Refactor and rewrite.

Perl script is removed in favour of C. Stale documentation and initfiles are removed for now also. C interface works, but still needs work (for example, mDNS is missing) - see TODO.
2013-04-01 18:57:08 +11:00
parent 98a86371d0
commit a2fb5d219d
26 changed files with 1767 additions and 3524 deletions
@@ -0,0 +1,143 @@
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <memory.h>
+#include <openssl/rsa.h>
+#include <openssl/pem.h>
+#include <openssl/evp.h>
+#include <openssl/bio.h>
+#include <openssl/buffer.h>
+#include "common.h"
+
+shairport_cfg config;
+
+int debuglev = 1;
+
+void die(char *format, ...) {
+    fprintf(stderr, "FATAL: ");
+    va_list args;
+    va_start(args, format);
+    vfprintf(stderr, format, args);
+    va_end(args);
+    exit(1);
+}
+
+void warn(char *format, ...) {
+    fprintf(stderr, "WARNING: ");
+    va_list args;
+    va_start(args, format);
+    vfprintf(stderr, format, args);
+    va_end(args);
+}
+
+void debug(char *format, ...) {
+    if (!debuglev)
+        return;
+    fprintf(stderr, "DEBUG: ");
+    va_list args;
+    va_start(args, format);
+    vfprintf(stderr, format, args);
+    va_end(args);
+}
+
+
+char *base64_enc(uint8_t *input, int length) {
+    int ret;
+    BIO *bmem, *b64;
+    BUF_MEM *bptr;
+    b64 = BIO_new(BIO_f_base64());
+    bmem = BIO_new(BIO_s_mem());
+    b64 = BIO_push(b64, bmem);
+    BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
+    BIO_write(b64, input, length);
+    ret = BIO_flush(b64);
+    BIO_get_mem_ptr(b64, &bptr);
+
+    char *buf = (char *)malloc(bptr->length);
+    if (bptr->length) {
+        memcpy(buf, bptr->data, bptr->length-1);
+        buf[bptr->length-1] = 0;
+    }
+
+    BIO_free_all(bmem);
+
+    return buf;
+}
+
+uint8_t *base64_dec(char *input, int *outlen) {
+    int ret;
+    BIO *bmem, *b64;
+    int inlen = strlen(input);
+
+    b64 = BIO_new(BIO_f_base64());
+    BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
+    bmem = BIO_new(BIO_s_mem());
+    b64 = BIO_push(b64, bmem);
+
+    // Apple cut the padding off their challenges; restore it
+    BIO_write(bmem, input, inlen);
+    while (inlen++ & 3)
+        BIO_write(bmem, "=", 1);
+    ret = BIO_flush(bmem);
+    
+    int bufsize = strlen(input)*3/4 + 1;
+    uint8_t *buf = malloc(bufsize);
+    int nread;
+
+    nread = BIO_read(b64, buf, bufsize);
+
+    BIO_free_all(bmem);
+
+    *outlen = nread;
+    return buf;
+}
+
+static char super_secret_key[] = 
+"-----BEGIN RSA PRIVATE KEY-----\n"
+"MIIEpQIBAAKCAQEA59dE8qLieItsH1WgjrcFRKj6eUWqi+bGLOX1HL3U3GhC/j0Qg90u3sG/1CUt\n"
+"wC5vOYvfDmFI6oSFXi5ELabWJmT2dKHzBJKa3k9ok+8t9ucRqMd6DZHJ2YCCLlDRKSKv6kDqnw4U\n"
+"wPdpOMXziC/AMj3Z/lUVX1G7WSHCAWKf1zNS1eLvqr+boEjXuBOitnZ/bDzPHrTOZz0Dew0uowxf\n"
+"/+sG+NCK3eQJVxqcaJ/vEHKIVd2M+5qL71yJQ+87X6oV3eaYvt3zWZYD6z5vYTcrtij2VZ9Zmni/\n"
+"UAaHqn9JdsBWLUEpVviYnhimNVvYFZeCXg/IdTQ+x4IRdiXNv5hEewIDAQABAoIBAQDl8Axy9XfW\n"
+"BLmkzkEiqoSwF0PsmVrPzH9KsnwLGH+QZlvjWd8SWYGN7u1507HvhF5N3drJoVU3O14nDY4TFQAa\n"
+"LlJ9VM35AApXaLyY1ERrN7u9ALKd2LUwYhM7Km539O4yUFYikE2nIPscEsA5ltpxOgUGCY7b7ez5\n"
+"NtD6nL1ZKauw7aNXmVAvmJTcuPxWmoktF3gDJKK2wxZuNGcJE0uFQEG4Z3BrWP7yoNuSK3dii2jm\n"
+"lpPHr0O/KnPQtzI3eguhe0TwUem/eYSdyzMyVx/YpwkzwtYL3sR5k0o9rKQLtvLzfAqdBxBurciz\n"
+"aaA/L0HIgAmOit1GJA2saMxTVPNhAoGBAPfgv1oeZxgxmotiCcMXFEQEWflzhWYTsXrhUIuz5jFu\n"
+"a39GLS99ZEErhLdrwj8rDDViRVJ5skOp9zFvlYAHs0xh92ji1E7V/ysnKBfsMrPkk5KSKPrnjndM\n"
+"oPdevWnVkgJ5jxFuNgxkOLMuG9i53B4yMvDTCRiIPMQ++N2iLDaRAoGBAO9v//mU8eVkQaoANf0Z\n"
+"oMjW8CN4xwWA2cSEIHkd9AfFkftuv8oyLDCG3ZAf0vrhrrtkrfa7ef+AUb69DNggq4mHQAYBp7L+\n"
+"k5DKzJrKuO0r+R0YbY9pZD1+/g9dVt91d6LQNepUE/yY2PP5CNoFmjedpLHMOPFdVgqDzDFxU8hL\n"
+"AoGBANDrr7xAJbqBjHVwIzQ4To9pb4BNeqDndk5Qe7fT3+/H1njGaC0/rXE0Qb7q5ySgnsCb3DvA\n"
+"cJyRM9SJ7OKlGt0FMSdJD5KG0XPIpAVNwgpXXH5MDJg09KHeh0kXo+QA6viFBi21y340NonnEfdf\n"
+"54PX4ZGS/Xac1UK+pLkBB+zRAoGAf0AY3H3qKS2lMEI4bzEFoHeK3G895pDaK3TFBVmD7fV0Zhov\n"
+"17fegFPMwOII8MisYm9ZfT2Z0s5Ro3s5rkt+nvLAdfC/PYPKzTLalpGSwomSNYJcB9HNMlmhkGzc\n"
+"1JnLYT4iyUyx6pcZBmCd8bD0iwY/FzcgNDaUmbX9+XDvRA0CgYEAkE7pIPlE71qvfJQgoA9em0gI\n"
+"LAuE4Pu13aKiJnfft7hIjbK+5kyb3TysZvoyDnb3HOKvInK7vXbKuU4ISgxB2bB3HcYzQMGsz1qJ\n"
+"2gG0N5hvJpzwwhbhXqFKA4zaaSrw622wDniAK5MlIE0tIAKKP4yxNGjoD2QYjhBGuhvkWKY=\n"
+"-----END RSA PRIVATE KEY-----";
+
+uint8_t *rsa_apply(uint8_t *input, int inlen, int *outlen, int mode) {
+    static RSA *rsa = NULL;
+
+    if (!rsa) {
+        BIO *bmem = BIO_new_mem_buf(super_secret_key, -1);
+        rsa = PEM_read_bio_RSAPrivateKey(bmem, NULL, NULL, NULL);
+        BIO_free(bmem);
+    }
+
+    uint8_t *out = malloc(RSA_size(rsa));
+    switch (mode) {
+        case RSA_MODE_AUTH:
+            *outlen = RSA_private_encrypt(inlen, input, out, rsa,
+                                          RSA_PKCS1_PADDING);
+            break;
+        case RSA_MODE_KEY:
+            *outlen = RSA_private_decrypt(inlen, input, out, rsa,
+                                          RSA_PKCS1_OAEP_PADDING);
+            break;
+        default:
+            die("bad rsa mode");
+    }
+    return out;
+}