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authorAdam Harrison <adamdharrison@gmail.com>2022-11-26 16:20:59 -0500
committerAdam Harrison <adamdharrison@gmail.com>2022-11-29 18:39:46 -0500
commitfc0c4ed9a3103e0e6534311923668879fc8e0875 (patch)
tree6e7723c3f45d39f06c243d9c18a3c038da948793 /lib/mbedtls-2.27.0/programs/fuzz/fuzz_dtlsserver.c
parent3836606e2b735ba7b2dc0f580231843660587fb4 (diff)
downloadlite-xl-plugin-manager-fc0c4ed9a3103e0e6534311923668879fc8e0875.tar.gz
lite-xl-plugin-manager-fc0c4ed9a3103e0e6534311923668879fc8e0875.zip
Removed openssl, and curl, and added mbedded tls.curl-removal
Almost fully removed curl, needs more testing. Fixed most issues, now trying to cross compile. Fix? Sigh.
Diffstat (limited to 'lib/mbedtls-2.27.0/programs/fuzz/fuzz_dtlsserver.c')
-rw-r--r--lib/mbedtls-2.27.0/programs/fuzz/fuzz_dtlsserver.c148
1 files changed, 148 insertions, 0 deletions
diff --git a/lib/mbedtls-2.27.0/programs/fuzz/fuzz_dtlsserver.c b/lib/mbedtls-2.27.0/programs/fuzz/fuzz_dtlsserver.c
new file mode 100644
index 0000000..4cde1fe
--- /dev/null
+++ b/lib/mbedtls-2.27.0/programs/fuzz/fuzz_dtlsserver.c
@@ -0,0 +1,148 @@
+#include <string.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include "common.h"
+#include "mbedtls/ssl.h"
+#if defined(MBEDTLS_SSL_PROTO_DTLS)
+#include "mbedtls/entropy.h"
+#include "mbedtls/ctr_drbg.h"
+#include "mbedtls/certs.h"
+#include "mbedtls/timing.h"
+#include "mbedtls/ssl_cookie.h"
+
+
+#if defined(MBEDTLS_SSL_SRV_C) && \
+ defined(MBEDTLS_ENTROPY_C) && \
+ defined(MBEDTLS_CTR_DRBG_C) && \
+ defined(MBEDTLS_TIMING_C)
+const char *pers = "fuzz_dtlsserver";
+const unsigned char client_ip[4] = {0x7F, 0, 0, 1};
+static int initialized = 0;
+#if defined(MBEDTLS_X509_CRT_PARSE_C) && defined(MBEDTLS_PEM_PARSE_C)
+static mbedtls_x509_crt srvcert;
+static mbedtls_pk_context pkey;
+#endif
+#endif
+#endif // MBEDTLS_SSL_PROTO_DTLS
+
+int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+#if defined(MBEDTLS_SSL_PROTO_DTLS) && \
+ defined(MBEDTLS_SSL_SRV_C) && \
+ defined(MBEDTLS_ENTROPY_C) && \
+ defined(MBEDTLS_CTR_DRBG_C) && \
+ defined(MBEDTLS_TIMING_C)
+ int ret;
+ size_t len;
+ mbedtls_ssl_context ssl;
+ mbedtls_ssl_config conf;
+ mbedtls_ctr_drbg_context ctr_drbg;
+ mbedtls_entropy_context entropy;
+ mbedtls_timing_delay_context timer;
+ mbedtls_ssl_cookie_ctx cookie_ctx;
+ unsigned char buf[4096];
+ fuzzBufferOffset_t biomemfuzz;
+
+ if (initialized == 0) {
+#if defined(MBEDTLS_X509_CRT_PARSE_C) && defined(MBEDTLS_PEM_PARSE_C)
+ mbedtls_x509_crt_init( &srvcert );
+ mbedtls_pk_init( &pkey );
+ if (mbedtls_x509_crt_parse( &srvcert, (const unsigned char *) mbedtls_test_srv_crt,
+ mbedtls_test_srv_crt_len ) != 0)
+ return 1;
+ if (mbedtls_x509_crt_parse( &srvcert, (const unsigned char *) mbedtls_test_cas_pem,
+ mbedtls_test_cas_pem_len ) != 0)
+ return 1;
+ if (mbedtls_pk_parse_key( &pkey, (const unsigned char *) mbedtls_test_srv_key,
+ mbedtls_test_srv_key_len, NULL, 0 ) != 0)
+ return 1;
+#endif
+ dummy_init();
+
+ initialized = 1;
+ }
+ mbedtls_ssl_init( &ssl );
+ mbedtls_ssl_config_init( &conf );
+ mbedtls_ctr_drbg_init( &ctr_drbg );
+ mbedtls_entropy_init( &entropy );
+ mbedtls_ssl_cookie_init( &cookie_ctx );
+
+ if( mbedtls_ctr_drbg_seed( &ctr_drbg, dummy_entropy, &entropy,
+ (const unsigned char *) pers, strlen( pers ) ) != 0 )
+ goto exit;
+
+
+ if( mbedtls_ssl_config_defaults( &conf,
+ MBEDTLS_SSL_IS_SERVER,
+ MBEDTLS_SSL_TRANSPORT_DATAGRAM,
+ MBEDTLS_SSL_PRESET_DEFAULT ) != 0 )
+ goto exit;
+
+
+ srand(1);
+ mbedtls_ssl_conf_rng( &conf, dummy_random, &ctr_drbg );
+
+#if defined(MBEDTLS_X509_CRT_PARSE_C) && defined(MBEDTLS_PEM_PARSE_C)
+ mbedtls_ssl_conf_ca_chain( &conf, srvcert.next, NULL );
+ if( mbedtls_ssl_conf_own_cert( &conf, &srvcert, &pkey ) != 0 )
+ goto exit;
+#endif
+
+ if( mbedtls_ssl_cookie_setup( &cookie_ctx, dummy_random, &ctr_drbg ) != 0 )
+ goto exit;
+
+ mbedtls_ssl_conf_dtls_cookies( &conf, mbedtls_ssl_cookie_write, mbedtls_ssl_cookie_check, &cookie_ctx );
+
+ if( mbedtls_ssl_setup( &ssl, &conf ) != 0 )
+ goto exit;
+
+ mbedtls_ssl_set_timer_cb( &ssl, &timer, mbedtls_timing_set_delay,
+ mbedtls_timing_get_delay );
+
+ biomemfuzz.Data = Data;
+ biomemfuzz.Size = Size;
+ biomemfuzz.Offset = 0;
+ mbedtls_ssl_set_bio( &ssl, &biomemfuzz, dummy_send, fuzz_recv, fuzz_recv_timeout );
+ if( mbedtls_ssl_set_client_transport_id( &ssl, client_ip, sizeof(client_ip) ) != 0 )
+ goto exit;
+
+ ret = mbedtls_ssl_handshake( &ssl );
+
+ if (ret == MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED) {
+ biomemfuzz.Offset = ssl.next_record_offset;
+ mbedtls_ssl_session_reset( &ssl );
+ mbedtls_ssl_set_bio( &ssl, &biomemfuzz, dummy_send, fuzz_recv, fuzz_recv_timeout );
+ if( mbedtls_ssl_set_client_transport_id( &ssl, client_ip, sizeof(client_ip) ) != 0 )
+ goto exit;
+
+ ret = mbedtls_ssl_handshake( &ssl );
+
+ if( ret == 0 )
+ {
+ //keep reading data from server until the end
+ do
+ {
+ len = sizeof( buf ) - 1;
+ ret = mbedtls_ssl_read( &ssl, buf, len );
+ if( ret == MBEDTLS_ERR_SSL_WANT_READ )
+ continue;
+ else if( ret <= 0 )
+ //EOF or error
+ break;
+ }
+ while( 1 );
+ }
+ }
+
+exit:
+ mbedtls_ssl_cookie_free( &cookie_ctx );
+ mbedtls_entropy_free( &entropy );
+ mbedtls_ctr_drbg_free( &ctr_drbg );
+ mbedtls_ssl_config_free( &conf );
+ mbedtls_ssl_free( &ssl );
+
+#else
+ (void) Data;
+ (void) Size;
+#endif
+ return 0;
+}