diff options
Diffstat (limited to 'librabbitmq/amqp_cyassl.c')
| -rw-r--r-- | librabbitmq/amqp_cyassl.c | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/librabbitmq/amqp_cyassl.c b/librabbitmq/amqp_cyassl.c new file mode 100644 index 0000000..1daf7a9 --- /dev/null +++ b/librabbitmq/amqp_cyassl.c @@ -0,0 +1,225 @@ +/* + * Copyright 2012 Michael Steinert + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "amqp_ssl_socket.h" +#include "amqp_private.h" +#include <cyassl/ssl.h> +#include <stdlib.h> + +struct amqp_ssl_socket_t { + CYASSL_CTX *ctx; + CYASSL *ssl; + int sockfd; + char *buffer; + size_t length; +}; + +static ssize_t +amqp_ssl_socket_send(void *base, + const void *buf, + size_t len, + AMQP_UNUSED int flags) +{ + struct amqp_ssl_socket_t *self = (struct amqp_ssl_socket_t *)base; + return CyaSSL_write(self->ssl, buf, len); +} + +static ssize_t +amqp_ssl_socket_writev(void *base, + const struct iovec *iov, + int iovcnt) +{ + struct amqp_ssl_socket_t *self = (struct amqp_ssl_socket_t *)base; + ssize_t written = -1; + char *bufferp; + size_t bytes; + int i; + bytes = 0; + for (i = 0; i < iovcnt; ++i) { + bytes += iov[i].iov_len; + } + if (self->length < bytes) { + free(self->buffer); + self->buffer = malloc(bytes); + if (!self->buffer) { + self->length = 0; + goto exit; + } + self->length = bytes; + } + bufferp = self->buffer; + for (i = 0; i < iovcnt; ++i) { + memcpy(bufferp, iov[i].iov_base, iov[i].iov_len); + bufferp += iov[i].iov_len; + } + written = CyaSSL_write(self->ssl, self->buffer, bytes); +exit: + return written; +} + +static ssize_t +amqp_ssl_socket_recv(void *base, + void *buf, + size_t len, + AMQP_UNUSED int flags) +{ + struct amqp_ssl_socket_t *self = (struct amqp_ssl_socket_t *)base; + return CyaSSL_read(self->ssl, buf, len); +} + +static int +amqp_ssl_socket_get_sockfd(void *base) +{ + struct amqp_ssl_socket_t *self = (struct amqp_ssl_socket_t *)base; + return self->sockfd; +} + +static int +amqp_ssl_socket_close(void *base) +{ + int status = -1; + struct amqp_ssl_socket_t *self = (struct amqp_ssl_socket_t *)base; + if (self->sockfd >= 0) { + status = amqp_os_socket_close(self->sockfd); + } + if (self) { + CyaSSL_free(self->ssl); + CyaSSL_CTX_free(self->ctx); + free(self->buffer); + free(self); + } + return status; +} + +static int +amqp_ssl_socket_error(AMQP_UNUSED void *user_data) +{ + return -1; +} + +static int +amqp_ssl_socket_open(void *base, const char *host, int port) +{ + struct amqp_ssl_socket_t *self = (struct amqp_ssl_socket_t *)base; + int status; + self->sockfd = amqp_open_socket(host, port); + if (0 > self->sockfd) { + return -1; + } + CyaSSL_set_fd(self->ssl, self->sockfd); + status = CyaSSL_connect(self->ssl); + if (SSL_SUCCESS != status) { + return -1; + } + return 0; +} + +static const struct amqp_socket_class_t amqp_ssl_socket_class = { + amqp_ssl_socket_writev, /* writev */ + amqp_ssl_socket_send, /* send */ + amqp_ssl_socket_recv, /* recv */ + amqp_ssl_socket_open, /* open */ + amqp_ssl_socket_close, /* close */ + amqp_ssl_socket_error, /* error */ + amqp_ssl_socket_get_sockfd /* get_sockfd */ +}; + +amqp_socket_t * +amqp_ssl_socket_new(void) +{ + struct amqp_ssl_socket_t *self = calloc(1, sizeof(*self)); + if (!self) { + goto error; + } + CyaSSL_Init(); + self->ctx = CyaSSL_CTX_new(CyaSSLv23_client_method()); + if (!self->ctx) { + goto error; + } + return (amqp_socket_t *)self; +error: + amqp_socket_close((amqp_socket_t *)self); + return NULL; +} + +int +amqp_ssl_socket_set_cacert(amqp_socket_t *base, + const char *cacert) +{ + int status; + struct amqp_ssl_socket_t *self; + if (base->klass != &amqp_ssl_socket_class) { + amqp_abort("<%p> is not of type amqp_ssl_socket_t", base); + } + self = (struct amqp_ssl_socket_t *)base; + status = CyaSSL_CTX_load_verify_locations(self->ctx, cacert, NULL); + if (SSL_SUCCESS != status) { + return -1; + } + return 0; +} + +int +amqp_ssl_socket_set_key(amqp_socket_t *base, + const char *cert, + const char *key) +{ + int status; + struct amqp_ssl_socket_t *self; + if (base->klass != &amqp_ssl_socket_class) { + amqp_abort("<%p> is not of type amqp_ssl_socket_t", base); + } + self = (struct amqp_ssl_socket_t *)base; + status = CyaSSL_CTX_use_PrivateKey_file(self->ctx, key, + SSL_FILETYPE_PEM); + if (SSL_SUCCESS != status) { + return -1; + } + status = CyaSSL_CTX_use_certificate_chain_file(self->ctx, cert); + return 0; +} + +int +amqp_ssl_socket_set_key_buffer(AMQP_UNUSED amqp_socket_t *base, + AMQP_UNUSED const char *cert, + AMQP_UNUSED const void *key, + AMQP_UNUSED size_t n) +{ + amqp_abort("%s is not implemented for CyaSSL", __func__); + return -1; +} + +void +amqp_ssl_socket_set_verify(AMQP_UNUSED amqp_socket_t *base, + AMQP_UNUSED amqp_boolean_t verify) +{ + /* noop for CyaSSL */ +} + +void +amqp_set_initialize_ssl_library(AMQP_UNUSED amqp_boolean_t do_initialize) +{ +} |