tls_options
& _HTTP_TLS_ALLOW_RC4
)
1428 enabled
[num_enabled
++] = supported
[i
];
1430 DEBUG_printf(("4_httpTLSStart: Excluding RC4 cipher suite %d", supported
[i
]));
1433 /* DH/DHE cipher suites that are problematic with parameters < 1024 bits */
1434 case TLS_DH_DSS_WITH_AES_128_CBC_SHA
:
1435 case TLS_DH_RSA_WITH_AES_128_CBC_SHA
:
1436 case TLS_DHE_DSS_WITH_AES_128_CBC_SHA
:
1437 case TLS_DHE_RSA_WITH_AES_128_CBC_SHA
:
1438 case TLS_DH_DSS_WITH_AES_256_CBC_SHA
:
1439 case TLS_DH_RSA_WITH_AES_256_CBC_SHA
:
1440 case TLS_DHE_DSS_WITH_AES_256_CBC_SHA
:
1441 case TLS_DHE_RSA_WITH_AES_256_CBC_SHA
:
1442 case TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA
:
1443 case TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA
:
1444 case TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
:
1445 case TLS_DH_DSS_WITH_AES_128_CBC_SHA256
:
1446 case TLS_DH_RSA_WITH_AES_128_CBC_SHA256
:
1447 case TLS_DHE_DSS_WITH_AES_128_CBC_SHA256
:
1448 case TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
:
1449 case TLS_DH_DSS_WITH_AES_256_CBC_SHA256
:
1450 case TLS_DH_RSA_WITH_AES_256_CBC_SHA256
:
1451 case TLS_DHE_DSS_WITH_AES_256_CBC_SHA256
:
1452 case TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
:
1453 case TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA
:
1454 case TLS_DHE_PSK_WITH_AES_128_CBC_SHA
:
1455 case TLS_DHE_PSK_WITH_AES_256_CBC_SHA
:
1456 case TLS_DHE_PSK_WITH_AES_128_CBC_SHA256
:
1457 case TLS_DHE_PSK_WITH_AES_256_CBC_SHA384
:
1458 if (tls_options
& _HTTP_TLS_DENY_CBC
)
1460 DEBUG_printf(("4_httpTLSStart: Excluding CBC cipher suite %d", supported
[i
]));
1464 // case TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 :
1465 // case TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 :
1466 case TLS_DH_RSA_WITH_AES_128_GCM_SHA256
:
1467 case TLS_DH_RSA_WITH_AES_256_GCM_SHA384
:
1468 // case TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 :
1469 // case TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 :
1470 case TLS_DH_DSS_WITH_AES_128_GCM_SHA256
:
1471 case TLS_DH_DSS_WITH_AES_256_GCM_SHA384
:
1472 case TLS_DHE_PSK_WITH_AES_128_GCM_SHA256
:
1473 case TLS_DHE_PSK_WITH_AES_256_GCM_SHA384
:
1474 if (tls_options
& _HTTP_TLS_ALLOW_DH
)
1475 enabled
[num_enabled
++] = supported
[i
];
1477 DEBUG_printf(("4_httpTLSStart: Excluding DH/DHE cipher suite %d", supported
[i
]));
1480 case TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA
:
1481 case TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
:
1482 case TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
:
1483 case TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
:
1484 case TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
:
1485 case TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
:
1486 case TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
:
1487 case TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
:
1488 case TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
:
1489 case TLS_RSA_WITH_3DES_EDE_CBC_SHA
:
1490 case TLS_RSA_WITH_AES_128_CBC_SHA
:
1491 case TLS_RSA_WITH_AES_256_CBC_SHA
:
1492 if (tls_options
& _HTTP_TLS_DENY_CBC
)
1494 DEBUG_printf(("4_httpTLSStart: Excluding CBC cipher suite %d", supported
[i
]));
1498 /* Anything else we'll assume is "secure" */
1500 enabled
[num_enabled
++] = supported
[i
];
1505 DEBUG_printf(("4_httpTLSStart: %d cipher suites enabled.", (int)num_enabled
));
1506 error
= SSLSetEnabledCiphers(http
->tls
, enabled
, num_enabled
);
1509 #endif /* HAVE_SSLSETENABLEDCIPHERS */
1511 if (!error
&& http
->mode
== _HTTP_MODE_CLIENT
)
1514 * Client: set client-side credentials, if any...
1517 if (cg
->client_cert_cb
)
1519 error
= SSLSetSessionOption(http
->tls
,
1520 kSSLSessionOptionBreakOnCertRequested
, true);
1521 DEBUG_printf(("4_httpTLSStart: kSSLSessionOptionBreakOnCertRequested, "
1522 "error=%d", (int)error
));
1526 error
= http_cdsa_set_credentials(http
);
1527 DEBUG_printf(("4_httpTLSStart: http_cdsa_set_credentials, error=%d",
1534 * Server: find/create a certificate for TLS...
1537 if (http
->fields
[HTTP_FIELD_HOST
])
1540 * Use hostname for TLS upgrade...
1543 strlcpy(hostname
, http
->fields
[HTTP_FIELD_HOST
], sizeof(hostname
));
1548 * Resolve hostname from connection address...
1551 http_addr_t addr
; /* Connection address */
1552 socklen_t addrlen
; /* Length of address */
1554 addrlen
= sizeof(addr
);
1555 if (getsockname(http
->fd
, (struct sockaddr
*)&addr
, &addrlen
))
1557 DEBUG_printf(("4_httpTLSStart: Unable to get socket address: %s", strerror(errno
)));
1560 else if (httpAddrLocalhost(&addr
))
1564 httpAddrLookup(&addr
, hostname
, sizeof(hostname
));
1565 DEBUG_printf(("4_httpTLSStart: Resolved socket address to \"%s\".", hostname
));
1569 if (isdigit(hostname
[0] & 255) || hostname
[0] == '[')
1570 hostname
[0] = '\0'; /* Don't allow numeric addresses */
1573 http
->tls_credentials
= http_cdsa_copy_server(hostname
);
1574 else if (tls_common_name
)
1575 http
->tls_credentials
= http_cdsa_copy_server(tls_common_name
);
1577 if (!http
->tls_credentials
&& tls_auto_create
&& (hostname
[0] || tls_common_name
))
1579 DEBUG_printf(("4_httpTLSStart: Auto-create credentials for \"%s\".", hostname
[0] ? hostname
: tls_common_name
));
1581 if (!cupsMakeServerCredentials(tls_keypath
, hostname
[0] ? hostname
: tls_common_name
, 0, NULL
, time(NULL
) + 365 * 86400))
1583 DEBUG_puts("4_httpTLSStart: cupsMakeServerCredentials failed.");
1584 http
->error
= errno
= EINVAL
;
1585 http
->status
= HTTP_STATUS_ERROR
;
1586 _cupsSetError(IPP_STATUS_ERROR_INTERNAL
, _("Unable to create server credentials."), 1);
1591 http
->tls_credentials
= http_cdsa_copy_server(hostname
[0] ? hostname
: tls_common_name
);
1594 if (!http
->tls_credentials
)
1596 DEBUG_puts("4_httpTLSStart: Unable to find server credentials.");
1597 http
->error
= errno
= EINVAL
;
1598 http
->status
= HTTP_STATUS_ERROR
;
1599 _cupsSetError(IPP_STATUS_ERROR_INTERNAL
, _("Unable to find server credentials."), 1);
1604 error
= SSLSetCertificate(http
->tls
, http
->tls_credentials
);
1606 DEBUG_printf(("4_httpTLSStart: SSLSetCertificate, error=%d", (int)error
));
1609 DEBUG_printf(("4_httpTLSStart: tls_credentials=%p", (void *)http
->tls_credentials
));
1612 * Let the server know which hostname/domain we are trying to connect to
1613 * in case it wants to serve up a certificate with a matching common name.
1616 if (!error
&& http
->mode
== _HTTP_MODE_CLIENT
)
1619 * Client: get the hostname to use for TLS...
1622 if (httpAddrLocalhost(http
->hostaddr
))
1624 strlcpy(hostname
, "localhost", sizeof(hostname
));
1629 * Otherwise make sure the hostname we have does not end in a trailing dot.
1632 strlcpy(hostname
, http
->hostname
, sizeof(hostname
));
1633 if ((hostptr
= hostname
+ strlen(hostname
) - 1) >= hostname
&&
1638 error
= SSLSetPeerDomainName(http
->tls
, hostname
, strlen(hostname
));
1640 DEBUG_printf(("4_httpTLSStart: SSLSetPeerDomainName, error=%d", (int)error
));
1645 int done
= 0; /* Are we done yet? */
1646 double old_timeout
; /* Old timeout value */
1647 http_timeout_cb_t old_cb
; /* Old timeout callback */
1648 void *old_data
; /* Old timeout data */
1651 * Enforce a minimum timeout of 10 seconds for the TLS handshake...
1654 old_timeout
= http
->timeout_value
;
1655 old_cb
= http
->timeout_cb
;
1656 old_data
= http
->timeout_data
;
1658 if (!old_cb
|| old_timeout
< 10.0)
1660 DEBUG_puts("4_httpTLSStart: Setting timeout to 10 seconds.");
1661 httpSetTimeout(http
, 10.0, NULL
, NULL
);
1665 * Do the TLS handshake...
1668 while (!error
&& !done
)
1670 error
= SSLHandshake(http
->tls
);
1672 DEBUG_printf(("4_httpTLSStart: SSLHandshake returned %d.", (int)error
));
1680 case errSSLWouldBlock
:
1681 error
= noErr
; /* Force a retry */
1682 usleep(1000); /* in 1 millisecond */
1685 case errSSLServerAuthCompleted
:
1687 if (cg
->server_cert_cb
)
1689 error
= httpCopyCredentials(http
, &credentials
);
1692 error
= (cg
->server_cert_cb
)(http
, http
->tls
, credentials
,
1693 cg
->server_cert_data
);
1694 httpFreeCredentials(credentials
);
1697 DEBUG_printf(("4_httpTLSStart: Server certificate callback "
1698 "returned %d.", (int)error
));
1702 case errSSLClientCertRequested
:
1705 if (cg
->client_cert_cb
)
1708 if (!(error
= SSLCopyDistinguishedNames(http
->tls
, &dn_array
)) &&
1711 if ((names
= cupsArrayNew(NULL
, NULL
)) != NULL
)
1713 for (i
= 0, count
= CFArrayGetCount(dn_array
); i
< count
; i
++)
1715 data
= (CFDataRef
)CFArrayGetValueAtIndex(dn_array
, i
);
1717 if ((credential
= malloc(sizeof(*credential
))) != NULL
)
1719 credential
->datalen
= (size_t)CFDataGetLength(data
);
1720 if ((credential
->data
= malloc(credential
->datalen
)))
1722 memcpy((void *)credential
->data
, CFDataGetBytePtr(data
),
1723 credential
->datalen
);
1724 cupsArrayAdd(names
, credential
);
1732 CFRelease(dn_array
);
1737 error
= (cg
->client_cert_cb
)(http
, http
->tls
, names
,
1738 cg
->client_cert_data
);
1740 DEBUG_printf(("4_httpTLSStart: Client certificate callback "
1741 "returned %d.", (int)error
));
1744 httpFreeCredentials(names
);
1748 case errSSLUnknownRootCert
:
1749 message
= _("Unable to establish a secure connection to host "
1750 "(untrusted certificate).");
1753 case errSSLNoRootCert
:
1754 message
= _("Unable to establish a secure connection to host "
1755 "(self-signed certificate).");
1758 case errSSLCertExpired
:
1759 message
= _("Unable to establish a secure connection to host "
1760 "(expired certificate).");
1763 case errSSLCertNotYetValid
:
1764 message
= _("Unable to establish a secure connection to host "
1765 "(certificate not yet valid).");
1768 case errSSLHostNameMismatch
:
1769 message
= _("Unable to establish a secure connection to host "
1770 "(host name mismatch).");
1773 case errSSLXCertChainInvalid
:
1774 message
= _("Unable to establish a secure connection to host "
1775 "(certificate chain invalid).");
1778 case errSSLConnectionRefused
:
1779 message
= _("Unable to establish a secure connection to host "
1780 "(peer dropped connection before responding).");
1789 * Restore the previous timeout settings...
1792 httpSetTimeout(http
, old_timeout
, old_cb
, old_data
);
1797 http
->error
= error
;
1798 http
->status
= HTTP_STATUS_ERROR
;
1799 errno
= ECONNREFUSED
;
1801 CFRelease(http
->tls
);
1805 * If an error string wasn't set by the callbacks use a generic one...
1809 #ifdef HAVE_CSSMERRORSTRING
1810 message
= cssmErrorString(error
);
1812 message
= _("Unable to establish a secure connection to host.");
1813 #endif /* HAVE_CSSMERRORSTRING */
1815 _cupsSetError(IPP_STATUS_ERROR_CUPS_PKI
, message
, 1);
1825 * '_httpTLSStop()' - Shut down SSL/TLS on a connection.
1829 _httpTLSStop(http_t
*http
) /* I - HTTP connection */
1831 while (SSLClose(http
->tls
) == errSSLWouldBlock
)
1834 CFRelease(http
->tls
);
1836 if (http
->tls_credentials
)
1837 CFRelease(http
->tls_credentials
);
1840 http
->tls_credentials
= NULL
;
1845 * '_httpTLSWrite()' - Write to a SSL/TLS connection.
1848 int /* O - Bytes written */
1849 _httpTLSWrite(http_t
*http
, /* I - HTTP connection */
1850 const char *buf
, /* I - Buffer holding data */
1851 int len
) /* I - Length of buffer */
1853 ssize_t result
; /* Return value */
1854 OSStatus error
; /* Error info */
1855 size_t processed
; /* Number of bytes processed */
1858 DEBUG_printf(("2_httpTLSWrite(http=%p, buf=%p, len=%d)", (void *)http
, (void *)buf
, len
));
1860 error
= SSLWrite(http
->tls
, buf
, (size_t)len
, &processed
);
1865 result
= (int)processed
;
1868 case errSSLWouldBlock
:
1871 result
= (int)processed
;
1880 case errSSLClosedGraceful
:
1884 result
= (int)processed
;
1894 DEBUG_printf(("3_httpTLSWrite: Returning %d.", (int)result
));
1896 return ((int)result
);
1901 * 'http_cdsa_copy_server()' - Find and copy server credentials from the keychain.
1904 static CFArrayRef
/* O - Array of certificates or NULL */
1905 http_cdsa_copy_server(
1906 const char *common_name
) /* I - Server's hostname */
1908 #ifdef HAVE_SECKEYCHAINOPEN
1909 OSStatus err
; /* Error info */
1910 SecIdentityRef identity
= NULL
;/* Identity */
1911 CFArrayRef certificates
= NULL
;
1912 /* Certificate array */
1913 SecPolicyRef policy
= NULL
; /* Policy ref */
1914 CFStringRef cfcommon_name
= NULL
;
1916 CFMutableDictionaryRef query
= NULL
; /* Query qualifiers */
1917 CFArrayRef list
= NULL
; /* Keychain list */
1918 SecKeychainRef syschain
= NULL
;/* System keychain */
1919 SecKeychainStatus status
= 0; /* Keychain status */
1922 DEBUG_printf(("3http_cdsa_copy_server(common_name=\"%s\")", common_name
));
1924 cfcommon_name
= CFStringCreateWithCString(kCFAllocatorDefault
, common_name
, kCFStringEncodingUTF8
);
1926 policy
= SecPolicyCreateSSL(1, cfcommon_name
);
1930 DEBUG_puts("4http_cdsa_copy_server: Unable to create SSL policy.");
1934 if (!(query
= CFDictionaryCreateMutable(kCFAllocatorDefault
, 0, &kCFTypeDictionaryKeyCallBacks
, &kCFTypeDictionaryValueCallBacks
)))
1936 DEBUG_puts("4http_cdsa_copy_server: Unable to create query dictionary.");
1940 _cupsMutexLock(&tls_mutex
);
1942 err
= SecKeychainGetStatus(tls_keychain
, &status
);
1944 if (err
== noErr
&& !(status
& kSecUnlockStateStatus
) && tls_cups_keychain
)
1945 SecKeychainUnlock(tls_keychain
, _CUPS_CDSA_PASSLEN
, _CUPS_CDSA_PASSWORD
, TRUE
);
1947 CFDictionaryAddValue(query
, kSecClass
, kSecClassIdentity
);
1948 CFDictionaryAddValue(query
, kSecMatchPolicy
, policy
);
1949 CFDictionaryAddValue(query
, kSecReturnRef
, kCFBooleanTrue
);
1950 CFDictionaryAddValue(query
, kSecMatchLimit
, kSecMatchLimitOne
);
1952 syschain
= http_cdsa_open_system_keychain();
1956 const void *values
[2] = { syschain
, tls_keychain
};
1958 list
= CFArrayCreate(kCFAllocatorDefault
, (const void **)values
, 2, &kCFTypeArrayCallBacks
);
1961 list
= CFArrayCreate(kCFAllocatorDefault
, (const void **)&tls_keychain
, 1, &kCFTypeArrayCallBacks
);
1963 CFDictionaryAddValue(query
, kSecMatchSearchList
, list
);
1966 err
= SecItemCopyMatching(query
, (CFTypeRef
*)&identity
);
1968 _cupsMutexUnlock(&tls_mutex
);
1972 DEBUG_printf(("4http_cdsa_copy_server: SecItemCopyMatching failed with status %d.", (int)err
));
1976 if (CFGetTypeID(identity
) != SecIdentityGetTypeID())
1978 DEBUG_puts("4http_cdsa_copy_server: Search returned something that is not an identity.");
1982 if ((certificates
= CFArrayCreate(NULL
, (const void **)&identity
, 1, &kCFTypeArrayCallBacks
)) == NULL
)
1984 DEBUG_puts("4http_cdsa_copy_server: Unable to create array of certificates.");
1991 CFRelease(syschain
);
1993 CFRelease(identity
);
1997 CFRelease(cfcommon_name
);
2001 DEBUG_printf(("4http_cdsa_copy_server: Returning %p.", (void *)certificates
));
2003 return (certificates
);
2008 if (!tls_selfsigned
)
2011 return (CFArrayCreate(NULL
, (const void **)&tls_selfsigned
, 1, &kCFTypeArrayCallBacks
));
2012 #endif /* HAVE_SECKEYCHAINOPEN */
2017 * 'http_cdsa_create_credential()' - Create a single credential in the internal format.
2020 static SecCertificateRef
/* O - Certificate */
2021 http_cdsa_create_credential(
2022 http_credential_t
*credential
) /* I - Credential */
2027 return (SecCertificateCreateWithBytes(kCFAllocatorDefault
, credential
->data
, (CFIndex
)credential
->datalen
));
2031 #ifdef HAVE_SECKEYCHAINOPEN
2033 * 'http_cdsa_default_path()' - Get the default keychain path.
2036 static const char * /* O - Keychain path */
2037 http_cdsa_default_path(char *buffer
, /* I - Path buffer */
2038 size_t bufsize
) /* I - Size of buffer */
2040 const char *home
= getenv("HOME"); /* HOME environment variable */
2044 * Determine the default keychain path. Note that the login and system
2045 * keychains are no longer accessible to user applications starting in macOS
2046 * 10.11.4 (!), so we need to create our own keychain just for CUPS.
2049 if (getuid() && home
)
2050 snprintf(buffer
, bufsize
, "%s/.cups/ssl.keychain", home
);
2052 strlcpy(buffer
, "/etc/cups/ssl.keychain", bufsize
);
2054 DEBUG_printf(("1http_cdsa_default_path: Using default path \"%s\".", buffer
));
2061 * 'http_cdsa_open_keychain()' - Open (or create) a keychain.
2064 static SecKeychainRef
/* O - Keychain or NULL */
2065 http_cdsa_open_keychain(
2066 const char *path
, /* I - Path to keychain */
2067 char *filename
, /* I - Keychain filename */
2068 size_t filesize
) /* I - Size of filename buffer */
2070 SecKeychainRef keychain
= NULL
;/* Temporary keychain */
2071 OSStatus err
; /* Error code */
2072 Boolean interaction
; /* Interaction allowed? */
2073 SecKeychainStatus status
= 0; /* Keychain status */
2077 * Get the keychain filename...
2082 path
= http_cdsa_default_path(filename
, filesize
);
2083 tls_cups_keychain
= 1;
2087 strlcpy(filename
, path
, filesize
);
2088 tls_cups_keychain
= 0;
2092 * Save the interaction setting and disable while we open the keychain...
2095 SecKeychainGetUserInteractionAllowed(&interaction
);
2096 SecKeychainSetUserInteractionAllowed(FALSE
);
2098 if (access(path
, R_OK
) && tls_cups_keychain
)
2101 * Create a new keychain at the given path...
2104 err
= SecKeychainCreate(path
, _CUPS_CDSA_PASSLEN
, _CUPS_CDSA_PASSWORD
, FALSE
, NULL
, &keychain
);
2109 * Open the existing keychain and unlock as needed...
2112 err
= SecKeychainOpen(path
, &keychain
);
2115 err
= SecKeychainGetStatus(keychain
, &status
);
2117 if (err
== noErr
&& !(status
& kSecUnlockStateStatus
) && tls_cups_keychain
)
2118 err
= SecKeychainUnlock(keychain
, _CUPS_CDSA_PASSLEN
, _CUPS_CDSA_PASSWORD
, TRUE
);
2122 * Restore interaction setting...
2125 SecKeychainSetUserInteractionAllowed(interaction
);
2128 * Release the keychain if we had any errors...
2133 /* TODO: Set cups last error string */
2134 DEBUG_printf(("4http_cdsa_open_keychain: Unable to open keychain (%d), returning NULL.", (int)err
));
2138 CFRelease(keychain
);
2144 * Return the keychain or NULL...
2152 * 'http_cdsa_open_system_keychain()' - Open the System keychain.
2155 static SecKeychainRef
2156 http_cdsa_open_system_keychain(void)
2158 SecKeychainRef keychain
= NULL
;/* Temporary keychain */
2159 OSStatus err
; /* Error code */
2160 Boolean interaction
; /* Interaction allowed? */
2161 SecKeychainStatus status
= 0; /* Keychain status */
2165 * Save the interaction setting and disable while we open the keychain...
2168 SecKeychainGetUserInteractionAllowed(&interaction
);
2169 SecKeychainSetUserInteractionAllowed(TRUE
);
2171 err
= SecKeychainOpen("/Library/Keychains/System.keychain", &keychain
);
2174 err
= SecKeychainGetStatus(keychain
, &status
);
2176 if (err
== noErr
&& !(status
& kSecUnlockStateStatus
))
2177 err
= errSecInteractionNotAllowed
;
2180 * Restore interaction setting...
2183 SecKeychainSetUserInteractionAllowed(interaction
);
2186 * Release the keychain if we had any errors...
2191 /* TODO: Set cups last error string */
2192 DEBUG_printf(("4http_cdsa_open_system_keychain: Unable to open keychain (%d), returning NULL.", (int)err
));
2196 CFRelease(keychain
);
2202 * Return the keychain or NULL...
2207 #endif /* HAVE_SECKEYCHAINOPEN */
2211 * 'http_cdsa_read()' - Read function for the CDSA library.
2214 static OSStatus
/* O - -1 on error, 0 on success */
2216 SSLConnectionRef connection
, /* I - SSL/TLS connection */
2217 void *data
, /* I - Data buffer */
2218 size_t *dataLength
) /* IO - Number of bytes */
2220 OSStatus result
; /* Return value */
2221 ssize_t bytes
; /* Number of bytes read */
2222 http_t
*http
; /* HTTP connection */
2225 http
= (http_t
*)connection
;
2227 if (!http
->blocking
|| http
->timeout_value
> 0.0)
2230 * Make sure we have data before we read...
2233 while (!_httpWait(http
, http
->wait_value
, 0))
2235 if (http
->timeout_cb
&& (*http
->timeout_cb
)(http
, http
->timeout_data
))
2238 http
->error
= ETIMEDOUT
;
2245 bytes
= recv(http
->fd
, data
, *dataLength
, 0);
2247 while (bytes
== -1 && (errno
== EINTR
|| errno
== EAGAIN
));
2249 if ((size_t)bytes
== *dataLength
)
2255 *dataLength
= (size_t)bytes
;
2256 result
= errSSLWouldBlock
;
2263 result
= errSSLClosedGraceful
;
2264 else if (errno
== EAGAIN
)
2265 result
= errSSLWouldBlock
;
2267 result
= errSSLClosedAbort
;
2275 * 'http_cdsa_set_credentials()' - Set the TLS credentials.
2278 static int /* O - Status of connection */
2279 http_cdsa_set_credentials(http_t
*http
) /* I - HTTP connection */
2281 _cups_globals_t
*cg
= _cupsGlobals(); /* Pointer to library globals */
2282 OSStatus error
= 0; /* Error code */
2283 http_tls_credentials_t credentials
= NULL
;
2284 /* TLS credentials */
2287 DEBUG_printf(("7http_tls_set_credentials(%p)", (void *)http
));
2290 * Prefer connection specific credentials...
2293 if ((credentials
= http
->tls_credentials
) == NULL
)
2294 credentials
= cg
->tls_credentials
;
2298 error
= SSLSetCertificate(http
->tls
, credentials
);
2299 DEBUG_printf(("4http_tls_set_credentials: SSLSetCertificate, error=%d",
2303 DEBUG_puts("4http_tls_set_credentials: No credentials to set.");
2310 * 'http_cdsa_write()' - Write function for the CDSA library.
2313 static OSStatus
/* O - -1 on error, 0 on success */
2315 SSLConnectionRef connection
, /* I - SSL/TLS connection */
2316 const void *data
, /* I - Data buffer */
2317 size_t *dataLength
) /* IO - Number of bytes */
2319 OSStatus result
; /* Return value */
2320 ssize_t bytes
; /* Number of bytes read */
2321 http_t
*http
; /* HTTP connection */
2324 http
= (http_t
*)connection
;
2328 bytes
= write(http
->fd
, data
, *dataLength
);
2330 while (bytes
== -1 && (errno
== EINTR
|| errno
== EAGAIN
));
2332 if ((size_t)bytes
== *dataLength
)
2336 else if (bytes
>= 0)
2338 *dataLength
= (size_t)bytes
;
2339 result
= errSSLWouldBlock
;
2345 if (errno
== EAGAIN
)
2346 result
= errSSLWouldBlock
;
2348 result
= errSSLClosedAbort
;