From 5e8fc20355e139d4fd81ab1faad7e564e55fef29 Mon Sep 17 00:00:00 2001 From: brain Date: Mon, 4 Dec 2006 20:41:02 +0000 Subject: Header for md5 request classes git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@5849 e03df62e-2008-0410-955e-edbf42e46eb7 --- src/modules/m_opermd5.cpp | 268 +++------------------------------------------- 1 file changed, 17 insertions(+), 251 deletions(-) (limited to 'src/modules/m_opermd5.cpp') diff --git a/src/modules/m_opermd5.cpp b/src/modules/m_opermd5.cpp index e4d494ffc..b20a9362f 100644 --- a/src/modules/m_opermd5.cpp +++ b/src/modules/m_opermd5.cpp @@ -18,259 +18,22 @@ using namespace std; -#include #include "inspircd_config.h" -#ifdef HAS_STDINT -#include -#endif #include "users.h" #include "channels.h" #include "modules.h" - #include "inspircd.h" -/* The four core functions - F1 is optimized somewhat */ -#define F1(x, y, z) (z ^ (x & (y ^ z))) -#define F2(x, y, z) F1(z, x, y) -#define F3(x, y, z) (x ^ y ^ z) -#define F4(x, y, z) (y ^ (x | ~z)) - -/* This is the central step in the MD5 algorithm. */ -#define MD5STEP(f,w,x,y,z,in,s) \ - (w += f(x,y,z) + in, w = (w<>(32-s)) + x) - -#ifndef HAS_STDINT -typedef unsigned int uint32_t; -#endif - -typedef uint32_t word32; /* NOT unsigned long. We don't support 16 bit platforms, anyway. */ -typedef unsigned char byte; - -/** An MD5 context, used by m_opermd5 - */ -class MD5Context : public classbase -{ - public: - word32 buf[4]; - word32 bytes[2]; - word32 in[16]; -}; - -void MD5Init(struct MD5Context *context); -void MD5Update(struct MD5Context *context, byte const *buf, int len); -void MD5Final(byte digest[16], struct MD5Context *context); -void MD5Transform(word32 buf[4], word32 const in[16]); -void MyMD5(void *dest, void *orig, int len); -void GenHash(const char* src, char* dest); - -void byteSwap(word32 *buf, unsigned words) -{ - byte *p = (byte *)buf; - - do - { - *buf++ = (word32)((unsigned)p[3] << 8 | p[2]) << 16 | - ((unsigned)p[1] << 8 | p[0]); - p += 4; - } while (--words); -} - -/* XXX - maybe if we had an md5/encryption moduletype? *shrug* */ -void MD5Init(struct MD5Context *ctx) -{ - ctx->buf[0] = 0x67452301; - ctx->buf[1] = 0xefcdab89; - ctx->buf[2] = 0x98badcfe; - ctx->buf[3] = 0x10325476; - - ctx->bytes[0] = 0; - ctx->bytes[1] = 0; -} - -void MD5Update(struct MD5Context *ctx, byte const *buf, int len) -{ - word32 t; - - /* Update byte count */ - - t = ctx->bytes[0]; - if ((ctx->bytes[0] = t + len) < t) - ctx->bytes[1]++; /* Carry from low to high */ - - t = 64 - (t & 0x3f); /* Space available in ctx->in (at least 1) */ - if ((unsigned)t > (unsigned)len) - { - memcpy((byte *)ctx->in + 64 - (unsigned)t, buf, len); - return; - } - /* First chunk is an odd size */ - memcpy((byte *)ctx->in + 64 - (unsigned)t, buf, (unsigned)t); - byteSwap(ctx->in, 16); - MD5Transform(ctx->buf, ctx->in); - buf += (unsigned)t; - len -= (unsigned)t; - - /* Process data in 64-byte chunks */ - while (len >= 64) - { - memcpy(ctx->in, buf, 64); - byteSwap(ctx->in, 16); - MD5Transform(ctx->buf, ctx->in); - buf += 64; - len -= 64; - } - - /* Handle any remaining bytes of data. */ - memcpy(ctx->in, buf, len); -} - -void MD5Final(byte digest[16], struct MD5Context *ctx) -{ - int count = (int)(ctx->bytes[0] & 0x3f); /* Bytes in ctx->in */ - byte *p = (byte *)ctx->in + count; /* First unused byte */ - - /* Set the first char of padding to 0x80. There is always room. */ - *p++ = 0x80; - - /* Bytes of padding needed to make 56 bytes (-8..55) */ - count = 56 - 1 - count; - - if (count < 0) - { /* Padding forces an extra block */ - memset(p, 0, count+8); - byteSwap(ctx->in, 16); - MD5Transform(ctx->buf, ctx->in); - p = (byte *)ctx->in; - count = 56; - } - memset(p, 0, count+8); - byteSwap(ctx->in, 14); - - /* Append length in bits and transform */ - ctx->in[14] = ctx->bytes[0] << 3; - ctx->in[15] = ctx->bytes[1] << 3 | ctx->bytes[0] >> 29; - MD5Transform(ctx->buf, ctx->in); - - byteSwap(ctx->buf, 4); - memcpy(digest, ctx->buf, 16); - memset(ctx, 0, sizeof(ctx)); -} - -void MD5Transform(word32 buf[4], word32 const in[16]) -{ - register word32 a, b, c, d; - - a = buf[0]; - b = buf[1]; - c = buf[2]; - d = buf[3]; - - MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7); - MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12); - MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17); - MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22); - MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7); - MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12); - MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17); - MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22); - MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7); - MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12); - MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17); - MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22); - MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7); - MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12); - MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17); - MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22); - - MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5); - MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9); - MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14); - MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20); - MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5); - MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9); - MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14); - MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20); - MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5); - MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9); - MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14); - MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20); - MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5); - MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9); - MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14); - MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20); - - MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4); - MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11); - MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16); - MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23); - MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4); - MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11); - MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16); - MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23); - MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4); - MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11); - MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16); - MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23); - MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4); - MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11); - MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16); - MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23); - - MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6); - MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10); - MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15); - MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21); - MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6); - MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10); - MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15); - MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21); - MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6); - MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10); - MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15); - MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21); - MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6); - MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10); - MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15); - MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21); - - buf[0] += a; - buf[1] += b; - buf[2] += c; - buf[3] += d; -} - - -void MyMD5(void *dest, void *orig, int len) -{ - struct MD5Context context; - - MD5Init(&context); - MD5Update(&context, (const unsigned char*)orig, len); - MD5Final((unsigned char*)dest, &context); -} - - -void GenHash(const char* src, char* dest) -{ - unsigned char bytes[16]; - const char* xtab = "0123456789abcdef"; - - MyMD5((char*)bytes,(void*)src,strlen(src)); - - for (int i = 0; i < 16; i++) - { - *dest++ = xtab[bytes[i] / 16]; - *dest++ = xtab[bytes[i] % 16]; - } - *dest++ = 0; -} +#include "m_md5.h" -/** Handle /MKPASSWD +/* Handle /MKPASSWD */ class cmd_mkpasswd : public command_t { + Module* MD5Provider; + Module* Sender; public: - cmd_mkpasswd (InspIRCd* Instance) : command_t(Instance,"MKPASSWD", 'o', 1) + cmd_mkpasswd (InspIRCd* Instance, Module* Sender, Module* MD5) : command_t(Instance,"MKPASSWD", 'o', 1), MD5Provider(MD5) { this->source = "m_opermd5.so"; syntax = ""; @@ -278,9 +41,8 @@ class cmd_mkpasswd : public command_t CmdResult Handle (const char** parameters, int pcnt, userrec *user) { - char buffer[MAXBUF]; - GenHash(parameters[0],buffer); - user->WriteServ("NOTICE %s :MD5 hashed password for %s is %s",user->nick,parameters[0],buffer); + MD5ResetRequest(Sender, MD5Provider).Send(); + user->WriteServ("NOTICE %s :MD5 hashed password for %s is %s",user->nick,parameters[0], MD5SumRequest(Sender, MD5Provider, parameters[0]).Send() ); return CMD_SUCCESS; } }; @@ -289,13 +51,18 @@ class ModuleOperMD5 : public Module { cmd_mkpasswd* mycommand; + Module* MD5Provider; + public: ModuleOperMD5(InspIRCd* Me) : Module::Module(Me) { - - mycommand = new cmd_mkpasswd(ServerInstance); + MD5Provider = ServerInstance->FindModule("m_md5.so"); + if (!MD5Provider) + throw ModuleException("Can't find m_md5.so. Please load m_md5.so before m_opermd5.so."); + + mycommand = new cmd_mkpasswd(ServerInstance, this, MD5Provider); ServerInstance->AddCommand(mycommand); } @@ -310,11 +77,10 @@ class ModuleOperMD5 : public Module virtual int OnOperCompare(const std::string &data, const std::string &input) { - char buffer[MAXBUF]; - if (data.length() == 32) // if its 32 chars long, try it as an md5 + MD5ResetRequest(this, MD5Provider).Send(); + if (data.length() == 32) // if its 32 chars long, try it as an md5 { - GenHash(input.c_str(),buffer); - if (!strcasecmp(data.c_str(),buffer)) + if (!strcasecmp(data.c_str(), MD5SumRequest(this, MD5Provider, input.c_str()).Send())) { return 1; } -- cgit v1.2.3