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swoole_mysql_proto.cc 27.72 KB
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韩天峰 authored 2019-05-22 17:30 . fix core-tests
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/*
+----------------------------------------------------------------------+
| Swoole |
+----------------------------------------------------------------------+
| Copyright (c) 2012-2015 The Swoole Group |
+----------------------------------------------------------------------+
| This source file is subject to version 2.0 of the Apache license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http:// www.apache.org/licenses/LICENSE-2.0.html |
| If you did not receive a copy of the Apache2.0 license and are unable|
| to obtain it through the world-wide-web, please send a note to |
| license@swoole.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Twosee <twose@qq.com> |
| Author: Tianfeng Han <mikan.tenny@gmail.com> |
+----------------------------------------------------------------------+
*/
#include "swoole_mysql_proto.h"
using namespace swoole::mysql;
namespace swoole
{
namespace mysql
{
typedef struct
{
unsigned int nr;
const char *name;
const char *collation;
} charset_t;
char get_charset(const char *name)
{
static const charset_t charsets[] =
{
{ 1, "big5", "big5_chinese_ci" },
{ 3, "dec8", "dec8_swedish_ci" },
{ 4, "cp850", "cp850_general_ci" },
{ 6, "hp8", "hp8_english_ci" },
{ 7, "koi8r", "koi8r_general_ci" },
{ 8, "latin1", "latin1_swedish_ci" },
{ 5, "latin1", "latin1_german1_ci" },
{ 9, "latin2", "latin2_general_ci" },
{ 2, "latin2", "latin2_czech_cs" },
{ 10, "swe7", "swe7_swedish_ci" },
{ 11, "ascii", "ascii_general_ci" },
{ 12, "ujis", "ujis_japanese_ci" },
{ 13, "sjis", "sjis_japanese_ci" },
{ 16, "hebrew", "hebrew_general_ci" },
{ 17, "filename", "filename" },
{ 18, "tis620", "tis620_thai_ci" },
{ 19, "euckr", "euckr_korean_ci" },
{ 21, "latin2", "latin2_hungarian_ci" },
{ 27, "latin2", "latin2_croatian_ci" },
{ 22, "koi8u", "koi8u_general_ci" },
{ 24, "gb2312", "gb2312_chinese_ci" },
{ 25, "greek", "greek_general_ci" },
{ 26, "cp1250", "cp1250_general_ci" },
{ 28, "gbk", "gbk_chinese_ci" },
{ 30, "latin5", "latin5_turkish_ci" },
{ 31, "latin1", "latin1_german2_ci" },
{ 15, "latin1", "latin1_danish_ci" },
{ 32, "armscii8", "armscii8_general_ci" },
{ 33, "utf8", "utf8_general_ci" },
{ 35, "ucs2", "ucs2_general_ci" },
{ 36, "cp866", "cp866_general_ci" },
{ 37, "keybcs2", "keybcs2_general_ci" },
{ 38, "macce", "macce_general_ci" },
{ 39, "macroman", "macroman_general_ci" },
{ 40, "cp852", "cp852_general_ci" },
{ 41, "latin7", "latin7_general_ci" },
{ 20, "latin7", "latin7_estonian_cs" },
{ 57, "cp1256", "cp1256_general_ci" },
{ 59, "cp1257", "cp1257_general_ci" },
{ 63, "binary", "binary" },
{ 97, "eucjpms", "eucjpms_japanese_ci" },
{ 29, "cp1257", "cp1257_lithuanian_ci" },
{ 31, "latin1", "latin1_german2_ci" },
{ 34, "cp1250", "cp1250_czech_cs" },
{ 42, "latin7", "latin7_general_cs" },
{ 43, "macce", "macce_bin" },
{ 44, "cp1250", "cp1250_croatian_ci" },
{ 45, "utf8mb4", "utf8mb4_general_ci" },
{ 46, "utf8mb4", "utf8mb4_bin" },
{ 47, "latin1", "latin1_bin" },
{ 48, "latin1", "latin1_general_ci" },
{ 49, "latin1", "latin1_general_cs" },
{ 51, "cp1251", "cp1251_general_ci" },
{ 14, "cp1251", "cp1251_bulgarian_ci" },
{ 23, "cp1251", "cp1251_ukrainian_ci" },
{ 50, "cp1251", "cp1251_bin" },
{ 52, "cp1251", "cp1251_general_cs" },
{ 53, "macroman", "macroman_bin" },
{ 54, "utf16", "utf16_general_ci" },
{ 55, "utf16", "utf16_bin" },
{ 56, "utf16le", "utf16le_general_ci" },
{ 58, "cp1257", "cp1257_bin" },
{ 60, "utf32", "utf32_general_ci" },
{ 61, "utf32", "utf32_bin" },
{ 62, "utf16le", "utf16le_bin" },
{ 64, "armscii8", "armscii8_bin" },
{ 65, "ascii", "ascii_bin" },
{ 66, "cp1250", "cp1250_bin" },
{ 67, "cp1256", "cp1256_bin" },
{ 68, "cp866", "cp866_bin" },
{ 69, "dec8", "dec8_bin" },
{ 70, "greek", "greek_bin" },
{ 71, "hebrew", "hebrew_bin" },
{ 72, "hp8", "hp8_bin" },
{ 73, "keybcs2", "keybcs2_bin" },
{ 74, "koi8r", "koi8r_bin" },
{ 75, "koi8u", "koi8u_bin" },
{ 77, "latin2", "latin2_bin" },
{ 78, "latin5", "latin5_bin" },
{ 79, "latin7", "latin7_bin" },
{ 80, "cp850", "cp850_bin" },
{ 81, "cp852", "cp852_bin" },
{ 82, "swe7", "swe7_bin" },
{ 83, "utf8", "utf8_bin" },
{ 84, "big5", "big5_bin" },
{ 85, "euckr", "euckr_bin" },
{ 86, "gb2312", "gb2312_bin" },
{ 87, "gbk", "gbk_bin" },
{ 88, "sjis", "sjis_bin" },
{ 89, "tis620", "tis620_bin" },
{ 90, "ucs2", "ucs2_bin" },
{ 91, "ujis", "ujis_bin" },
{ 92, "geostd8", "geostd8_general_ci" },
{ 93, "geostd8", "geostd8_bin" },
{ 94, "latin1", "latin1_spanish_ci" },
{ 95, "cp932", "cp932_japanese_ci" },
{ 96, "cp932", "cp932_bin" },
{ 97, "eucjpms", "eucjpms_japanese_ci" },
{ 98, "eucjpms", "eucjpms_bin" },
{ 99, "cp1250", "cp1250_polish_ci" },
{ 128, "ucs2", "ucs2_unicode_ci" },
{ 129, "ucs2", "ucs2_icelandic_ci" },
{ 130, "ucs2", "ucs2_latvian_ci" },
{ 131, "ucs2", "ucs2_romanian_ci" },
{ 132, "ucs2", "ucs2_slovenian_ci" },
{ 133, "ucs2", "ucs2_polish_ci" },
{ 134, "ucs2", "ucs2_estonian_ci" },
{ 135, "ucs2", "ucs2_spanish_ci" },
{ 136, "ucs2", "ucs2_swedish_ci" },
{ 137, "ucs2", "ucs2_turkish_ci" },
{ 138, "ucs2", "ucs2_czech_ci" },
{ 139, "ucs2", "ucs2_danish_ci" },
{ 140, "ucs2", "ucs2_lithuanian_ci" },
{ 141, "ucs2", "ucs2_slovak_ci" },
{ 142, "ucs2", "ucs2_spanish2_ci" },
{ 143, "ucs2", "ucs2_roman_ci" },
{ 144, "ucs2", "ucs2_persian_ci" },
{ 145, "ucs2", "ucs2_esperanto_ci" },
{ 146, "ucs2", "ucs2_hungarian_ci" },
{ 147, "ucs2", "ucs2_sinhala_ci" },
{ 148, "ucs2", "ucs2_german2_ci" },
{ 149, "ucs2", "ucs2_croatian_ci" },
{ 150, "ucs2", "ucs2_unicode_520_ci" },
{ 151, "ucs2", "ucs2_vietnamese_ci" },
{ 160, "utf32", "utf32_unicode_ci" },
{ 161, "utf32", "utf32_icelandic_ci" },
{ 162, "utf32", "utf32_latvian_ci" },
{ 163, "utf32", "utf32_romanian_ci" },
{ 164, "utf32", "utf32_slovenian_ci" },
{ 165, "utf32", "utf32_polish_ci" },
{ 166, "utf32", "utf32_estonian_ci" },
{ 167, "utf32", "utf32_spanish_ci" },
{ 168, "utf32", "utf32_swedish_ci" },
{ 169, "utf32", "utf32_turkish_ci" },
{ 170, "utf32", "utf32_czech_ci" },
{ 171, "utf32", "utf32_danish_ci" },
{ 172, "utf32", "utf32_lithuanian_ci" },
{ 173, "utf32", "utf32_slovak_ci" },
{ 174, "utf32", "utf32_spanish2_ci" },
{ 175, "utf32", "utf32_roman_ci" },
{ 176, "utf32", "utf32_persian_ci" },
{ 177, "utf32", "utf32_esperanto_ci" },
{ 178, "utf32", "utf32_hungarian_ci" },
{ 179, "utf32", "utf32_sinhala_ci" },
{ 180, "utf32", "utf32_german2_ci" },
{ 181, "utf32", "utf32_croatian_ci" },
{ 182, "utf32", "utf32_unicode_520_ci" },
{ 183, "utf32", "utf32_vietnamese_ci" },
{ 192, "utf8", "utf8_unicode_ci" },
{ 193, "utf8", "utf8_icelandic_ci" },
{ 194, "utf8", "utf8_latvian_ci" },
{ 195, "utf8", "utf8_romanian_ci" },
{ 196, "utf8", "utf8_slovenian_ci" },
{ 197, "utf8", "utf8_polish_ci" },
{ 198, "utf8", "utf8_estonian_ci" },
{ 199, "utf8", "utf8_spanish_ci" },
{ 200, "utf8", "utf8_swedish_ci" },
{ 201, "utf8", "utf8_turkish_ci" },
{ 202, "utf8", "utf8_czech_ci" },
{ 203, "utf8", "utf8_danish_ci" },
{ 204, "utf8", "utf8_lithuanian_ci" },
{ 205, "utf8", "utf8_slovak_ci" },
{ 206, "utf8", "utf8_spanish2_ci" },
{ 207, "utf8", "utf8_roman_ci" },
{ 208, "utf8", "utf8_persian_ci" },
{ 209, "utf8", "utf8_esperanto_ci" },
{ 210, "utf8", "utf8_hungarian_ci" },
{ 211, "utf8", "utf8_sinhala_ci" },
{ 212, "utf8", "utf8_german2_ci" },
{ 213, "utf8", "utf8_croatian_ci" },
{ 214, "utf8", "utf8_unicode_520_ci" },
{ 215, "utf8", "utf8_vietnamese_ci" },
{ 224, "utf8mb4", "utf8mb4_unicode_ci" },
{ 225, "utf8mb4", "utf8mb4_icelandic_ci" },
{ 226, "utf8mb4", "utf8mb4_latvian_ci" },
{ 227, "utf8mb4", "utf8mb4_romanian_ci" },
{ 228, "utf8mb4", "utf8mb4_slovenian_ci" },
{ 229, "utf8mb4", "utf8mb4_polish_ci" },
{ 230, "utf8mb4", "utf8mb4_estonian_ci" },
{ 231, "utf8mb4", "utf8mb4_spanish_ci" },
{ 232, "utf8mb4", "utf8mb4_swedish_ci" },
{ 233, "utf8mb4", "utf8mb4_turkish_ci" },
{ 234, "utf8mb4", "utf8mb4_czech_ci" },
{ 235, "utf8mb4", "utf8mb4_danish_ci" },
{ 236, "utf8mb4", "utf8mb4_lithuanian_ci" },
{ 237, "utf8mb4", "utf8mb4_slovak_ci" },
{ 238, "utf8mb4", "utf8mb4_spanish2_ci" },
{ 239, "utf8mb4", "utf8mb4_roman_ci" },
{ 240, "utf8mb4", "utf8mb4_persian_ci" },
{ 241, "utf8mb4", "utf8mb4_esperanto_ci" },
{ 242, "utf8mb4", "utf8mb4_hungarian_ci" },
{ 243, "utf8mb4", "utf8mb4_sinhala_ci" },
{ 244, "utf8mb4", "utf8mb4_german2_ci" },
{ 245, "utf8mb4", "utf8mb4_croatian_ci" },
{ 246, "utf8mb4", "utf8mb4_unicode_520_ci" },
{ 247, "utf8mb4", "utf8mb4_vietnamese_ci" },
{ 248, "gb18030", "gb18030_chinese_ci" },
{ 249, "gb18030", "gb18030_bin" },
{ 254, "utf8", "utf8_general_cs" },
{ 0, NULL, NULL},
};
const charset_t *c = charsets;
while (c[0].nr)
{
if (!strcasecmp(c->name, name))
{
return c->nr;
}
++c;
}
return -1;
}
uint8_t get_static_type_size(uint8_t type)
{
static const uint8_t map[] =
{
0, // SW_MYSQL_TYPE_DECIMAL 0
sizeof(int8_t), // SW_MYSQL_TYPE_TINY 1
sizeof(int16_t), // SW_MYSQL_TYPE_SHORT 2
sizeof(int32_t), // SW_MYSQL_TYPE_LONG 3
sizeof(float), // SW_MYSQL_TYPE_FLOAT 4
sizeof(double), // SW_MYSQL_TYPE_DOUBLE 5
0, // SW_MYSQL_TYPE_NULL 6
0, // SW_MYSQL_TYPE_TIMESTAMP 7
sizeof(int64_t), // SW_MYSQL_TYPE_LONGLONG 8
sizeof(int32_t), // SW_MYSQL_TYPE_INT24 9
0, // SW_MYSQL_TYPE_DATE 10
0, // SW_MYSQL_TYPE_TIME 11
0, // SW_MYSQL_TYPE_DATETIME 12
sizeof(int16_t), // SW_MYSQL_TYPE_YEAR 13
0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0
};
SW_ASSERT(sizeof(map) == UINT8_MAX + 1);
return map[type];
}
static uint32_t sha1_password_with_nonce(char* buf, const char* nonce, const char* password)
{
char hash_0[20] = {0};
swoole_sha1(password, strlen(password), (uchar *) hash_0);
char hash_1[20] = {0};
swoole_sha1(hash_0, sizeof (hash_0), (uchar *) hash_1);
char str[40];
memcpy(str, nonce, 20);
memcpy(str + 20, hash_1, 20);
char hash_2[20];
swoole_sha1(str, sizeof (str), (uchar *) hash_2);
char hash_3[20];
int *a = (int *) hash_2;
int *b = (int *) hash_0;
int *c = (int *) hash_3;
int i;
for (i = 0; i < 5; i++)
{
c[i] = a[i] ^ b[i];
}
memcpy(buf, hash_3, 20);
return 20;
}
static uint32_t sha256_password_with_nonce(char* buf, const char* nonce, const char* password)
{
// XOR(SHA256(password), SHA256(SHA256(SHA256(password)), nonce))
char hashed[32], double_hashed[32];
swoole_sha256(password, strlen(password), (unsigned char *) hashed);
swoole_sha256(hashed, 32, (unsigned char *) double_hashed);
char combined[32 + SW_MYSQL_NONCE_LENGTH]; //double-hashed + nonce
memcpy(combined, double_hashed, 32);
memcpy(combined + 32, nonce, SW_MYSQL_NONCE_LENGTH);
char xor_bytes[32];
swoole_sha256(combined, 32 + SW_MYSQL_NONCE_LENGTH, (unsigned char *) xor_bytes);
int i;
for (i = 0; i < 32; i++)
{
hashed[i] ^= xor_bytes[i];
}
memcpy(buf, hashed, 32);
return 32;
}
/** @return: password length */
static sw_inline uint32_t mysql_auth_encrypt_dispatch(char *buf, const std::string auth_plugin_name, const char* nonce, const char *password)
{
if (auth_plugin_name.length() == 0 || auth_plugin_name == "mysql_native_password")
{
// mysql_native_password is default
return sha1_password_with_nonce(buf, nonce, password);
}
else if (auth_plugin_name == "caching_sha2_password")
{
return sha256_password_with_nonce(buf, nonce, password);
}
else
{
swWarn("Unknown auth plugin: %s", auth_plugin_name.c_str());
return 0;
}
}
eof_packet::eof_packet(const char *data) : server_packet(data)
{
swMysqlPacketDump(header.length, header.number, data, "EOF_Packet");
// EOF_Packet = Packet header (4 bytes) + 0xFE + warning(2byte) + status(2byte)
data += SW_MYSQL_PACKET_HEADER_SIZE;
// int<1> header [fe] EOF header
data += 1;
// int<2> warnings number of warnings
warning_count = sw_mysql_uint2korr2korr(data);
data += 2;
// int<2> status_flags Status Flags
server_status = sw_mysql_uint2korr2korr(data);
swTraceLog(SW_TRACE_MYSQL_CLIENT, "EOF_Packet, warnings=%u, status_code=%u", warning_count, server_status);
}
ok_packet::ok_packet(const char *data) : server_packet(data)
{
swMysqlPacketDump(header.length, header.number, data, "OK_Packet");
bool nul;
data += SW_MYSQL_PACKET_HEADER_SIZE;
// int<1> header [00] or [fe] the OK packet header
data += 1;
// int<lenenc> affected_rows affected rows
data += read_lcb(data, &affected_rows, &nul);
// int<lenenc> last_insert_id last insert id
data += read_lcb(data, &last_insert_id, &nul);
// int<2> status_flags status Flags
server_status = sw_mysql_uint2korr2korr(data);
data += 2;
// int<2> warnings number of warnings
warning_count = sw_mysql_uint2korr2korr(data);
// p += 2;
swTraceLog(
SW_TRACE_MYSQL_CLIENT, "OK_Packet, affected_rows=%" PRIu64 ", insert_id=%" PRIu64 ", status_flags=0x%08x, warnings=%u",
affected_rows, last_insert_id, server_status, warning_count
);
}
err_packet::err_packet(const char *data) : server_packet(data)
{
swMysqlPacketDump(header.length, header.number, data, "ERR_Packet");
// ERR Packet = Packet header (4 bytes) + ERR Payload
data += SW_MYSQL_PACKET_HEADER_SIZE;
// int<1> header [ff] header of the ERR packet
data += 1;
// int<2> error_code error-code
code = sw_mysql_uint2korr2korr(data);
data += 2;
// string[1] sql_state_marker # marker of the SQL State
data += 1;
// string[5] sql_state SQL State
memcpy(sql_state, data, 5);
sql_state[5] = '\0';
data += 5;
// string<EOF> error_message human readable error message
msg = std::string(data, header.length - 9);
swTraceLog(SW_TRACE_MYSQL_CLIENT, "ERR_Packet, error_code=%u, sql_state=%s, status_msg=[%s]", code, sql_state, msg.c_str());
};
greeting_packet::greeting_packet(const char *data) : server_packet(data)
{
swMysqlPacketDump(header.length, header.number, data, "Protocol::HandshakeGreeting");
/**
1 [0a] protocol version
string[NUL] server version
4 connection id
string[8] auth-plugin-data-part-1
1 [00] filler
2 capability flags (lower 2 bytes)
if more data in the packet:
1 character set
2 status flags
2 capability flags (upper 2 bytes)
if capabilities & CLIENT_PLUGIN_AUTH {
1 length of auth-plugin-data
} else {
1 [00]
}
string[10] reserved (all [00])
if capabilities & CLIENT_SECURE_CONNECTION {
string[$len] auth-plugin-data-part-2 ($len=MAX(13, length of auth-plugin-data - 8))
if capabilities & CLIENT_PLUGIN_AUTH {
string[NUL] auth-plugin name
}
*/
const char *p = data + SW_MYSQL_PACKET_HEADER_SIZE;
// 1 [0a] protocol version
protocol_version = *p;
p++;
// x server version
server_version = std::string(p);
p += server_version.length() + 1;
// 4 connection id
connection_id = *((int *) p);
p += 4;
// string[8] auth-plugin-data-part-1
memcpy(auth_plugin_data, p, 8);
p += 8;
// 1 [00] filler
filler = *p;
p += 1;
// 2 capability flags (lower 2 bytes)
memcpy(((char *) (&capability_flags)), p, 2);
p += 2;
if (p < data + header.length)
{
// 1 character set
charset = *p;
p += 1;
// 2 status flags
memcpy(&status_flags, p, 2);
p += 2;
// 2 capability flags (upper 2 bytes)
memcpy(((char *) (&capability_flags) + 2), p, 2);
p += 2;
// 1 auth plugin data length
auth_plugin_data_length = (uint8_t) *p;
p += 1;
// x reserved
memcpy(&reserved, p, sizeof(reserved));
p += sizeof(reserved);
if (capability_flags & SW_MYSQL_CLIENT_SECURE_CONNECTION)
{
uint8_t len = SW_MAX(13, auth_plugin_data_length - 8);
memcpy(auth_plugin_data + 8, p, len);
p += len;
}
if (capability_flags & SW_MYSQL_CLIENT_PLUGIN_AUTH)
{
auth_plugin_name = std::string(p, strlen(p));
swTraceLog(SW_TRACE_MYSQL_CLIENT, "use %s auth plugin", auth_plugin_name.c_str());
}
}
swTraceLog(
SW_TRACE_MYSQL_CLIENT, "Server protocol=%d, version=%s, connection_id=%d, capabilites=0x%08x, status=%u, auth_plugin_name=%s, auth_plugin_data=L%u[%s]",
protocol_version, server_version.c_str(), connection_id, capability_flags, status_flags, auth_plugin_name.c_str(), auth_plugin_data_length, auth_plugin_data
);
};
login_packet::login_packet(
greeting_packet *greeting_packet,
const std::string user,
const std::string password,
std::string database,
char charset
)
{
char *p = data.body;
uint32_t tint;
// capability flags, CLIENT_PROTOCOL_41 always set
tint = SW_MYSQL_CLIENT_LONG_PASSWORD |
SW_MYSQL_CLIENT_PROTOCOL_41 |
SW_MYSQL_CLIENT_SECURE_CONNECTION |
SW_MYSQL_CLIENT_CONNECT_WITH_DB |
SW_MYSQL_CLIENT_PLUGIN_AUTH |
SW_MYSQL_CLIENT_MULTI_RESULTS;
memcpy(p, &tint, sizeof(tint));
p += sizeof(tint);
swTraceLog(SW_TRACE_MYSQL_CLIENT, "Client capabilites=0x%08x", tint);
// max-packet size
tint = 300;
memcpy(p, &tint, sizeof(tint));
p += sizeof(tint);
swTraceLog(SW_TRACE_MYSQL_CLIENT, "Client max packet=%u", tint);
// use the server character_set when the character_set is not set.
*p = charset ? charset : greeting_packet->charset;
p += 1;
// string[23] reserved (all [0])
p += 23;
// string[NUL] username
strcpy(p, user.c_str());
p += (user.length() + 1);
// string[NUL] password
if (password.length() > 0)
{
*p = mysql_auth_encrypt_dispatch(
p + 1,
greeting_packet->auth_plugin_name,
greeting_packet->auth_plugin_data,
password.c_str()
);
}
else
{
*p = 0;
}
swTraceLog(
SW_TRACE_MYSQL_CLIENT, "Client charset=%u, user=%s, password=%s, hased=L%d[%.*s], database=%s, auth_plugin_name=%s",
charset, user.c_str(), password.c_str(), (int) *p, (int) *p, p + 1, database.c_str(), greeting_packet->auth_plugin_name.c_str()
);
p += (((uint32_t) *p) + 1);
// string[NUL] database
strcpy(p, database.c_str());
p += (database.length() + 1);
// string[NUL] auth plugin name
strcpy(p, greeting_packet->auth_plugin_name.c_str());
p += (greeting_packet->auth_plugin_name.length() + 1);
// packet header
set_header(p - data.body, greeting_packet->header.number + 1);
swMysqlPacketDump(get_length(), get_number(), get_data(), "Protocol::HandshakeLogin");
}
auth_switch_request_packet::auth_switch_request_packet(const char *data) : server_packet(data)
{
swMysqlPacketDump(header.length, header.number, data, "Protocol::AuthSwitchRequest");
// 4 header
data += SW_MYSQL_PACKET_HEADER_SIZE;
// 1 type
data += 1;
// string[NUL] auth_method_name
auth_method_name = std::string(data);
data += (auth_method_name.length() + 1);
// string[NUL] auth_method_data
strcpy(auth_method_data, data);
swTraceLog(SW_TRACE_MYSQL_CLIENT, "auth switch plugin name=%s", auth_method_name.c_str());
}
auth_switch_response_packet::auth_switch_response_packet(auth_switch_request_packet *req, const std::string password)
{
// if auth switch is triggered, password can't be empty
// create auth switch response packet
set_header(
mysql_auth_encrypt_dispatch(
data.body,
req->auth_method_name,
req->auth_method_data,
password.c_str()
),
req->header.number + 1
);
swMysqlPacketDump(get_length(), get_number(), get_data(), "Protocol::AuthSignatureResponse");
}
// Caching sha2 authentication. Public key request and send encrypted password
// http://dev.mysql.com/doc/internals/en/connection-phase-packets.html#packet-Protocol::AuthSwitchResponse
auth_signature_response_packet::auth_signature_response_packet(
raw_data_packet *raw_data_pakcet,
const std::string password,
const char *auth_plugin_data
)
{
#ifndef SW_MYSQL_RSA_SUPPORT
{
swWarn(SW_MYSQL_NO_RSA_ERROR);
#else
if (0)
{
_error:
#endif
data.body[0] = SW_MYSQL_AUTH_SIGNATURE_ERROR;
set_header(1, raw_data_pakcet->header.number + 1);
return;
}
#ifdef SW_MYSQL_RSA_SUPPORT
const char *tmp = raw_data_pakcet->body;
uint32_t rsa_public_key_length = raw_data_pakcet->header.length;
while (tmp[0] != 0x2d)
{
tmp++; // ltrim
rsa_public_key_length--;
}
char rsa_public_key[rsa_public_key_length + 1]; //rsa + '\0'
memcpy((char *)rsa_public_key, tmp, rsa_public_key_length);
rsa_public_key[rsa_public_key_length] = '\0';
swTraceLog(SW_TRACE_MYSQL_CLIENT, "rsa_public_key_length=%d;\nrsa_public_key=[%.*s]", rsa_public_key_length, rsa_public_key_length, rsa_public_key);
size_t password_bytes_length = password.length() + 1;
unsigned char password_bytes[password_bytes_length];
// copy NUL terminator to password to stack
strcpy((char *) password_bytes, password.c_str());
// XOR the password bytes with the challenge
for (size_t i = 0; i < password_bytes_length; i++) // include '\0' byte
{
password_bytes[i] ^= auth_plugin_data[i % SW_MYSQL_NONCE_LENGTH];
}
// prepare RSA public key
BIO *bio = NULL;
RSA *public_rsa = NULL;
if (unlikely((bio = BIO_new_mem_buf((void *)rsa_public_key, -1)) == NULL))
{
swWarn("BIO_new_mem_buf publicKey error!");
goto _error;
}
// PEM_read_bio_RSA_PUBKEY
ERR_clear_error();
if (unlikely((public_rsa = PEM_read_bio_RSA_PUBKEY(bio, NULL, NULL, NULL)) == NULL))
{
char err_buf[512];
ERR_load_crypto_strings();
ERR_error_string_n(ERR_get_error(), err_buf, sizeof(err_buf));
swWarn("[PEM_read_bio_RSA_PUBKEY ERROR]: %s", err_buf);
goto _error;
}
BIO_free_all(bio);
// encrypt with RSA public key
int rsa_len = RSA_size(public_rsa);
unsigned char encrypt_msg[rsa_len];
// RSA_public_encrypt
ERR_clear_error();
size_t flen = rsa_len - 42;
flen = password_bytes_length > flen ? flen : password_bytes_length;
swTraceLog(SW_TRACE_MYSQL_CLIENT, "rsa_len=%d", rsa_len);
if (unlikely(RSA_public_encrypt(flen, (const unsigned char *) password_bytes, (unsigned char *) encrypt_msg, public_rsa, RSA_PKCS1_OAEP_PADDING) < 0))
{
char err_buf[512];
ERR_load_crypto_strings();
ERR_error_string_n(ERR_get_error(), err_buf, sizeof(err_buf));
swWarn("[RSA_public_encrypt ERROR]: %s", err_buf);
goto _error;
}
RSA_free(public_rsa);
memcpy(data.body, (char *)encrypt_msg, rsa_len); // copy rsa to buf
set_header(rsa_len, raw_data_pakcet->header.number + 1);
swMysqlPacketDump(get_length(), get_number(), get_data(), "Protocol::AuthSignatureResponse");
#endif
}
void field_packet::parse(const char *data)
{
server_packet::parse(data);
bool nul = false;
char *p = body = new char[header.length];
memcpy(body, data + SW_MYSQL_PACKET_HEADER_SIZE, header.length);
// catalog
p += read_lcb(p, &catalog_length, &nul);
catalog = p;
p += catalog_length;
// database
p += read_lcb(p, &database_length, &nul);
database = p;
p += database_length;
// table
p += read_lcb(p, &table_length, &nul);
table = p;
p += table_length;
// origin table
p += read_lcb(p, &org_table_length, &nul);
org_table = p;
p += org_table_length;
// name
p += read_lcb(p, &name_length, &nul);
name = p;
p += name_length;
// origin table
p += read_lcb(p, &org_name_length, &nul);
org_name = p;
p += org_name_length;
// filler
p += 1;
// charset
charset = sw_mysql_uint2korr2korr(p);
p += 2;
// binary length
length = sw_mysql_uint2korr4korr(p);
p += 4;
// field type
type = (uint8_t) *p;
p += 1;
// flags
flags = sw_mysql_uint2korr2korr(p);
p += 2;
/* decimals */
decimals = *p;
p += 1;
/* filler */
p += 2;
/* default - a priori facultatif */
if (p < body + header.length)
{
p += read_lcb(p, &def_length, &nul);
def = p;
p += def_length;
}
swMysqlPacketDump(header.length, header.number, data, (*name == '?' ? "Protocol::Param": "Protocol::Field"));
swTraceLog(
SW_TRACE_MYSQL_CLIENT,
"catalog=%.*s, database=%.*s, table=%.*s, org_table=%.*s, name=%.*s, org_name=%.*s,"
"charset=%u, binary_length=%" PRIu64 ", type=%u, flags=0x%08x, decimals=%u, def=[%.*s]",
catalog_length, catalog, database_length, database,
table_length, table, org_table_length, org_table,
name_length, name, org_name_length, org_name,
charset, length, type, flags, decimals, def_length, def
);
}
}
}

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