1 /* 2 * This file and its contents are supplied under the terms of the 3 * Common Development and Distribution License ("CDDL"), version 1.0. 4 * You may only use this file in accordance with the terms of version 5 * 1.0 of the CDDL. 6 * 7 * A full copy of the text of the CDDL should have accompanied this 8 * source. A copy of the CDDL is also available via the Internet at 9 * http://www.illumos.org/license/CDDL. 10 */ 11 12 /* 13 * Copyright 2017 Nexenta Systems, Inc. All rights reserved. 14 * Copyright 2022 RackTop Systems, Inc. 15 */ 16 17 #ifndef _SMB_KCRYPT_H_ 18 #define _SMB_KCRYPT_H_ 19 20 /* 21 * SMB signing routines used in {smb,smb2}_signing.c 22 * Two implementations of these (kernel/user) in: 23 * uts/common/fs/smbsrv/smb_sign_kcf.c 24 * lib/smbsrv/libfksmbsrv/common/fksmb_sign_pkcs.c 25 */ 26 27 #ifdef _KERNEL 28 #include <sys/crypto/api.h> 29 #else 30 #include <security/cryptoki.h> 31 #include <security/pkcs11.h> 32 #endif 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 #define AES128_KEY_LENGTH 16 /* AES128 key length in bytes */ 39 #define AES256_KEY_LENGTH 32 /* AES256 key length in bytes */ 40 #define MD5_DIGEST_LENGTH 16 /* MD5 digest length in bytes */ 41 #define SHA256_DIGEST_LENGTH 32 /* SHA256 digest length in bytes */ 42 #define SHA512_DIGEST_LENGTH 64 /* SHA512 digest length in bytes */ 43 #define SMB2_SIG_SIZE 16 44 #define SMB2_KEYLEN 16 /* SMB2/3 Signing Key length */ 45 #define SMB2_SSN_KEYLEN 16 /* Max size of the SMB2 Session Key */ 46 47 #ifdef _KERNEL 48 /* KCF variant */ 49 typedef crypto_mechanism_t smb_crypto_mech_t; 50 typedef crypto_context_t smb_sign_ctx_t; 51 typedef struct smb3_enc_ctx { 52 crypto_context_t ctx; 53 crypto_data_t output; 54 size_t len; 55 } smb3_enc_ctx_t; 56 57 typedef union { 58 CK_AES_CCM_PARAMS ccm; 59 CK_AES_GCM_PARAMS gcm; 60 } smb3_crypto_param_t; 61 62 #else /* _KERNEL */ 63 /* PKCS11 variant */ 64 typedef CK_MECHANISM smb_crypto_mech_t; 65 typedef CK_SESSION_HANDLE smb_sign_ctx_t; 66 typedef struct smb_enc_ctx { 67 CK_SESSION_HANDLE ctx; 68 uint8_t *output; 69 CK_ULONG len; 70 } smb3_enc_ctx_t; 71 /* 72 * CCM in PKCS has not been implemented. 73 * We just need an opaque type with space to refer to. 74 */ 75 typedef struct pkcs_ccm_param { 76 uint8_t buf[100]; 77 } smb3_crypto_param_t; 78 #endif /* _KERNEL */ 79 80 /* 81 * SMB signing routines used in smb_signing.c 82 */ 83 int smb_md5_getmech(smb_crypto_mech_t *); 84 int smb_md5_init(smb_sign_ctx_t *, smb_crypto_mech_t *); 85 int smb_md5_update(smb_sign_ctx_t, void *, size_t); 86 int smb_md5_final(smb_sign_ctx_t, uint8_t *); 87 88 /* 89 * SMB2/3 signing routines used in smb2_signing.c 90 * Two implementations of these (kernel/user) in: 91 * uts/common/fs/smbsrv/smb2_sign_kcf.c 92 * lib/smbsrv/libfksmbsrv/common/fksmb_sign_pkcs.c 93 */ 94 95 int smb2_hmac_getmech(smb_crypto_mech_t *); 96 int smb2_hmac_init(smb_sign_ctx_t *, smb_crypto_mech_t *, uint8_t *, size_t); 97 int smb2_hmac_update(smb_sign_ctx_t, uint8_t *, size_t); 98 int smb2_hmac_final(smb_sign_ctx_t, uint8_t *); 99 100 int smb2_hmac_one(smb_crypto_mech_t *mech, uint8_t *key, size_t key_len, 101 uint8_t *data, size_t data_len, uint8_t *mac, size_t mac_len); 102 103 int smb3_cmac_getmech(smb_crypto_mech_t *); 104 int smb3_cmac_init(smb_sign_ctx_t *, smb_crypto_mech_t *, uint8_t *, size_t); 105 int smb3_cmac_update(smb_sign_ctx_t, uint8_t *, size_t); 106 int smb3_cmac_final(smb_sign_ctx_t, uint8_t *); 107 108 int smb3_kdf(uint8_t *outbuf, uint32_t outbuf_len, 109 uint8_t *key, size_t key_len, 110 uint8_t *label, size_t label_len, 111 uint8_t *context, size_t context_len); 112 113 int smb3_aes_ccm_getmech(smb_crypto_mech_t *); 114 int smb3_aes_gcm_getmech(smb_crypto_mech_t *); 115 void smb3_crypto_init_ccm_param(smb3_crypto_param_t *, uint8_t *, size_t, 116 uint8_t *, size_t, size_t); 117 void smb3_crypto_init_gcm_param(smb3_crypto_param_t *, uint8_t *, size_t, 118 uint8_t *, size_t); 119 120 int smb3_encrypt_init(smb3_enc_ctx_t *, smb_crypto_mech_t *, 121 smb3_crypto_param_t *, uint8_t *, size_t, uint8_t *, size_t); 122 int smb3_encrypt_update(smb3_enc_ctx_t *, uint8_t *, size_t); 123 int smb3_encrypt_final(smb3_enc_ctx_t *, uint8_t *); 124 void smb3_encrypt_cancel(smb3_enc_ctx_t *); 125 126 int smb3_decrypt_init(smb3_enc_ctx_t *, smb_crypto_mech_t *, 127 smb3_crypto_param_t *, uint8_t *, size_t); 128 int smb3_decrypt_update(smb3_enc_ctx_t *, uint8_t *, size_t); 129 int smb3_decrypt_final(smb3_enc_ctx_t *, uint8_t *, size_t); 130 131 #ifdef __cplusplus 132 } 133 #endif 134 135 #endif /* _SMB_KCRYPT_H_ */ 136