remove old shadowsockcs-libev
This commit is contained in:
@@ -1,10 +0,0 @@
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#ifndef _ANDROID_H
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#define _ANDROID_H
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#include <android/log.h>
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#define LOGD(...) ((void)__android_log_print(ANDROID_LOG_DEBUG, "shadowsocks", __VA_ARGS__))
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#define LOGE(...) ((void)__android_log_print(ANDROID_LOG_ERROR, "shadowsocks", __VA_ARGS__))
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#define perror(a) (LOGE("%s: %s", a, strerror(errno)))
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#endif // _ANDROID_H
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@@ -1,182 +0,0 @@
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#include "encrypt.h"
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#include "android.h"
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#define OFFSET_ROL(p, o) ((u_int64_t)(*(p + o)) << (8 * o))
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static int random_compare(const void *_x, const void *_y) {
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uint32_t i = _i;
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uint64_t a = _a;
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uint8_t x = *((uint8_t *) _x);
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uint8_t y = *((uint8_t*) _y);
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return (a % (x + i) - a % (y + i));
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}
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static void md5(const uint8_t *text, uint8_t *digest) {
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md5_state_t state;
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md5_init(&state);
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md5_append(&state, text, strlen((char*)text));
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md5_finish(&state, digest);
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}
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static void merge(uint8_t *left, int llength, uint8_t *right, int rlength) {
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/* Temporary memory locations for the 2 segments of the array to merge. */
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uint8_t *ltmp = (uint8_t *) malloc(llength * sizeof(uint8_t));
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uint8_t *rtmp = (uint8_t *) malloc(rlength * sizeof(uint8_t));
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/*
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* Pointers to the elements being sorted in the temporary memory locations.
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*/
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uint8_t *ll = ltmp;
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uint8_t *rr = rtmp;
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uint8_t *result = left;
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/*
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* Copy the segment of the array to be merged into the temporary memory
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* locations.
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*/
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memcpy(ltmp, left, llength * sizeof(uint8_t));
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memcpy(rtmp, right, rlength * sizeof(uint8_t));
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while (llength > 0 && rlength > 0) {
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if (random_compare(ll, rr) <= 0) {
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/*
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* Merge the first element from the left back into the main array
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* if it is smaller or equal to the one on the right.
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*/
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*result = *ll;
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++ll;
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--llength;
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} else {
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/*
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* Merge the first element from the right back into the main array
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* if it is smaller than the one on the left.
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*/
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*result = *rr;
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++rr;
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--rlength;
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}
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++result;
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}
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/*
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* All the elements from either the left or the right temporary array
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* segment have been merged back into the main array. Append the remaining
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* elements from the other temporary array back into the main array.
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*/
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if (llength > 0)
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while (llength > 0) {
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/* Appending the rest of the left temporary array. */
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*result = *ll;
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++result;
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++ll;
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--llength;
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}
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else
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while (rlength > 0) {
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/* Appending the rest of the right temporary array. */
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*result = *rr;
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++result;
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++rr;
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--rlength;
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}
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/* Release the memory used for the temporary arrays. */
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free(ltmp);
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free(rtmp);
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}
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static void merge_sort(uint8_t array[], int length) {
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/* This is the middle index and also the length of the right array. */
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uint8_t middle;
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/*
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* Pointers to the beginning of the left and right segment of the array
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* to be merged.
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*/
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uint8_t *left, *right;
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/* Length of the left segment of the array to be merged. */
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int llength;
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if (length <= 1)
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return;
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/* Let integer division truncate the value. */
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middle = length / 2;
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llength = length - middle;
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/*
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* Set the pointers to the appropriate segments of the array to be merged.
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*/
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left = array;
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right = array + llength;
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merge_sort(left, llength);
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merge_sort(right, middle);
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merge(left, llength, right, middle);
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}
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void encrypt(char *buf, int len, struct rc4_state *ctx) {
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if (ctx != NULL) {
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rc4_crypt(ctx, (uint8_t*) buf, (uint8_t*) buf, len);
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} else {
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char *end = buf + len;
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while (buf < end) {
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*buf = (char)enc_ctx.table.encrypt_table[(uint8_t)*buf];
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buf++;
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}
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}
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}
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void decrypt(char *buf, int len, struct rc4_state *ctx) {
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if (ctx != NULL) {
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rc4_crypt(ctx, (uint8_t*) buf, (uint8_t*) buf, len);
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} else {
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char *end = buf + len;
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while (buf < end) {
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*buf = (char)enc_ctx.table.decrypt_table[(uint8_t)*buf];
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buf++;
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}
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}
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}
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void enc_ctx_init(struct rc4_state *ctx, int enc) {
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uint8_t *key = enc_ctx.rc4.key;
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int key_len = enc_ctx.rc4.key_len;
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rc4_init(ctx, key, key_len);
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}
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void enc_key_init(const char *pass) {
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enc_ctx.rc4.key_len = 16;
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enc_ctx.rc4.key = malloc(16);
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md5((const uint8_t*)pass, enc_ctx.rc4.key);
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}
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void get_table(const char *pass) {
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uint8_t *enc_table = malloc(256);
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uint8_t *dec_table = malloc(256);
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uint8_t digest[16];
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uint32_t i;
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md5((const uint8_t*)pass, digest);
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for (i = 0; i < 8; i++) {
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_a += OFFSET_ROL(digest, i);
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}
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for(i = 0; i < 256; ++i) {
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enc_table[i] = i;
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}
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for(i = 1; i < 1024; ++i) {
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_i = i;
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merge_sort(enc_table, 256);
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}
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for(i = 0; i < 256; ++i) {
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// gen decrypt table from encrypt table
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dec_table[enc_table[i]] = i;
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}
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enc_ctx.table.encrypt_table = enc_table;
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enc_ctx.table.decrypt_table = dec_table;
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}
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@@ -1,39 +0,0 @@
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#ifndef _ENCRYPT_H
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#define _ENCRYPT_H
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#include <sys/socket.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "md5.h"
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#include "rc4.h"
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#define BUF_SIZE 4096
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#define TABLE 0
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#define RC4 1
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union {
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struct {
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uint8_t *encrypt_table;
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uint8_t *decrypt_table;
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} table;
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struct {
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uint8_t *key;
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int key_len;
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} rc4;
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} enc_ctx;
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void get_table(const char* key);
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void encrypt(char *buf, int len, struct rc4_state *ctx);
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void decrypt(char *buf, int len, struct rc4_state *ctx);
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void enc_ctx_init(struct rc4_state *ctx, int enc);
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void enc_key_init(const char *pass);
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unsigned int _i;
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unsigned long long _a;
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int _method;
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#endif // _ENCRYPT_H
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@@ -1,723 +0,0 @@
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <arpa/inet.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <locale.h>
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#include <netdb.h>
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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#include <pthread.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <strings.h>
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#include <time.h>
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#include <unistd.h>
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#include <assert.h>
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#include <linux/limits.h>
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#include "local.h"
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#include "socks5.h"
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#include "android.h"
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#define min(a,b) (((a)<(b))?(a):(b))
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static char *_server;
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static char *_remote_port;
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static int _timeout;
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int setnonblocking(int fd) {
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int flags;
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if (-1 ==(flags = fcntl(fd, F_GETFL, 0)))
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flags = 0;
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return fcntl(fd, F_SETFL, flags | O_NONBLOCK);
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}
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int create_and_bind(const char *port) {
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struct addrinfo hints;
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struct addrinfo *result, *rp;
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int s, listen_sock;
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memset(&hints, 0, sizeof(struct addrinfo));
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hints.ai_family = AF_UNSPEC; /* Return IPv4 and IPv6 choices */
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hints.ai_socktype = SOCK_STREAM; /* We want a TCP socket */
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s = getaddrinfo("0.0.0.0", port, &hints, &result);
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if (s != 0) {
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LOGD("getaddrinfo: %s", gai_strerror(s));
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return -1;
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}
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for (rp = result; rp != NULL; rp = rp->ai_next) {
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listen_sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
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if (listen_sock < 0)
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continue;
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int opt = 1;
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int err = setsockopt(listen_sock, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt));
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if (err) {
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perror("setsocket");
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}
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s = bind(listen_sock, rp->ai_addr, rp->ai_addrlen);
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if (s == 0) {
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/* We managed to bind successfully! */
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break;
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} else {
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perror("bind");
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}
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close(listen_sock);
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}
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if (rp == NULL) {
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LOGE("Could not bind");
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return -1;
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}
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freeaddrinfo(result);
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return listen_sock;
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}
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void server_recv_cb (EV_P_ ev_io *w, int revents) {
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struct server_ctx *server_recv_ctx = (struct server_ctx *)w;
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struct server *server = server_recv_ctx->server;
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struct remote *remote = server->remote;
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if (remote == NULL) {
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close_and_free_server(EV_A_ server);
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return;
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}
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while (1) {
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char *buf = remote->buf;
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int *buf_len = &remote->buf_len;
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if (server->stage != 5) {
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buf = server->buf;
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buf_len = &server->buf_len;
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}
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ssize_t r = recv(server->fd, buf, BUF_SIZE, 0);
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if (r == 0) {
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// connection closed
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*buf_len = 0;
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close_and_free_remote(EV_A_ remote);
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close_and_free_server(EV_A_ server);
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return;
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} else if(r < 0) {
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if (errno == EAGAIN) {
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// no data
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// continue to wait for recv
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break;
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} else {
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perror("server recv");
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close_and_free_remote(EV_A_ remote);
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close_and_free_server(EV_A_ server);
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return;
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}
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}
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// local socks5 server
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if (server->stage == 5) {
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encrypt(remote->buf, r, server->e_ctx);
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int w = send(remote->fd, remote->buf, r, 0);
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if(w < 0) {
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if (errno == EAGAIN) {
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// no data, wait for send
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remote->buf_len = r;
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ev_io_stop(EV_A_ &server_recv_ctx->io);
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ev_io_start(EV_A_ &remote->send_ctx->io);
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break;
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} else {
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perror("send");
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close_and_free_remote(EV_A_ remote);
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close_and_free_server(EV_A_ server);
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return;
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}
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} else if(w < r) {
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char *pt = remote->buf;
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char *et = pt + r;
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while (pt + w < et) {
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*pt = *(pt + w);
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pt++;
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}
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remote->buf_len = r - w;
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assert(remote->buf_len >= 0);
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ev_io_stop(EV_A_ &server_recv_ctx->io);
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ev_io_start(EV_A_ &remote->send_ctx->io);
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break;
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}
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} else if (server->stage == 0) {
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struct method_select_response response;
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response.ver = VERSION;
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response.method = 0;
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char *send_buf = (char *)&response;
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send(server->fd, send_buf, sizeof(response), 0);
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server->stage = 1;
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return;
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} else if (server->stage == 1) {
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struct socks5_request *request = (struct socks5_request *)server->buf;
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if (request->cmd != 1) {
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LOGE("unsupported cmd: %d\n", request->cmd);
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struct socks5_response response;
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response.ver = VERSION;
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response.rep = CMD_NOT_SUPPORTED;
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response.rsv = 0;
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response.atyp = 1;
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char *send_buf = (char *)&response;
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send(server->fd, send_buf, 4, 0);
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close_and_free_remote(EV_A_ remote);
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close_and_free_server(EV_A_ server);
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return;
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}
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char addr_to_send[256];
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uint8_t addr_len = 0;
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addr_to_send[addr_len++] = request->atyp;
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// get remote addr and port
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if (request->atyp == 1) {
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// IP V4
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size_t in_addr_len = sizeof(struct in_addr);
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memcpy(addr_to_send + addr_len, server->buf + 4, in_addr_len + 2);
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addr_len += in_addr_len + 2;
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} else if (request->atyp == 3) {
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// Domain name
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uint8_t name_len = *(uint8_t *)(server->buf + 4);
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addr_to_send[addr_len++] = name_len;
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memcpy(addr_to_send + addr_len, server->buf + 4 + 1, name_len);
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addr_len += name_len;
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// get port
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addr_to_send[addr_len++] = *(uint8_t *)(server->buf + 4 + 1 + name_len);
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addr_to_send[addr_len++] = *(uint8_t *)(server->buf + 4 + 1 + name_len + 1);
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} else {
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LOGE("unsupported addrtype: %d\n", request->atyp);
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close_and_free_remote(EV_A_ remote);
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close_and_free_server(EV_A_ server);
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return;
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}
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encrypt(addr_to_send, addr_len, server->e_ctx);
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send(remote->fd, addr_to_send, addr_len, 0);
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// Fake reply
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struct socks5_response response;
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response.ver = VERSION;
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response.rep = 0;
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response.rsv = 0;
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response.atyp = 1;
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struct in_addr sin_addr;
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inet_aton("0.0.0.0", &sin_addr);
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memcpy(server->buf, &response, 4);
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memcpy(server->buf + 4, &sin_addr, sizeof(struct in_addr));
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*((unsigned short *)(server->buf + 4 + sizeof(struct in_addr)))
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= (unsigned short) htons(atoi(_remote_port));
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int reply_size = 4 + sizeof(struct in_addr) + sizeof(unsigned short);
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int r = send(server->fd, server->buf, reply_size, 0);
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if (r < reply_size) {
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LOGE("header not complete sent\n");
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close_and_free_remote(EV_A_ remote);
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close_and_free_server(EV_A_ server);
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return;
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}
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server->stage = 5;
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}
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}
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}
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void server_send_cb (EV_P_ ev_io *w, int revents) {
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struct server_ctx *server_send_ctx = (struct server_ctx *)w;
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struct server *server = server_send_ctx->server;
|
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struct remote *remote = server->remote;
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if (server->buf_len == 0) {
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// close and free
|
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close_and_free_remote(EV_A_ remote);
|
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close_and_free_server(EV_A_ server);
|
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return;
|
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} else {
|
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// has data to send
|
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ssize_t r = send(server->fd, server->buf,
|
||||
server->buf_len, 0);
|
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if (r < 0) {
|
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if (errno != EAGAIN) {
|
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perror("send");
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close_and_free_remote(EV_A_ remote);
|
||||
close_and_free_server(EV_A_ server);
|
||||
}
|
||||
return;
|
||||
}
|
||||
if (r < server->buf_len) {
|
||||
// partly sent, move memory, wait for the next time to send
|
||||
char *pt = server->buf;
|
||||
char *et = pt + server->buf_len;
|
||||
while (pt + r < et) {
|
||||
*pt = *(pt + r);
|
||||
pt++;
|
||||
}
|
||||
server->buf_len -= r;
|
||||
assert(server->buf_len >= 0);
|
||||
return;
|
||||
} else {
|
||||
// all sent out, wait for reading
|
||||
ev_io_stop(EV_A_ &server_send_ctx->io);
|
||||
if (remote != NULL) {
|
||||
ev_io_start(EV_A_ &remote->recv_ctx->io);
|
||||
} else {
|
||||
close_and_free_remote(EV_A_ remote);
|
||||
close_and_free_server(EV_A_ server);
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
void remote_timeout_cb(EV_P_ ev_timer *watcher, int revents) {
|
||||
struct remote_ctx *remote_ctx = (struct remote_ctx *) (((void*)watcher)
|
||||
- sizeof(ev_io));
|
||||
struct remote *remote = remote_ctx->remote;
|
||||
struct server *server = remote->server;
|
||||
|
||||
LOGD("remote timeout");
|
||||
|
||||
ev_timer_stop(EV_A_ watcher);
|
||||
|
||||
if (server == NULL) {
|
||||
close_and_free_remote(EV_A_ remote);
|
||||
return;
|
||||
}
|
||||
close_and_free_remote(EV_A_ remote);
|
||||
close_and_free_server(EV_A_ server);
|
||||
}
|
||||
|
||||
void remote_recv_cb (EV_P_ ev_io *w, int revents) {
|
||||
struct remote_ctx *remote_recv_ctx = (struct remote_ctx *)w;
|
||||
struct remote *remote = remote_recv_ctx->remote;
|
||||
struct server *server = remote->server;
|
||||
if (server == NULL) {
|
||||
close_and_free_remote(EV_A_ remote);
|
||||
return;
|
||||
}
|
||||
while (1) {
|
||||
ssize_t r = recv(remote->fd, server->buf, BUF_SIZE, 0);
|
||||
|
||||
if (r == 0) {
|
||||
// connection closed
|
||||
server->buf_len = 0;
|
||||
close_and_free_remote(EV_A_ remote);
|
||||
close_and_free_server(EV_A_ server);
|
||||
return;
|
||||
} else if(r < 0) {
|
||||
if (errno == EAGAIN) {
|
||||
// no data
|
||||
// continue to wait for recv
|
||||
break;
|
||||
} else {
|
||||
perror("remote recv");
|
||||
close_and_free_remote(EV_A_ remote);
|
||||
close_and_free_server(EV_A_ server);
|
||||
return;
|
||||
}
|
||||
}
|
||||
decrypt(server->buf, r, server->d_ctx);
|
||||
int w = send(server->fd, server->buf, r, 0);
|
||||
if(w < 0) {
|
||||
if (errno == EAGAIN) {
|
||||
// no data, wait for send
|
||||
server->buf_len = r;
|
||||
ev_io_stop(EV_A_ &remote_recv_ctx->io);
|
||||
ev_io_start(EV_A_ &server->send_ctx->io);
|
||||
break;
|
||||
} else {
|
||||
perror("send");
|
||||
close_and_free_remote(EV_A_ remote);
|
||||
close_and_free_server(EV_A_ server);
|
||||
return;
|
||||
}
|
||||
} else if(w < r) {
|
||||
char *pt = server->buf;
|
||||
char *et = pt + r;
|
||||
while (pt + w < et) {
|
||||
*pt = *(pt + w);
|
||||
pt++;
|
||||
}
|
||||
server->buf_len = r - w;
|
||||
assert(server->buf_len >= 0);
|
||||
ev_io_stop(EV_A_ &remote_recv_ctx->io);
|
||||
ev_io_start(EV_A_ &server->send_ctx->io);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void remote_send_cb (EV_P_ ev_io *w, int revents) {
|
||||
struct remote_ctx *remote_send_ctx = (struct remote_ctx *)w;
|
||||
struct remote *remote = remote_send_ctx->remote;
|
||||
struct server *server = remote->server;
|
||||
|
||||
if (!remote_send_ctx->connected) {
|
||||
|
||||
struct sockaddr_storage addr;
|
||||
socklen_t len = sizeof addr;
|
||||
int r = getpeername(remote->fd, (struct sockaddr*)&addr, &len);
|
||||
if (r == 0) {
|
||||
remote_send_ctx->connected = 1;
|
||||
ev_io_stop(EV_A_ &remote_send_ctx->io);
|
||||
ev_timer_stop(EV_A_ &remote_send_ctx->watcher);
|
||||
ev_io_start(EV_A_ &server->recv_ctx->io);
|
||||
ev_io_start(EV_A_ &remote->recv_ctx->io);
|
||||
return;
|
||||
} else {
|
||||
perror("getpeername");
|
||||
// not connected
|
||||
close_and_free_remote(EV_A_ remote);
|
||||
close_and_free_server(EV_A_ server);
|
||||
return;
|
||||
}
|
||||
} else {
|
||||
if (remote->buf_len == 0) {
|
||||
// close and free
|
||||
close_and_free_remote(EV_A_ remote);
|
||||
close_and_free_server(EV_A_ server);
|
||||
return;
|
||||
} else {
|
||||
// has data to send
|
||||
ssize_t r = send(remote->fd, remote->buf,
|
||||
remote->buf_len, 0);
|
||||
if (r < 0) {
|
||||
if (errno != EAGAIN) {
|
||||
perror("send");
|
||||
// close and free
|
||||
close_and_free_remote(EV_A_ remote);
|
||||
close_and_free_server(EV_A_ server);
|
||||
}
|
||||
return;
|
||||
}
|
||||
if (r < remote->buf_len) {
|
||||
// partly sent, move memory, wait for the next time to send
|
||||
char *pt = remote->buf;
|
||||
char *et = pt + remote->buf_len;
|
||||
while (pt + r < et) {
|
||||
*pt = *(pt + r);
|
||||
pt++;
|
||||
}
|
||||
remote->buf_len -= r;
|
||||
assert(remote->buf_len >= 0);
|
||||
return;
|
||||
} else {
|
||||
// all sent out, wait for reading
|
||||
ev_io_stop(EV_A_ &remote_send_ctx->io);
|
||||
if (server != NULL) {
|
||||
ev_io_start(EV_A_ &server->recv_ctx->io);
|
||||
} else {
|
||||
close_and_free_remote(EV_A_ remote);
|
||||
close_and_free_server(EV_A_ server);
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
|
||||
struct remote* new_remote(int fd) {
|
||||
struct remote *remote;
|
||||
remote = malloc(sizeof(struct remote));
|
||||
remote->recv_ctx = malloc(sizeof(struct remote_ctx));
|
||||
remote->send_ctx = malloc(sizeof(struct remote_ctx));
|
||||
remote->fd = fd;
|
||||
ev_io_init(&remote->recv_ctx->io, remote_recv_cb, fd, EV_READ);
|
||||
ev_io_init(&remote->send_ctx->io, remote_send_cb, fd, EV_WRITE);
|
||||
ev_timer_init(&remote->send_ctx->watcher, remote_timeout_cb, _timeout, 0);
|
||||
remote->recv_ctx->remote = remote;
|
||||
remote->recv_ctx->connected = 0;
|
||||
remote->send_ctx->remote = remote;
|
||||
remote->send_ctx->connected = 0;
|
||||
remote->buf_len = 0;
|
||||
return remote;
|
||||
}
|
||||
|
||||
void free_remote(struct remote *remote) {
|
||||
if (remote != NULL) {
|
||||
if (remote->server != NULL) {
|
||||
remote->server->remote = NULL;
|
||||
}
|
||||
free(remote->recv_ctx);
|
||||
free(remote->send_ctx);
|
||||
free(remote);
|
||||
}
|
||||
}
|
||||
|
||||
void close_and_free_remote(EV_P_ struct remote *remote) {
|
||||
if (remote != NULL) {
|
||||
ev_timer_stop(EV_A_ &remote->send_ctx->watcher);
|
||||
ev_io_stop(EV_A_ &remote->send_ctx->io);
|
||||
ev_io_stop(EV_A_ &remote->recv_ctx->io);
|
||||
close(remote->fd);
|
||||
free_remote(remote);
|
||||
}
|
||||
}
|
||||
|
||||
struct server* new_server(int fd) {
|
||||
struct server *server;
|
||||
server = malloc(sizeof(struct server));
|
||||
server->recv_ctx = malloc(sizeof(struct server_ctx));
|
||||
server->send_ctx = malloc(sizeof(struct server_ctx));
|
||||
server->fd = fd;
|
||||
ev_io_init(&server->recv_ctx->io, server_recv_cb, fd, EV_READ);
|
||||
ev_io_init(&server->send_ctx->io, server_send_cb, fd, EV_WRITE);
|
||||
server->recv_ctx->server = server;
|
||||
server->recv_ctx->connected = 0;
|
||||
server->send_ctx->server = server;
|
||||
server->send_ctx->connected = 0;
|
||||
server->stage = 0;
|
||||
if (_method == RC4) {
|
||||
server->e_ctx = malloc(sizeof(struct rc4_state));
|
||||
server->d_ctx = malloc(sizeof(struct rc4_state));
|
||||
enc_ctx_init(server->e_ctx, 1);
|
||||
enc_ctx_init(server->d_ctx, 0);
|
||||
} else {
|
||||
server->e_ctx = NULL;
|
||||
server->d_ctx = NULL;
|
||||
}
|
||||
server->buf_len = 0;
|
||||
return server;
|
||||
}
|
||||
|
||||
void free_server(struct server *server) {
|
||||
if (server != NULL) {
|
||||
if (server->remote != NULL) {
|
||||
server->remote->server = NULL;
|
||||
}
|
||||
if (_method == RC4) {
|
||||
free(server->e_ctx);
|
||||
free(server->d_ctx);
|
||||
}
|
||||
free(server->recv_ctx);
|
||||
free(server->send_ctx);
|
||||
free(server);
|
||||
}
|
||||
}
|
||||
|
||||
void close_and_free_server(EV_P_ struct server *server) {
|
||||
if (server != NULL) {
|
||||
ev_io_stop(EV_A_ &server->send_ctx->io);
|
||||
ev_io_stop(EV_A_ &server->recv_ctx->io);
|
||||
close(server->fd);
|
||||
free_server(server);
|
||||
}
|
||||
}
|
||||
|
||||
void accept_cb (EV_P_ ev_io *w, int revents) {
|
||||
struct listen_ctx *listener = (struct listen_ctx *)w;
|
||||
int serverfd;
|
||||
serverfd = accept(listener->fd, NULL, NULL);
|
||||
if (serverfd < 0) {
|
||||
perror("accept");
|
||||
return;
|
||||
}
|
||||
setnonblocking(serverfd);
|
||||
|
||||
struct addrinfo hints, *res;
|
||||
int sockfd;
|
||||
memset(&hints, 0, sizeof hints);
|
||||
hints.ai_family = AF_UNSPEC;
|
||||
hints.ai_socktype = SOCK_STREAM;
|
||||
int err = getaddrinfo(_server, _remote_port, &hints, &res);
|
||||
if (err) {
|
||||
perror("getaddrinfo");
|
||||
return;
|
||||
}
|
||||
|
||||
sockfd = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
|
||||
if (sockfd < 0) {
|
||||
perror("socket");
|
||||
close(sockfd);
|
||||
freeaddrinfo(res);
|
||||
return;
|
||||
}
|
||||
|
||||
struct timeval timeout;
|
||||
timeout.tv_sec = _timeout;
|
||||
timeout.tv_usec = 0;
|
||||
err = setsockopt(sockfd, SOL_SOCKET,
|
||||
SO_RCVTIMEO, (char *)&timeout, sizeof(timeout));
|
||||
if (err) perror("setsockopt");
|
||||
err = setsockopt(sockfd, SOL_SOCKET,
|
||||
SO_SNDTIMEO, (char *)&timeout, sizeof(timeout));
|
||||
if (err) perror("setsockopt");
|
||||
|
||||
setnonblocking(sockfd);
|
||||
struct server *server = new_server(serverfd);
|
||||
struct remote *remote = new_remote(sockfd);
|
||||
server->remote = remote;
|
||||
remote->server = server;
|
||||
connect(sockfd, res->ai_addr, res->ai_addrlen);
|
||||
freeaddrinfo(res);
|
||||
// listen to remote connected event
|
||||
ev_io_start(EV_A_ &remote->send_ctx->io);
|
||||
ev_timer_start(EV_A_ &remote->send_ctx->watcher);
|
||||
}
|
||||
|
||||
static void print_usage() {
|
||||
printf("usage: ss -s server_host -p server_port -l local_port\n");
|
||||
printf(" -k password [-m encrypt_method] [-f pid_file]\n");
|
||||
printf("\n");
|
||||
printf("info:\n");
|
||||
printf(" encrypt_method: table, rc4\n");
|
||||
printf(" pid_file: valid path to the pid file\n");
|
||||
}
|
||||
|
||||
int main (int argc, char **argv)
|
||||
{
|
||||
|
||||
char *server = NULL;
|
||||
char *remote_port = NULL;
|
||||
char *port = NULL;
|
||||
char *key = NULL;
|
||||
char* timeout = "10";
|
||||
char* method = NULL;
|
||||
int c;
|
||||
int f_flags = 0;
|
||||
|
||||
opterr = 0;
|
||||
|
||||
while ((c = getopt (argc, argv, "fs:p:l:k:t:m:")) != -1) {
|
||||
switch (c) {
|
||||
case 's':
|
||||
server = optarg;
|
||||
break;
|
||||
case 'p':
|
||||
remote_port = optarg;
|
||||
break;
|
||||
case 'l':
|
||||
port = optarg;
|
||||
break;
|
||||
case 'k':
|
||||
key = optarg;
|
||||
break;
|
||||
case 'f':
|
||||
f_flags = 1;
|
||||
break;
|
||||
case 't':
|
||||
timeout = optarg;
|
||||
break;
|
||||
case 'm':
|
||||
method = optarg;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (server == NULL || remote_port == NULL ||
|
||||
port == NULL || key == NULL) {
|
||||
print_usage();
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
if (f_flags) {
|
||||
|
||||
/* Our process ID and Session ID */
|
||||
pid_t pid, sid;
|
||||
|
||||
/* Fork off the parent process */
|
||||
pid = fork();
|
||||
if (pid < 0) {
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
/* If we got a good PID, then
|
||||
we can exit the parent process. */
|
||||
if (pid > 0) {
|
||||
FILE *file = fopen("/data/data/com.github.shadowsocks/shadowsocks.pid", "w");
|
||||
fprintf(file, "%d", pid);
|
||||
fclose(file);
|
||||
exit(EXIT_SUCCESS);
|
||||
}
|
||||
|
||||
/* Change the file mode mask */
|
||||
umask(0);
|
||||
|
||||
/* Open any logs here */
|
||||
|
||||
/* Create a new SID for the child process */
|
||||
sid = setsid();
|
||||
if (sid < 0) {
|
||||
/* Log the failure */
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
|
||||
/* Change the current working directory */
|
||||
if ((chdir("/")) < 0) {
|
||||
/* Log the failure */
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
/* Close out the standard file descriptors */
|
||||
close(STDIN_FILENO);
|
||||
close(STDOUT_FILENO);
|
||||
close(STDERR_FILENO);
|
||||
} else {
|
||||
pid_t pid = getpid();
|
||||
FILE *file = fopen("/data/data/com.github.shadowsocks/shadowsocks.pid", "w");
|
||||
fprintf(file, "%d", pid);
|
||||
fclose(file);
|
||||
}
|
||||
|
||||
signal(SIGPIPE, SIG_IGN);
|
||||
|
||||
// init global variables
|
||||
_server = strdup(server);
|
||||
_remote_port = strdup(remote_port);
|
||||
_timeout = atoi(timeout);
|
||||
_method = TABLE;
|
||||
if (method != NULL) {
|
||||
if (strcmp(method, "rc4") == 0) {
|
||||
_method = RC4;
|
||||
}
|
||||
}
|
||||
|
||||
LOGD("calculating ciphers %d", _method);
|
||||
if (_method == RC4) {
|
||||
enc_key_init(key);
|
||||
} else {
|
||||
get_table(key);
|
||||
}
|
||||
|
||||
int listenfd;
|
||||
listenfd = create_and_bind(port);
|
||||
if (listenfd < 0) {
|
||||
LOGE("bind() error..");
|
||||
return 1;
|
||||
}
|
||||
if (listen(listenfd, SOMAXCONN) < 0) {
|
||||
LOGE("listen() error.");
|
||||
return 1;
|
||||
}
|
||||
LOGD("server listening at port %s\n", port);
|
||||
|
||||
setnonblocking(listenfd);
|
||||
struct listen_ctx listen_ctx;
|
||||
listen_ctx.fd = listenfd;
|
||||
struct ev_loop *loop = ev_default_loop(0);
|
||||
if (!loop) {
|
||||
LOGE("no epoll found here, maybe it hides under your chair");
|
||||
return 1;
|
||||
}
|
||||
ev_io_init (&listen_ctx.io, accept_cb, listenfd, EV_READ);
|
||||
ev_io_start (loop, &listen_ctx.io);
|
||||
ev_run (loop, 0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
@@ -1,61 +0,0 @@
|
||||
#ifndef _LOCAL_H
|
||||
#define _LOCAL_H
|
||||
|
||||
#include <ev.h>
|
||||
|
||||
#include "encrypt.h"
|
||||
|
||||
struct listen_ctx {
|
||||
ev_io io;
|
||||
int fd;
|
||||
struct sockaddr sock;
|
||||
};
|
||||
|
||||
struct server_ctx {
|
||||
ev_io io;
|
||||
int connected;
|
||||
struct server *server;
|
||||
};
|
||||
|
||||
struct server {
|
||||
int fd;
|
||||
char buf[BUF_SIZE]; // server send from, remote recv into
|
||||
char stage;
|
||||
int buf_len;
|
||||
struct rc4_state *e_ctx;
|
||||
struct rc4_state *d_ctx;
|
||||
struct server_ctx *recv_ctx;
|
||||
struct server_ctx *send_ctx;
|
||||
struct remote *remote;
|
||||
};
|
||||
|
||||
struct remote_ctx {
|
||||
ev_io io;
|
||||
ev_timer watcher;
|
||||
int connected;
|
||||
struct remote *remote;
|
||||
};
|
||||
|
||||
struct remote {
|
||||
int fd;
|
||||
char buf[BUF_SIZE]; // remote send from, server recv into
|
||||
int buf_len;
|
||||
struct remote_ctx *recv_ctx;
|
||||
struct remote_ctx *send_ctx;
|
||||
struct server *server;
|
||||
};
|
||||
|
||||
|
||||
static void accept_cb (EV_P_ ev_io *w, int revents);
|
||||
static void server_recv_cb (EV_P_ ev_io *w, int revents);
|
||||
static void server_send_cb (EV_P_ ev_io *w, int revents);
|
||||
static void remote_recv_cb (EV_P_ ev_io *w, int revents);
|
||||
static void remote_send_cb (EV_P_ ev_io *w, int revents);
|
||||
struct remote* new_remote(int fd);
|
||||
void free_remote(struct remote *remote);
|
||||
void close_and_free_remote(EV_P_ struct remote *remote);
|
||||
struct server* new_server(int fd);
|
||||
void free_server(struct server *server);
|
||||
void close_and_free_server(EV_P_ struct server *server);
|
||||
|
||||
#endif // _LOCAL_H
|
||||
@@ -1,392 +0,0 @@
|
||||
/*
|
||||
Copyright (C) 1999 Aladdin Enterprises. All rights reserved.
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
3. This notice may not be removed or altered from any source distribution.
|
||||
|
||||
L. Peter Deutsch
|
||||
ghost@aladdin.com
|
||||
|
||||
*/
|
||||
/*$Id: md5.c,v 1.1.1.1 2001/10/18 22:50:24 jlovell Exp $ */
|
||||
/*
|
||||
Independent implementation of MD5 (RFC 1321).
|
||||
|
||||
This code implements the MD5 Algorithm defined in RFC 1321.
|
||||
It is derived directly from the text of the RFC and not from the
|
||||
reference implementation.
|
||||
|
||||
The original and principal author of md5.c is L. Peter Deutsch
|
||||
<ghost@aladdin.com>. Other authors are noted in the change history
|
||||
that follows (in reverse chronological order):
|
||||
|
||||
1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
|
||||
1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5).
|
||||
1999-05-03 lpd Original version.
|
||||
*/
|
||||
|
||||
#include "md5.h"
|
||||
#include "string.h"
|
||||
|
||||
#ifdef TEST
|
||||
/*
|
||||
* Compile with -DTEST to create a self-contained executable test program.
|
||||
* The test program should print out the same values as given in section
|
||||
* A.5 of RFC 1321, reproduced below.
|
||||
*/
|
||||
main()
|
||||
{
|
||||
static const char *const test[7] = {
|
||||
"", /*d41d8cd98f00b204e9800998ecf8427e*/
|
||||
"a", /*0cc175b9c0f1b6a831c399e269772661*/
|
||||
"abc", /*900150983cd24fb0d6963f7d28e17f72*/
|
||||
"message digest", /*f96b697d7cb7938d525a2f31aaf161d0*/
|
||||
"abcdefghijklmnopqrstuvwxyz", /*c3fcd3d76192e4007dfb496cca67e13b*/
|
||||
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
|
||||
/*d174ab98d277d9f5a5611c2c9f419d9f*/
|
||||
"12345678901234567890123456789012345678901234567890123456789012345678901234567890" /*57edf4a22be3c955ac49da2e2107b67a*/
|
||||
};
|
||||
int i;
|
||||
|
||||
for (i = 0; i < 7; ++i) {
|
||||
md5_state_t state;
|
||||
md5_byte_t digest[16];
|
||||
int di;
|
||||
|
||||
md5_init(&state);
|
||||
md5_append(&state, (const md5_byte_t *)test[i], strlen(test[i]));
|
||||
md5_finish(&state, digest);
|
||||
printf("MD5 (\"%s\") = ", test[i]);
|
||||
for (di = 0; di < 16; ++di)
|
||||
printf("%02x", digest[di]);
|
||||
printf("\n");
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
#endif /* TEST */
|
||||
|
||||
|
||||
/*
|
||||
* For reference, here is the program that computed the T values.
|
||||
*/
|
||||
#if 0
|
||||
#include <math.h>
|
||||
main()
|
||||
{
|
||||
int i;
|
||||
for (i = 1; i <= 64; ++i) {
|
||||
unsigned long v = (unsigned long)(4294967296.0 * fabs(sin((double)i)));
|
||||
printf("#define T%d 0x%08lx\n", i, v);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
/*
|
||||
* End of T computation program.
|
||||
*/
|
||||
#define T1 0xd76aa478
|
||||
#define T2 0xe8c7b756
|
||||
#define T3 0x242070db
|
||||
#define T4 0xc1bdceee
|
||||
#define T5 0xf57c0faf
|
||||
#define T6 0x4787c62a
|
||||
#define T7 0xa8304613
|
||||
#define T8 0xfd469501
|
||||
#define T9 0x698098d8
|
||||
#define T10 0x8b44f7af
|
||||
#define T11 0xffff5bb1
|
||||
#define T12 0x895cd7be
|
||||
#define T13 0x6b901122
|
||||
#define T14 0xfd987193
|
||||
#define T15 0xa679438e
|
||||
#define T16 0x49b40821
|
||||
#define T17 0xf61e2562
|
||||
#define T18 0xc040b340
|
||||
#define T19 0x265e5a51
|
||||
#define T20 0xe9b6c7aa
|
||||
#define T21 0xd62f105d
|
||||
#define T22 0x02441453
|
||||
#define T23 0xd8a1e681
|
||||
#define T24 0xe7d3fbc8
|
||||
#define T25 0x21e1cde6
|
||||
#define T26 0xc33707d6
|
||||
#define T27 0xf4d50d87
|
||||
#define T28 0x455a14ed
|
||||
#define T29 0xa9e3e905
|
||||
#define T30 0xfcefa3f8
|
||||
#define T31 0x676f02d9
|
||||
#define T32 0x8d2a4c8a
|
||||
#define T33 0xfffa3942
|
||||
#define T34 0x8771f681
|
||||
#define T35 0x6d9d6122
|
||||
#define T36 0xfde5380c
|
||||
#define T37 0xa4beea44
|
||||
#define T38 0x4bdecfa9
|
||||
#define T39 0xf6bb4b60
|
||||
#define T40 0xbebfbc70
|
||||
#define T41 0x289b7ec6
|
||||
#define T42 0xeaa127fa
|
||||
#define T43 0xd4ef3085
|
||||
#define T44 0x04881d05
|
||||
#define T45 0xd9d4d039
|
||||
#define T46 0xe6db99e5
|
||||
#define T47 0x1fa27cf8
|
||||
#define T48 0xc4ac5665
|
||||
#define T49 0xf4292244
|
||||
#define T50 0x432aff97
|
||||
#define T51 0xab9423a7
|
||||
#define T52 0xfc93a039
|
||||
#define T53 0x655b59c3
|
||||
#define T54 0x8f0ccc92
|
||||
#define T55 0xffeff47d
|
||||
#define T56 0x85845dd1
|
||||
#define T57 0x6fa87e4f
|
||||
#define T58 0xfe2ce6e0
|
||||
#define T59 0xa3014314
|
||||
#define T60 0x4e0811a1
|
||||
#define T61 0xf7537e82
|
||||
#define T62 0xbd3af235
|
||||
#define T63 0x2ad7d2bb
|
||||
#define T64 0xeb86d391
|
||||
|
||||
static void
|
||||
md5_process(md5_state_t *pms, const md5_byte_t *data /*[64]*/)
|
||||
{
|
||||
md5_word_t
|
||||
a = pms->abcd[0], b = pms->abcd[1],
|
||||
c = pms->abcd[2], d = pms->abcd[3];
|
||||
md5_word_t t;
|
||||
|
||||
#ifndef ARCH_IS_BIG_ENDIAN
|
||||
# define ARCH_IS_BIG_ENDIAN 1 /* slower, default implementation */
|
||||
#endif
|
||||
#if ARCH_IS_BIG_ENDIAN
|
||||
|
||||
/*
|
||||
* On big-endian machines, we must arrange the bytes in the right
|
||||
* order. (This also works on machines of unknown byte order.)
|
||||
*/
|
||||
md5_word_t X[16];
|
||||
const md5_byte_t *xp = data;
|
||||
int i;
|
||||
|
||||
for (i = 0; i < 16; ++i, xp += 4)
|
||||
X[i] = xp[0] + (xp[1] << 8) + (xp[2] << 16) + (xp[3] << 24);
|
||||
|
||||
#else /* !ARCH_IS_BIG_ENDIAN */
|
||||
|
||||
/*
|
||||
* On little-endian machines, we can process properly aligned data
|
||||
* without copying it.
|
||||
*/
|
||||
md5_word_t xbuf[16];
|
||||
const md5_word_t *X;
|
||||
|
||||
if (!((data - (const md5_byte_t *)0) & 3)) {
|
||||
/* data are properly aligned */
|
||||
X = (const md5_word_t *)data;
|
||||
} else {
|
||||
/* not aligned */
|
||||
memcpy(xbuf, data, 64);
|
||||
X = xbuf;
|
||||
}
|
||||
#endif
|
||||
|
||||
#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32 - (n))))
|
||||
|
||||
/* Round 1. */
|
||||
/* Let [abcd k s i] denote the operation
|
||||
a = b + ((a + F(b,c,d) + X[k] + T[i]) <<< s). */
|
||||
#define F(x, y, z) (((x) & (y)) | (~(x) & (z)))
|
||||
#define SET(a, b, c, d, k, s, Ti)\
|
||||
t = a + F(b,c,d) + X[k] + Ti;\
|
||||
a = ROTATE_LEFT(t, s) + b
|
||||
/* Do the following 16 operations. */
|
||||
SET(a, b, c, d, 0, 7, T1);
|
||||
SET(d, a, b, c, 1, 12, T2);
|
||||
SET(c, d, a, b, 2, 17, T3);
|
||||
SET(b, c, d, a, 3, 22, T4);
|
||||
SET(a, b, c, d, 4, 7, T5);
|
||||
SET(d, a, b, c, 5, 12, T6);
|
||||
SET(c, d, a, b, 6, 17, T7);
|
||||
SET(b, c, d, a, 7, 22, T8);
|
||||
SET(a, b, c, d, 8, 7, T9);
|
||||
SET(d, a, b, c, 9, 12, T10);
|
||||
SET(c, d, a, b, 10, 17, T11);
|
||||
SET(b, c, d, a, 11, 22, T12);
|
||||
SET(a, b, c, d, 12, 7, T13);
|
||||
SET(d, a, b, c, 13, 12, T14);
|
||||
SET(c, d, a, b, 14, 17, T15);
|
||||
SET(b, c, d, a, 15, 22, T16);
|
||||
#undef SET
|
||||
|
||||
/* Round 2. */
|
||||
/* Let [abcd k s i] denote the operation
|
||||
a = b + ((a + G(b,c,d) + X[k] + T[i]) <<< s). */
|
||||
#define G(x, y, z) (((x) & (z)) | ((y) & ~(z)))
|
||||
#define SET(a, b, c, d, k, s, Ti)\
|
||||
t = a + G(b,c,d) + X[k] + Ti;\
|
||||
a = ROTATE_LEFT(t, s) + b
|
||||
/* Do the following 16 operations. */
|
||||
SET(a, b, c, d, 1, 5, T17);
|
||||
SET(d, a, b, c, 6, 9, T18);
|
||||
SET(c, d, a, b, 11, 14, T19);
|
||||
SET(b, c, d, a, 0, 20, T20);
|
||||
SET(a, b, c, d, 5, 5, T21);
|
||||
SET(d, a, b, c, 10, 9, T22);
|
||||
SET(c, d, a, b, 15, 14, T23);
|
||||
SET(b, c, d, a, 4, 20, T24);
|
||||
SET(a, b, c, d, 9, 5, T25);
|
||||
SET(d, a, b, c, 14, 9, T26);
|
||||
SET(c, d, a, b, 3, 14, T27);
|
||||
SET(b, c, d, a, 8, 20, T28);
|
||||
SET(a, b, c, d, 13, 5, T29);
|
||||
SET(d, a, b, c, 2, 9, T30);
|
||||
SET(c, d, a, b, 7, 14, T31);
|
||||
SET(b, c, d, a, 12, 20, T32);
|
||||
#undef SET
|
||||
|
||||
/* Round 3. */
|
||||
/* Let [abcd k s t] denote the operation
|
||||
a = b + ((a + H(b,c,d) + X[k] + T[i]) <<< s). */
|
||||
#define H(x, y, z) ((x) ^ (y) ^ (z))
|
||||
#define SET(a, b, c, d, k, s, Ti)\
|
||||
t = a + H(b,c,d) + X[k] + Ti;\
|
||||
a = ROTATE_LEFT(t, s) + b
|
||||
/* Do the following 16 operations. */
|
||||
SET(a, b, c, d, 5, 4, T33);
|
||||
SET(d, a, b, c, 8, 11, T34);
|
||||
SET(c, d, a, b, 11, 16, T35);
|
||||
SET(b, c, d, a, 14, 23, T36);
|
||||
SET(a, b, c, d, 1, 4, T37);
|
||||
SET(d, a, b, c, 4, 11, T38);
|
||||
SET(c, d, a, b, 7, 16, T39);
|
||||
SET(b, c, d, a, 10, 23, T40);
|
||||
SET(a, b, c, d, 13, 4, T41);
|
||||
SET(d, a, b, c, 0, 11, T42);
|
||||
SET(c, d, a, b, 3, 16, T43);
|
||||
SET(b, c, d, a, 6, 23, T44);
|
||||
SET(a, b, c, d, 9, 4, T45);
|
||||
SET(d, a, b, c, 12, 11, T46);
|
||||
SET(c, d, a, b, 15, 16, T47);
|
||||
SET(b, c, d, a, 2, 23, T48);
|
||||
#undef SET
|
||||
|
||||
/* Round 4. */
|
||||
/* Let [abcd k s t] denote the operation
|
||||
a = b + ((a + I(b,c,d) + X[k] + T[i]) <<< s). */
|
||||
#define I(x, y, z) ((y) ^ ((x) | ~(z)))
|
||||
#define SET(a, b, c, d, k, s, Ti)\
|
||||
t = a + I(b,c,d) + X[k] + Ti;\
|
||||
a = ROTATE_LEFT(t, s) + b
|
||||
/* Do the following 16 operations. */
|
||||
SET(a, b, c, d, 0, 6, T49);
|
||||
SET(d, a, b, c, 7, 10, T50);
|
||||
SET(c, d, a, b, 14, 15, T51);
|
||||
SET(b, c, d, a, 5, 21, T52);
|
||||
SET(a, b, c, d, 12, 6, T53);
|
||||
SET(d, a, b, c, 3, 10, T54);
|
||||
SET(c, d, a, b, 10, 15, T55);
|
||||
SET(b, c, d, a, 1, 21, T56);
|
||||
SET(a, b, c, d, 8, 6, T57);
|
||||
SET(d, a, b, c, 15, 10, T58);
|
||||
SET(c, d, a, b, 6, 15, T59);
|
||||
SET(b, c, d, a, 13, 21, T60);
|
||||
SET(a, b, c, d, 4, 6, T61);
|
||||
SET(d, a, b, c, 11, 10, T62);
|
||||
SET(c, d, a, b, 2, 15, T63);
|
||||
SET(b, c, d, a, 9, 21, T64);
|
||||
#undef SET
|
||||
|
||||
/* Then perform the following additions. (That is increment each
|
||||
of the four registers by the value it had before this block
|
||||
was started.) */
|
||||
pms->abcd[0] += a;
|
||||
pms->abcd[1] += b;
|
||||
pms->abcd[2] += c;
|
||||
pms->abcd[3] += d;
|
||||
}
|
||||
|
||||
void
|
||||
md5_init(md5_state_t *pms)
|
||||
{
|
||||
pms->count[0] = pms->count[1] = 0;
|
||||
pms->abcd[0] = 0x67452301;
|
||||
pms->abcd[1] = 0xefcdab89;
|
||||
pms->abcd[2] = 0x98badcfe;
|
||||
pms->abcd[3] = 0x10325476;
|
||||
}
|
||||
|
||||
void
|
||||
md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes)
|
||||
{
|
||||
const md5_byte_t *p = data;
|
||||
int left = nbytes;
|
||||
int offset = (pms->count[0] >> 3) & 63;
|
||||
md5_word_t nbits = (md5_word_t)(nbytes << 3);
|
||||
|
||||
if (nbytes <= 0)
|
||||
return;
|
||||
|
||||
/* Update the message length. */
|
||||
pms->count[1] += nbytes >> 29;
|
||||
pms->count[0] += nbits;
|
||||
if (pms->count[0] < nbits)
|
||||
pms->count[1]++;
|
||||
|
||||
/* Process an initial partial block. */
|
||||
if (offset) {
|
||||
int copy = (offset + nbytes > 64 ? 64 - offset : nbytes);
|
||||
|
||||
memcpy(pms->buf + offset, p, copy);
|
||||
if (offset + copy < 64)
|
||||
return;
|
||||
p += copy;
|
||||
left -= copy;
|
||||
md5_process(pms, pms->buf);
|
||||
}
|
||||
|
||||
/* Process full blocks. */
|
||||
for (; left >= 64; p += 64, left -= 64)
|
||||
md5_process(pms, p);
|
||||
|
||||
/* Process a final partial block. */
|
||||
if (left)
|
||||
memcpy(pms->buf, p, left);
|
||||
}
|
||||
|
||||
void
|
||||
md5_finish(md5_state_t *pms, md5_byte_t digest[16])
|
||||
{
|
||||
static const md5_byte_t pad[64] = {
|
||||
0x80, 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
|
||||
};
|
||||
md5_byte_t data[8];
|
||||
int i;
|
||||
|
||||
/* Save the length before padding. */
|
||||
for (i = 0; i < 8; ++i)
|
||||
data[i] = (md5_byte_t)(pms->count[i >> 2] >> ((i & 3) << 3));
|
||||
/* Pad to 56 bytes mod 64. */
|
||||
md5_append(pms, pad, ((55 - (pms->count[0] >> 3)) & 63) + 1);
|
||||
/* Append the length. */
|
||||
md5_append(pms, data, 8);
|
||||
for (i = 0; i < 16; ++i)
|
||||
digest[i] = (md5_byte_t)(pms->abcd[i >> 2] >> ((i & 3) << 3));
|
||||
}
|
||||
@@ -1,94 +0,0 @@
|
||||
/*
|
||||
Copyright (C) 1999 Aladdin Enterprises. All rights reserved.
|
||||
|
||||
This software is provided 'as-is', without any express or implied
|
||||
warranty. In no event will the authors be held liable for any damages
|
||||
arising from the use of this software.
|
||||
|
||||
Permission is granted to anyone to use this software for any purpose,
|
||||
including commercial applications, and to alter it and redistribute it
|
||||
freely, subject to the following restrictions:
|
||||
|
||||
1. The origin of this software must not be misrepresented; you must not
|
||||
claim that you wrote the original software. If you use this software
|
||||
in a product, an acknowledgment in the product documentation would be
|
||||
appreciated but is not required.
|
||||
2. Altered source versions must be plainly marked as such, and must not be
|
||||
misrepresented as being the original software.
|
||||
3. This notice may not be removed or altered from any source distribution.
|
||||
|
||||
L. Peter Deutsch
|
||||
ghost@aladdin.com
|
||||
|
||||
*/
|
||||
/*$Id: md5.h,v 1.1.1.1 2001/10/18 22:50:24 jlovell Exp $ */
|
||||
/*
|
||||
Independent implementation of MD5 (RFC 1321).
|
||||
|
||||
This code implements the MD5 Algorithm defined in RFC 1321.
|
||||
It is derived directly from the text of the RFC and not from the
|
||||
reference implementation.
|
||||
|
||||
The original and principal author of md5.h is L. Peter Deutsch
|
||||
<ghost@aladdin.com>. Other authors are noted in the change history
|
||||
that follows (in reverse chronological order):
|
||||
|
||||
1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
|
||||
1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
|
||||
added conditionalization for C++ compilation from Martin
|
||||
Purschke <purschke@bnl.gov>.
|
||||
1999-05-03 lpd Original version.
|
||||
*/
|
||||
|
||||
#ifndef md5_INCLUDED
|
||||
# define md5_INCLUDED
|
||||
|
||||
/*
|
||||
* This code has some adaptations for the Ghostscript environment, but it
|
||||
* will compile and run correctly in any environment with 8-bit chars and
|
||||
* 32-bit ints. Specifically, it assumes that if the following are
|
||||
* defined, they have the same meaning as in Ghostscript: P1, P2, P3,
|
||||
* ARCH_IS_BIG_ENDIAN.
|
||||
*/
|
||||
|
||||
typedef unsigned char md5_byte_t; /* 8-bit byte */
|
||||
typedef unsigned int md5_word_t; /* 32-bit word */
|
||||
|
||||
/* Define the state of the MD5 Algorithm. */
|
||||
typedef struct md5_state_s {
|
||||
md5_word_t count[2]; /* message length in bits, lsw first */
|
||||
md5_word_t abcd[4]; /* digest buffer */
|
||||
md5_byte_t buf[64]; /* accumulate block */
|
||||
} md5_state_t;
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C"
|
||||
{
|
||||
#endif
|
||||
|
||||
/* Initialize the algorithm. */
|
||||
#ifdef P1
|
||||
void md5_init(P1(md5_state_t *pms));
|
||||
#else
|
||||
void md5_init(md5_state_t *pms);
|
||||
#endif
|
||||
|
||||
/* Append a string to the message. */
|
||||
#ifdef P3
|
||||
void md5_append(P3(md5_state_t *pms, const md5_byte_t *data, int nbytes));
|
||||
#else
|
||||
void md5_append(md5_state_t *pms, const md5_byte_t *data, int nbytes);
|
||||
#endif
|
||||
|
||||
/* Finish the message and return the digest. */
|
||||
#ifdef P2
|
||||
void md5_finish(P2(md5_state_t *pms, md5_byte_t digest[16]));
|
||||
#else
|
||||
void md5_finish(md5_state_t *pms, md5_byte_t digest[16]);
|
||||
#endif
|
||||
|
||||
#ifdef __cplusplus
|
||||
} /* end extern "C" */
|
||||
#endif
|
||||
|
||||
#endif /* md5_INCLUDED */
|
||||
@@ -1,103 +0,0 @@
|
||||
|
||||
/*
|
||||
* rc4.c
|
||||
*
|
||||
* Copyright (c) 1996-2000 Whistle Communications, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Subject to the following obligations and disclaimer of warranty, use and
|
||||
* redistribution of this software, in source or object code forms, with or
|
||||
* without modifications are expressly permitted by Whistle Communications;
|
||||
* provided, however, that:
|
||||
* 1. Any and all reproductions of the source or object code must include the
|
||||
* copyright notice above and the following disclaimer of warranties; and
|
||||
* 2. No rights are granted, in any manner or form, to use Whistle
|
||||
* Communications, Inc. trademarks, including the mark "WHISTLE
|
||||
* COMMUNICATIONS" on advertising, endorsements, or otherwise except as
|
||||
* such appears in the above copyright notice or in the software.
|
||||
*
|
||||
* THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
|
||||
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
|
||||
* REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
|
||||
* INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
|
||||
* WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
|
||||
* REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
|
||||
* SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
|
||||
* IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
|
||||
* RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
|
||||
* WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
|
||||
* PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
|
||||
* OF SUCH DAMAGE.
|
||||
*
|
||||
* $FreeBSD: src/sys/crypto/rc4/rc4.c,v 1.2.2.1 2000/04/18 04:48:31 archie Exp $
|
||||
*/
|
||||
#include <stdint.h>
|
||||
#include "rc4.h"
|
||||
|
||||
static inline void
|
||||
swap_bytes(u_char *a, u_char *b)
|
||||
{
|
||||
u_char temp;
|
||||
|
||||
temp = *a;
|
||||
*a = *b;
|
||||
*b = temp;
|
||||
}
|
||||
|
||||
/*
|
||||
* Initialize an RC4 state buffer using the supplied key,
|
||||
* which can have arbitrary length.
|
||||
*/
|
||||
void
|
||||
rc4_init(struct rc4_state *const state, const u_char *key, int keylen)
|
||||
{
|
||||
u_char j;
|
||||
int i;
|
||||
|
||||
/* Initialize state with identity permutation */
|
||||
for (i = 0; i < 256; i++)
|
||||
state->perm[i] = (u_char)i;
|
||||
state->index1 = 0;
|
||||
state->index2 = 0;
|
||||
|
||||
/* Randomize the permutation using key data */
|
||||
for (j = i = 0; i < 256; i++) {
|
||||
j += state->perm[i] + key[i % keylen];
|
||||
swap_bytes(&state->perm[i], &state->perm[j]);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* Encrypt some data using the supplied RC4 state buffer.
|
||||
* The input and output buffers may be the same buffer.
|
||||
* Since RC4 is a stream cypher, this function is used
|
||||
* for both encryption and decryption.
|
||||
*/
|
||||
void
|
||||
rc4_crypt(struct rc4_state *const state,
|
||||
const u_char *inbuf, u_char *outbuf, int buflen)
|
||||
{
|
||||
int i;
|
||||
u_char j;
|
||||
|
||||
for (i = 0; i < buflen; i++) {
|
||||
|
||||
/* Update modification indicies */
|
||||
state->index1++;
|
||||
state->index2 += state->perm[state->index1];
|
||||
|
||||
/* Modify permutation */
|
||||
swap_bytes(&state->perm[state->index1],
|
||||
&state->perm[state->index2]);
|
||||
|
||||
/* Encrypt/decrypt next byte */
|
||||
j = state->perm[state->index1] + state->perm[state->index2];
|
||||
outbuf[i] = inbuf[i] ^ state->perm[j];
|
||||
}
|
||||
}
|
||||
|
||||
@@ -1,55 +0,0 @@
|
||||
/*
|
||||
* rc4.h
|
||||
*
|
||||
* Copyright (c) 1996-2000 Whistle Communications, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Subject to the following obligations and disclaimer of warranty, use and
|
||||
* redistribution of this software, in source or object code forms, with or
|
||||
* without modifications are expressly permitted by Whistle Communications;
|
||||
* provided, however, that:
|
||||
* 1. Any and all reproductions of the source or object code must include the
|
||||
* copyright notice above and the following disclaimer of warranties; and
|
||||
* 2. No rights are granted, in any manner or form, to use Whistle
|
||||
* Communications, Inc. trademarks, including the mark "WHISTLE
|
||||
* COMMUNICATIONS" on advertising, endorsements, or otherwise except as
|
||||
* such appears in the above copyright notice or in the software.
|
||||
*
|
||||
* THIS SOFTWARE IS BEING PROVIDED BY WHISTLE COMMUNICATIONS "AS IS", AND
|
||||
* TO THE MAXIMUM EXTENT PERMITTED BY LAW, WHISTLE COMMUNICATIONS MAKES NO
|
||||
* REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED, REGARDING THIS SOFTWARE,
|
||||
* INCLUDING WITHOUT LIMITATION, ANY AND ALL IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
|
||||
* WHISTLE COMMUNICATIONS DOES NOT WARRANT, GUARANTEE, OR MAKE ANY
|
||||
* REPRESENTATIONS REGARDING THE USE OF, OR THE RESULTS OF THE USE OF THIS
|
||||
* SOFTWARE IN TERMS OF ITS CORRECTNESS, ACCURACY, RELIABILITY OR OTHERWISE.
|
||||
* IN NO EVENT SHALL WHISTLE COMMUNICATIONS BE LIABLE FOR ANY DAMAGES
|
||||
* RESULTING FROM OR ARISING OUT OF ANY USE OF THIS SOFTWARE, INCLUDING
|
||||
* WITHOUT LIMITATION, ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
|
||||
* PUNITIVE, OR CONSEQUENTIAL DAMAGES, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES, LOSS OF USE, DATA OR PROFITS, HOWEVER CAUSED AND UNDER ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF WHISTLE COMMUNICATIONS IS ADVISED OF THE POSSIBILITY
|
||||
* OF SUCH DAMAGE.
|
||||
*
|
||||
* $FreeBSD: src/sys/crypto/rc4/rc4.h,v 1.2.2.1 2000/04/18 04:48:32 archie Exp $
|
||||
*/
|
||||
|
||||
#ifndef RC4_H_
|
||||
#define RC4_H_
|
||||
|
||||
typedef uint8_t u_char;
|
||||
|
||||
struct rc4_state {
|
||||
u_char perm[256];
|
||||
u_char index1;
|
||||
u_char index2;
|
||||
};
|
||||
|
||||
void rc4_init(struct rc4_state *state, const u_char *key, int keylen);
|
||||
void rc4_crypt(struct rc4_state *state,
|
||||
const u_char *inbuf, u_char *outbuf, int buflen);
|
||||
|
||||
#endif
|
||||
|
||||
@@ -1,42 +0,0 @@
|
||||
#pragma once
|
||||
|
||||
#define VERSION 0x05
|
||||
#define CONNECT 0x01
|
||||
#define IPV4 0x01
|
||||
#define DOMAIN 0x03
|
||||
#define IPV6 0x04
|
||||
#define CMD_NOT_SUPPORTED 0x07
|
||||
|
||||
#pragma pack(1)
|
||||
|
||||
struct method_select_request
|
||||
{
|
||||
char ver;
|
||||
char nmethods;
|
||||
char methods[255];
|
||||
};
|
||||
|
||||
struct method_select_response
|
||||
{
|
||||
char ver;
|
||||
char method;
|
||||
};
|
||||
|
||||
struct socks5_request
|
||||
{
|
||||
char ver;
|
||||
char cmd;
|
||||
char rsv;
|
||||
char atyp;
|
||||
};
|
||||
|
||||
struct socks5_response
|
||||
{
|
||||
char ver;
|
||||
char rep;
|
||||
char rsv;
|
||||
char atyp;
|
||||
};
|
||||
|
||||
#pragma pack()
|
||||
|
||||
Reference in New Issue
Block a user