diff options
Diffstat (limited to 'source3/libsmb/smbencrypt.c')
-rw-r--r-- | source3/libsmb/smbencrypt.c | 60 |
1 files changed, 46 insertions, 14 deletions
diff --git a/source3/libsmb/smbencrypt.c b/source3/libsmb/smbencrypt.c index dfa355a7ec..db265c4bf7 100644 --- a/source3/libsmb/smbencrypt.c +++ b/source3/libsmb/smbencrypt.c @@ -116,39 +116,63 @@ void nt_lm_owf_gen(const char *pwd, uchar nt_p16[16], uchar p16[16]) } /* Does both the NTLMv2 owfs of a user's password */ -void ntv2_owf_gen(const uchar owf[16], - const char *user_n, const char *domain_n, uchar kr_buf[16]) +BOOL ntv2_owf_gen(const uchar owf[16], + const char *user_in, const char *domain_in, uchar kr_buf[16]) { - pstring user_u; - pstring dom_u; + smb_ucs2_t *user; + smb_ucs2_t *domain; + + int user_byte_len; + int domain_byte_len; + HMACMD5Context ctx; - int user_l = strlen(user_n); - int domain_l = strlen(domain_n); + user_byte_len = push_ucs2_allocate(&user, user_in); + if (user_byte_len < 0) { + DEBUG(0, ("push_uss2_allocate() for user returned %d (probably malloc() failure)\n", user_byte_len)); + return False; + } - push_ucs2(NULL, user_u, user_n, (user_l+1)*2, STR_UNICODE|STR_NOALIGN|STR_TERMINATE|STR_UPPER); - push_ucs2(NULL, dom_u, domain_n, (domain_l+1)*2, STR_UNICODE|STR_NOALIGN|STR_TERMINATE|STR_UPPER); + domain_byte_len = push_ucs2_allocate(&domain, domain_in); + if (domain_byte_len < 0) { + DEBUG(0, ("push_uss2_allocate() for domain returned %d (probably malloc() failure)\n", user_byte_len)); + return False; + } + + strupper_w(user); + strupper_w(domain); + + /* We don't want null termination */ + user_byte_len = user_byte_len - 2; + domain_byte_len = domain_byte_len - 2; + + SMB_ASSERT(user_byte_len >= 0); + SMB_ASSERT(domain_byte_len >= 0); hmac_md5_init_limK_to_64(owf, 16, &ctx); - hmac_md5_update((const unsigned char *)user_u, user_l * 2, &ctx); - hmac_md5_update((const unsigned char *)dom_u, domain_l * 2, &ctx); + hmac_md5_update((const unsigned char *)user, user_byte_len, &ctx); + hmac_md5_update((const unsigned char *)domain, domain_byte_len, &ctx); hmac_md5_final(kr_buf, &ctx); #ifdef DEBUG_PASSWORD DEBUG(100, ("ntv2_owf_gen: user, domain, owfkey, kr\n")); - dump_data(100, user_u, user_l * 2); - dump_data(100, dom_u, domain_l * 2); + dump_data(100, (const char *)user, user_byte_len); + dump_data(100, (const char *)domain, domain_byte_len); dump_data(100, owf, 16); dump_data(100, kr_buf, 16); #endif + + SAFE_FREE(user); + SAFE_FREE(domain); + return True; } /* Does the des encryption from the NT or LM MD4 hash. */ void SMBOWFencrypt(const uchar passwd[16], const uchar *c8, uchar p24[24]) { uchar p21[21]; - - memset(p21,'\0',21); + + ZERO_STRUCT(p21); memcpy(p21, passwd, 16); E_P24(p21, c8, p24); @@ -362,6 +386,12 @@ void cli_caclulate_sign_mac(struct cli_state *cli) unsigned char calc_md5_mac[16]; struct MD5Context md5_ctx; + if (cli->sign_info.temp_smb_signing) { + memcpy(&cli->outbuf[smb_ss_field], "SignRequest", 8); + cli->sign_info.temp_smb_signing = False; + return; + } + if (!cli->sign_info.use_smb_signing) { return; } @@ -380,6 +410,8 @@ void cli_caclulate_sign_mac(struct cli_state *cli) MD5Final(calc_md5_mac, &md5_ctx); memcpy(&cli->outbuf[smb_ss_field], calc_md5_mac, 8); +/* cli->outbuf[smb_ss_field+2]=0; + Uncomment this to test if the remote server actually verifies signitures...*/ cli->sign_info.send_seq_num++; cli->sign_info.reply_seq_num = cli->sign_info.send_seq_num; cli->sign_info.send_seq_num++; |