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https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2026-03-02 01:40:31 -05:00
module-raop: move base64 to separate file
This commit is contained in:
Wim Taymans
parent
03662b3dfe
commit
be3c63d55e
2 changed files with 69 additions and 49 deletions
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@ -45,6 +45,7 @@
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#include "network-utils.h"
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#include "module-raop/rtsp-client.h"
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#include "module-raop/base64.h"
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#include "module-rtp/rtp.h"
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#include "module-rtp/stream.h"
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@ -703,49 +704,6 @@ on_control_source_io(void *data, int fd, uint32_t mask)
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}
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}
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static void base64_encode(const uint8_t *data, size_t len, char *enc, char pad)
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{
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static const char tab[] =
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"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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size_t i;
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for (i = 0; i < len; i += 3) {
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uint32_t v;
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v = data[i+0] << 16;
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v |= (i+1 < len ? data[i+1] : 0) << 8;
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v |= (i+2 < len ? data[i+2] : 0);
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*enc++ = tab[(v >> (3*6)) & 0x3f];
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*enc++ = tab[(v >> (2*6)) & 0x3f];
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*enc++ = i+1 < len ? tab[(v >> (1*6)) & 0x3f] : pad;
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*enc++ = i+2 < len ? tab[(v >> (0*6)) & 0x3f] : pad;
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}
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*enc = '\0';
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}
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static size_t base64_decode(const char *data, size_t len, uint8_t *dec)
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{
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uint8_t tab[] = {
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62, -1, -1, -1, 63, 52, 53, 54, 55, 56,
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57, 58, 59, 60, 61, -1, -1, -1, -1, -1,
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-1, -1, 0, 1, 2, 3, 4, 5, 6, 7,
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8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
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18, 19, 20, 21, 22, 23, 24, 25, -1, -1,
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-1, -1, -1, -1, 26, 27, 28, 29, 30, 31,
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32, 33, 34, 35, 36, 37, 38, 39, 40, 41,
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42, 43, 44, 45, 46, 47, 48, 49, 50, 51 };
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size_t i, j;
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for (i = 0, j = 0; i < len; i += 4) {
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uint32_t v;
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v = tab[data[i+0]-43] << (3*6);
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v |= tab[data[i+1]-43] << (2*6);
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v |= (data[i+2] == '=' ? 0 : tab[data[i+2]-43]) << (1*6);
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v |= (data[i+3] == '=' ? 0 : tab[data[i+3]-43]);
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dec[j++] = (v >> 16) & 0xff;
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if (data[i+2] != '=') dec[j++] = (v >> 8) & 0xff;
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if (data[i+3] != '=') dec[j++] = v & 0xff;
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}
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return j;
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}
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SPA_PRINTF_FUNC(2,3)
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static int MD5_hash(char hash[MD5_HASH_LENGTH+1], const char *fmt, ...)
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{
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@ -778,7 +736,7 @@ static int rtsp_add_raop_auth_header(struct impl *impl, const char *method)
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char buf[256];
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char enc[512];
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spa_scnprintf(buf, sizeof(buf), "%s:%s", RAOP_AUTH_USER_NAME, impl->password);
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base64_encode((uint8_t*)buf, strlen(buf), enc, '=');
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pw_base64_encode((uint8_t*)buf, strlen(buf), enc, '=');
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spa_scnprintf(auth, sizeof(auth), "Basic %s", enc);
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}
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else if (spa_streq(impl->auth_method, "Digest")) {
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@ -1136,8 +1094,8 @@ static int rsa_encrypt(uint8_t *data, int len, uint8_t *enc)
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"imNVvYFZeCXg/IdTQ+x4IRdiXNv5hEew==";
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char e[] = "AQAB";
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msize = base64_decode(n, strlen(n), modulus);
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esize = base64_decode(e, strlen(e), exponent);
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msize = pw_base64_decode(n, strlen(n), modulus);
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esize = pw_base64_decode(e, strlen(e), exponent);
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#if OPENSSL_API_LEVEL >= 30000
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EVP_PKEY *pkey = NULL;
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@ -1263,15 +1221,15 @@ static int rtsp_do_announce(struct impl *impl)
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(res = pw_getrandom(impl->aes_iv, sizeof(impl->aes_iv), 0)) < 0)
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return res;
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base64_encode(rac, sizeof(rac), sac, '\0');
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pw_base64_encode(rac, sizeof(rac), sac, '\0');
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pw_properties_set(impl->headers, "Apple-Challenge", sac);
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rsa_len = rsa_encrypt(impl->aes_key, 16, rsakey);
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if (rsa_len < 0)
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return -rsa_len;
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base64_encode(rsakey, rsa_len, key, '=');
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base64_encode(impl->aes_iv, 16, iv, '=');
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pw_base64_encode(rsakey, rsa_len, key, '=');
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pw_base64_encode(impl->aes_iv, 16, iv, '=');
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sdp = spa_aprintf("v=0\r\n"
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"o=iTunes %s 0 IN IP%d %s\r\n"
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62
src/modules/module-raop/base64.h
Normal file
62
src/modules/module-raop/base64.h
Normal file
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@ -0,0 +1,62 @@
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/* PipeWire */
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/* SPDX-FileCopyrightText: Copyright © 2026 Wim Taymans */
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/* SPDX-License-Identifier: MIT */
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#ifndef PIPEWIRE_BASE64_H
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#define PIPEWIRE_BASE64_H
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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static inline void pw_base64_encode(const uint8_t *data, size_t len, char *enc, char pad)
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{
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static const char tab[] =
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"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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size_t i;
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for (i = 0; i < len; i += 3) {
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uint32_t v;
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v = data[i+0] << 16;
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v |= (i+1 < len ? data[i+1] : 0) << 8;
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v |= (i+2 < len ? data[i+2] : 0);
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*enc++ = tab[(v >> (3*6)) & 0x3f];
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*enc++ = tab[(v >> (2*6)) & 0x3f];
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*enc++ = i+1 < len ? tab[(v >> (1*6)) & 0x3f] : pad;
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*enc++ = i+2 < len ? tab[(v >> (0*6)) & 0x3f] : pad;
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}
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*enc = '\0';
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}
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static inline size_t pw_base64_decode(const char *data, size_t len, uint8_t *dec)
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{
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uint8_t tab[] = {
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62, -1, -1, -1, 63, 52, 53, 54, 55, 56,
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57, 58, 59, 60, 61, -1, -1, -1, -1, -1,
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-1, -1, 0, 1, 2, 3, 4, 5, 6, 7,
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8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
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18, 19, 20, 21, 22, 23, 24, 25, -1, -1,
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-1, -1, -1, -1, 26, 27, 28, 29, 30, 31,
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32, 33, 34, 35, 36, 37, 38, 39, 40, 41,
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42, 43, 44, 45, 46, 47, 48, 49, 50, 51 };
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size_t i, j;
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for (i = 0, j = 0; i < len; i += 4) {
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uint32_t v;
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v = tab[data[i+0]-43] << (3*6);
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v |= tab[data[i+1]-43] << (2*6);
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v |= (data[i+2] == '=' ? 0 : tab[data[i+2]-43]) << (1*6);
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v |= (data[i+3] == '=' ? 0 : tab[data[i+3]-43]);
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dec[j++] = (v >> 16) & 0xff;
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if (data[i+2] != '=') dec[j++] = (v >> 8) & 0xff;
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if (data[i+3] != '=') dec[j++] = v & 0xff;
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}
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return j;
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}
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#ifdef __cplusplus
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}
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#endif
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#endif /* PIPEWIRE_BASE64_H */
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