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Diffstat (limited to '')
| -rw-r--r-- | libcli/auth/proto.h | 296 |
1 files changed, 296 insertions, 0 deletions
diff --git a/libcli/auth/proto.h b/libcli/auth/proto.h new file mode 100644 index 0000000..b202542 --- /dev/null +++ b/libcli/auth/proto.h @@ -0,0 +1,296 @@ +#ifndef _LIBCLI_AUTH_PROTO_H__ +#define _LIBCLI_AUTH_PROTO_H__ + +#undef _PRINTF_ATTRIBUTE +#define _PRINTF_ATTRIBUTE(a1, a2) PRINTF_ATTRIBUTE(a1, a2) + +#include "lib/crypto/gnutls_helpers.h" + +/* this file contains prototypes for functions that are private + * to this subsystem or library. These functions should not be + * used outside this particular subsystem! */ + + +/* The following definitions come from libcli/auth/credentials.c */ + +bool netlogon_creds_is_random_challenge(const struct netr_Credential *challenge); +void netlogon_creds_random_challenge(struct netr_Credential *challenge); + +NTSTATUS netlogon_creds_des_encrypt_LMKey(struct netlogon_creds_CredentialState *creds, + struct netr_LMSessionKey *key); +NTSTATUS netlogon_creds_des_decrypt_LMKey(struct netlogon_creds_CredentialState *creds, + struct netr_LMSessionKey *key); +NTSTATUS netlogon_creds_des_encrypt(struct netlogon_creds_CredentialState *creds, + struct samr_Password *pass); +NTSTATUS netlogon_creds_des_decrypt(struct netlogon_creds_CredentialState *creds, + struct samr_Password *pass); +NTSTATUS netlogon_creds_arcfour_crypt(struct netlogon_creds_CredentialState *creds, + uint8_t *data, + size_t len); +NTSTATUS netlogon_creds_aes_encrypt(struct netlogon_creds_CredentialState *creds, + uint8_t *data, + size_t len); +NTSTATUS netlogon_creds_aes_decrypt(struct netlogon_creds_CredentialState *creds, + uint8_t *data, + size_t len); + +/***************************************************************** +The above functions are common to the client and server interface +next comes the client specific functions +******************************************************************/ +struct netlogon_creds_CredentialState *netlogon_creds_client_init(TALLOC_CTX *mem_ctx, + const char *client_account, + const char *client_computer_name, + uint16_t secure_channel_type, + const struct netr_Credential *client_challenge, + const struct netr_Credential *server_challenge, + const struct samr_Password *machine_password, + struct netr_Credential *initial_credential, + uint32_t negotiate_flags); +struct netlogon_creds_CredentialState *netlogon_creds_client_init_session_key(TALLOC_CTX *mem_ctx, + const uint8_t session_key[16]); +NTSTATUS +netlogon_creds_client_authenticator(struct netlogon_creds_CredentialState *creds, + struct netr_Authenticator *next); +bool netlogon_creds_client_check(struct netlogon_creds_CredentialState *creds, + const struct netr_Credential *received_credentials); +struct netlogon_creds_CredentialState *netlogon_creds_copy( + TALLOC_CTX *mem_ctx, + const struct netlogon_creds_CredentialState *creds_in); + +/***************************************************************** +The above functions are common to the client and server interface +next comes the server specific functions +******************************************************************/ +struct netlogon_creds_CredentialState *netlogon_creds_server_init(TALLOC_CTX *mem_ctx, + const char *client_account, + const char *client_computer_name, + uint16_t secure_channel_type, + const struct netr_Credential *client_challenge, + const struct netr_Credential *server_challenge, + const struct samr_Password *machine_password, + const struct netr_Credential *credentials_in, + struct netr_Credential *credentials_out, + uint32_t negotiate_flags); +NTSTATUS netlogon_creds_server_step_check(struct netlogon_creds_CredentialState *creds, + const struct netr_Authenticator *received_authenticator, + struct netr_Authenticator *return_authenticator) ; +NTSTATUS netlogon_creds_decrypt_samlogon_validation(struct netlogon_creds_CredentialState *creds, + uint16_t validation_level, + union netr_Validation *validation); +NTSTATUS netlogon_creds_encrypt_samlogon_validation(struct netlogon_creds_CredentialState *creds, + uint16_t validation_level, + union netr_Validation *validation); +NTSTATUS netlogon_creds_decrypt_samlogon_logon(struct netlogon_creds_CredentialState *creds, + enum netr_LogonInfoClass level, + union netr_LogonLevel *logon); +NTSTATUS netlogon_creds_encrypt_samlogon_logon(struct netlogon_creds_CredentialState *creds, + enum netr_LogonInfoClass level, + union netr_LogonLevel *logon); +union netr_LogonLevel *netlogon_creds_shallow_copy_logon(TALLOC_CTX *mem_ctx, + enum netr_LogonInfoClass level, + const union netr_LogonLevel *in); + +/* The following definitions come from libcli/auth/session.c */ + +int sess_crypt_blob(DATA_BLOB *out, const DATA_BLOB *in, const DATA_BLOB *session_key, + enum samba_gnutls_direction encrypt); +DATA_BLOB sess_encrypt_string(const char *str, const DATA_BLOB *session_key); +char *sess_decrypt_string(TALLOC_CTX *mem_ctx, + DATA_BLOB *blob, const DATA_BLOB *session_key); +DATA_BLOB sess_encrypt_blob(TALLOC_CTX *mem_ctx, DATA_BLOB *blob_in, const DATA_BLOB *session_key); +NTSTATUS sess_decrypt_blob(TALLOC_CTX *mem_ctx, const DATA_BLOB *blob, const DATA_BLOB *session_key, + DATA_BLOB *ret); + +/* The following definitions come from libcli/auth/smbencrypt.c */ + +int SMBencrypt_hash(const uint8_t lm_hash[16], const uint8_t *c8, uint8_t p24[24]); +bool SMBencrypt(const char *passwd, const uint8_t *c8, uint8_t p24[24]); + +/** + * Creates the MD4 Hash of the users password in NT UNICODE. + * @param passwd password in 'unix' charset. + * @param p16 return password hashed with md4, caller allocated 16 byte buffer + */ +bool E_md4hash(const char *passwd, uint8_t p16[16]); + +/** + * Creates the DES forward-only Hash of the users password in DOS ASCII charset + * @param passwd password in 'unix' charset. + * @param p16 return password hashed with DES, caller allocated 16 byte buffer + * @return false if password was > 14 characters, and therefore may be incorrect, otherwise true + * @note p16 is filled in regardless + */ +bool E_deshash(const char *passwd, uint8_t p16[16]); + +/** + * Creates the MD4 and DES (LM) Hash of the users password. + * MD4 is of the NT Unicode, DES is of the DOS UPPERCASE password. + * @param passwd password in 'unix' charset. + * @param nt_p16 return password hashed with md4, caller allocated 16 byte buffer + * @param p16 return password hashed with des, caller allocated 16 byte buffer + */ +void nt_lm_owf_gen(const char *pwd, uint8_t nt_p16[16], uint8_t p16[16]); +bool ntv2_owf_gen(const uint8_t owf[16], + const char *user_in, const char *domain_in, + uint8_t kr_buf[16]); +int SMBOWFencrypt(const uint8_t passwd[16], const uint8_t *c8, uint8_t p24[24]); +int SMBNTencrypt_hash(const uint8_t nt_hash[16], const uint8_t *c8, uint8_t *p24); +int SMBNTencrypt(const char *passwd, const uint8_t *c8, uint8_t *p24); +NTSTATUS SMBOWFencrypt_ntv2(const uint8_t kr[16], + const DATA_BLOB *srv_chal, + const DATA_BLOB *smbcli_chal, + uint8_t resp_buf[16]); +NTSTATUS SMBsesskeygen_ntv2(const uint8_t kr[16], + const uint8_t *nt_resp, + uint8_t sess_key[16]); +void SMBsesskeygen_ntv1(const uint8_t kr[16], uint8_t sess_key[16]); +NTSTATUS SMBsesskeygen_lm_sess_key(const uint8_t lm_hash[16], + const uint8_t lm_resp[24], /* only uses 8 */ + uint8_t sess_key[16]); +DATA_BLOB NTLMv2_generate_names_blob(TALLOC_CTX *mem_ctx, + const char *hostname, + const char *domain); +bool SMBNTLMv2encrypt_hash(TALLOC_CTX *mem_ctx, + const char *user, const char *domain, const uint8_t nt_hash[16], + const DATA_BLOB *server_chal, + const NTTIME *server_timestamp, + const DATA_BLOB *names_blob, + DATA_BLOB *lm_response, DATA_BLOB *nt_response, + DATA_BLOB *lm_session_key, DATA_BLOB *user_session_key) ; +bool SMBNTLMv2encrypt(TALLOC_CTX *mem_ctx, + const char *user, const char *domain, + const char *password, + const DATA_BLOB *server_chal, + const DATA_BLOB *names_blob, + DATA_BLOB *lm_response, DATA_BLOB *nt_response, + DATA_BLOB *lm_session_key, DATA_BLOB *user_session_key) ; +NTSTATUS NTLMv2_RESPONSE_verify_netlogon_creds(const char *account_name, + const char *account_domain, + const DATA_BLOB response, + const struct netlogon_creds_CredentialState *creds, + const char *workgroup); + +/*********************************************************** + encode a password buffer with a unicode password. The buffer + is filled with random data to make it harder to attack. +************************************************************/ +bool encode_pw_buffer(uint8_t buffer[516], const char *password, int string_flags); + +/*********************************************************** + decode a password buffer + *new_pw_len is the length in bytes of the possibly mulitbyte + returned password including termination. +************************************************************/ +bool decode_pw_buffer(TALLOC_CTX *ctx, + uint8_t in_buffer[516], + char **pp_new_pwrd, + size_t *new_pw_len, + charset_t string_charset); + +/** + * @brief Encode an password buffer before we encrypt it. + * + * @param buffer[514] The buffer to encode into. + * + * @param password The password we want to encode into the buffer. + * + * @param string_flags String flags for encoding (e.g. STR_UNICODE). + * + * @return true on success, false otherwise. + */ +bool encode_pwd_buffer514_from_str(uint8_t buffer[514], + const char *password, + uint32_t string_flags); + +/** + * @brief Extract AES password blob from buffer. + * + * This extracts the password from the in_buffer as a data blob. It should + * then contain an UTF-16 encoded password. + * + * @param mem_ctx The memory context to allowcate the password on. + * + * @param in_buffer[514] The input buffer to extract the password from. + * + * @param new_password A pointer to the store the extracted password blob. + * + * @return true on success, false otherwise. + */ +bool extract_pwd_blob_from_buffer514(TALLOC_CTX *mem_ctx, + const uint8_t in_buffer[514], + DATA_BLOB *new_password); + +/** + * @brief Decode AES password buffer to password in the given charset. + * + * @param mem_ctx The memory context to allocate the decoded password on. + * + * @param in_buffer[514] The in buffer with the decrypted password data. + * + * @param string_charset The charset to decode to. + * + * @param decoded_password A pointer to store the blob for the decoded password. + * It ensures that the password is NULL terminated. + * + * @return true on success, false otherwise. + */ +bool decode_pwd_string_from_buffer514(TALLOC_CTX *mem_ctx, + const uint8_t in_buffer[514], + charset_t string_charset, + DATA_BLOB *decoded_password); + +/*********************************************************** + Encode an arc4 password change buffer. +************************************************************/ +NTSTATUS encode_rc4_passwd_buffer(const char *passwd, + const DATA_BLOB *session_key, + struct samr_CryptPasswordEx *out_crypt_pwd); + +/*********************************************************** + Decode an arc4 encrypted password change buffer. +************************************************************/ +NTSTATUS decode_rc4_passwd_buffer(const DATA_BLOB *psession_key, + struct samr_CryptPasswordEx *inout_crypt_pwd); + +/*********************************************************** + encode a password buffer with an already unicode password. The + rest of the buffer is filled with random data to make it harder to attack. +************************************************************/ +bool set_pw_in_buffer(uint8_t buffer[516], const DATA_BLOB *password); + +/*********************************************************** + decode a password buffer + *new_pw_size is the length in bytes of the extracted unicode password +************************************************************/ +bool extract_pw_from_buffer(TALLOC_CTX *mem_ctx, + uint8_t in_buffer[516], DATA_BLOB *new_pass); +struct wkssvc_PasswordBuffer; +WERROR encode_wkssvc_join_password_buffer(TALLOC_CTX *mem_ctx, + const char *pwd, + DATA_BLOB *session_key, + struct wkssvc_PasswordBuffer **pwd_buf); +WERROR decode_wkssvc_join_password_buffer(TALLOC_CTX *mem_ctx, + struct wkssvc_PasswordBuffer *pwd_buf, + DATA_BLOB *session_key, + char **pwd); + +/* The following definitions come from libcli/auth/smbdes.c */ + +int des_crypt56_gnutls(uint8_t out[8], const uint8_t in[8], const uint8_t key[7], + enum samba_gnutls_direction encrypt); +int E_P16(const uint8_t *p14,uint8_t *p16); +int E_P24(const uint8_t *p21, const uint8_t *c8, uint8_t *p24); +int E_old_pw_hash( uint8_t *p14, const uint8_t *in, uint8_t *out); +int des_crypt128(uint8_t out[8], const uint8_t in[8], const uint8_t key[16]); +int des_crypt112(uint8_t out[8], const uint8_t in[8], const uint8_t key[14], + enum samba_gnutls_direction encrypt); +int des_crypt112_16(uint8_t out[16], const uint8_t in[16], const uint8_t key[14], + enum samba_gnutls_direction encrypt); +int sam_rid_crypt(unsigned int rid, const uint8_t *in, uint8_t *out, + enum samba_gnutls_direction encrypt); +#undef _PRINTF_ATTRIBUTE +#define _PRINTF_ATTRIBUTE(a1, a2) + +#endif + |