tls_openssl.c File Reference

#include "config.h"
#include "../msg.h"
#include <assert.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <ctype.h>
#include <stdio.h>
#include <errno.h>
#include "../../dlib/dlib.h"
#include "../dialog.hh"
#include "../klist.h"
#include "iowatch.hh"
#include "tls.h"
#include "Url.h"
#include <openssl/ssl.h>
#include <openssl/rand.h>
#include <openssl/err.h>
#include <openssl/x509v3.h>
#include <openssl/crypto.h>

Include dependency graph for tls_openssl.c:

Go to the source code of this file.

Macros
#define	CERT_STATUS_NONE   0
#define	CERT_STATUS_RECEIVING   1
#define	CERT_STATUS_CLEAN   2
#define	CERT_STATUS_BAD   3
#define	CERT_STATUS_USER_ACCEPTED   4
#define	ASTERISK_EXCLUDES_DOT   /* mandated by rfc2818 */

Functions
static void	Tls_connect_cb (int fd, void *vconnkey)
static int	Tls_fd_map_cmp (const void *v1, const void *v2)
static void	Tls_fd_map_add_entry (int fd, int connkey)
static void	Tls_fd_map_remove_entry (int fd)
void *	a_Tls_openssl_connection (int fd)
static int	Tls_conn_new (int fd, const DilloUrl *url, SSL *ssl)
static void	Tls_info_cb (const SSL *ssl, int where, int ret)
static void	Tls_load_certificates (void)
void	a_Tls_openssl_init (void)
static int	Tls_save_certificate_home (X509 *cert)
static int	Tls_servers_cmp (const void *v1, const void *v2)
static int	Tls_servers_by_url_cmp (const void *v1, const void *v2)
int	a_Tls_openssl_connect_ready (const DilloUrl *url)
static int	Tls_cert_status (const DilloUrl *url)
static int	Tls_user_said_no (const DilloUrl *url)
int	a_Tls_openssl_certificate_is_clean (const DilloUrl *url)
static bool_t	Tls_check_cert_strength (SSL *ssl, Server_t *srv, int *choice)
static bool_t	pattern_match (const char *pattern, const char *string)
static bool_t	Tls_check_cert_hostname (X509 *cert, const char *host, int *choice)
static X509 *	Tls_get_end_of_chain (SSL *ssl)
static void	Tls_get_issuer_name (X509 *cert, char *buf, uint_t buflen)
static void	Tls_get_expiration_str (X509 *cert, char *buf, uint_t buflen)
static int	Tls_examine_certificate (SSL *ssl, Server_t *srv)
void	a_Tls_openssl_reset_server_state (const DilloUrl *url)
static void	Tls_close_by_key (int connkey)
static void	Tls_connect (int fd, int connkey)
void	a_Tls_openssl_connect (int fd, const DilloUrl *url)
static int	Tls_handle_error (Conn_t *conn, int ret, const char *where)
int	a_Tls_openssl_read (void *conn, void *buf, size_t len)
int	a_Tls_openssl_write (void *conn, void *buf, size_t len)
void	a_Tls_openssl_close_by_fd (int fd)
static void	Tls_servers_freeall (void)
static void	Tls_fd_map_remove_all (void)
void	a_Tls_openssl_freeall (void)

Variables
static Klist_t *	conn_list = NULL
static SSL_CTX *	ssl_context
static Dlist *	servers
static Dlist *	fd_map

Macro Definition Documentation

ASTERISK_EXCLUDES_DOT

#define ASTERISK_EXCLUDES_DOT   /* mandated by rfc2818 */

Definition at line 537 of file tls_openssl.c.

CERT_STATUS_BAD

#define CERT_STATUS_BAD   3

Definition at line 61 of file tls_openssl.c.

CERT_STATUS_CLEAN

#define CERT_STATUS_CLEAN   2

Definition at line 60 of file tls_openssl.c.

CERT_STATUS_NONE

#define CERT_STATUS_NONE   0

Definition at line 58 of file tls_openssl.c.

CERT_STATUS_RECEIVING

#define CERT_STATUS_RECEIVING   1

Definition at line 59 of file tls_openssl.c.

CERT_STATUS_USER_ACCEPTED

#define CERT_STATUS_USER_ACCEPTED   4

Definition at line 62 of file tls_openssl.c.

Function Documentation

a_Tls_openssl_certificate_is_clean()

int a_Tls_openssl_certificate_is_clean

(

const DilloUrl *

url

)

Definition at line 424 of file tls_openssl.c.

References CERT_STATUS_CLEAN, and Tls_cert_status().

Referenced by a_Tls_certificate_is_clean().

a_Tls_openssl_close_by_fd()

void a_Tls_openssl_close_by_fd

(

int

fd

)

Definition at line 1335 of file tls_openssl.c.

References dList_find_custom(), fd_map, INT2VOIDP, Tls_close_by_key(), and Tls_fd_map_cmp().

Referenced by a_Tls_close_by_fd().

a_Tls_openssl_connect()

void a_Tls_openssl_connect	(	int	fd,
		const DilloUrl *	url
	)

Definition at line 1213 of file tls_openssl.c.

References a_Http_connect_done(), a_Tls_openssl_reset_server_state(), a_Url_host_type(), FALSE, MSG, ssl_context, Tls_conn_new(), Tls_connect(), Tls_user_said_no(), TRUE, URL_HOST, and URL_HOST_NAME.

Referenced by a_Tls_connect().

a_Tls_openssl_connect_ready()

int a_Tls_openssl_connect_ready

(

const DilloUrl *

url

)

Definition at line 377 of file tls_openssl.c.

References CERT_STATUS_BAD, CERT_STATUS_NONE, CERT_STATUS_RECEIVING, dList_find_sorted(), dList_insert_sorted(), dNew, dStrdup(), servers, ssl_context, TLS_CONNECT_NEVER, TLS_CONNECT_NOT_YET, TLS_CONNECT_READY, Tls_servers_by_url_cmp(), Tls_servers_cmp(), URL_HOST, and URL_PORT.

Referenced by a_Tls_connect_ready().

a_Tls_openssl_connection()

void * a_Tls_openssl_connection

(

int

fd

)

Definition at line 145 of file tls_openssl.c.

References a_Klist_get_data(), conn_list, dList_find_custom(), fd_map, INT2VOIDP, and Tls_fd_map_cmp().

Referenced by a_Tls_connection().

a_Tls_openssl_freeall()

void a_Tls_openssl_freeall

(

void

)

Definition at line 1377 of file tls_openssl.c.

References ssl_context, Tls_fd_map_remove_all(), and Tls_servers_freeall().

Referenced by a_Tls_freeall().

a_Tls_openssl_init()

void a_Tls_openssl_init

(

void

)

Definition at line 252 of file tls_openssl.c.

References dList_new(), fd_map, MSG, MSG_ERR, servers, ssl_context, Tls_info_cb(), and Tls_load_certificates().

Referenced by a_Tls_init().

a_Tls_openssl_read()

int a_Tls_openssl_read	(	void *	conn,
		void *	buf,
		size_t	len
	)

Definition at line 1320 of file tls_openssl.c.

References Tls_handle_error().

Referenced by a_Tls_read().

a_Tls_openssl_reset_server_state()

void a_Tls_openssl_reset_server_state

(

const DilloUrl *

url

)

Definition at line 1036 of file tls_openssl.c.

References CERT_STATUS_NONE, CERT_STATUS_RECEIVING, dList_find_sorted(), servers, and Tls_servers_by_url_cmp().

Referenced by a_Tls_openssl_connect(), a_Tls_reset_server_state(), and Tls_close_by_key().

a_Tls_openssl_write()

int a_Tls_openssl_write	(	void *	conn,
		void *	buf,
		size_t	len
	)

Definition at line 1329 of file tls_openssl.c.

References Tls_handle_error().

Referenced by a_Tls_write().

pattern_match()

static bool_t pattern_match ( const char *  pattern, const char *  string  )

static

Definition at line 553 of file tls_openssl.c.

References FALSE, pattern_match(), and TRUE.

Referenced by pattern_match(), and Tls_check_cert_hostname().

Tls_cert_status()

static int Tls_cert_status ( const DilloUrl *  url )

static

Definition at line 404 of file tls_openssl.c.

References CERT_STATUS_NONE, dList_find_sorted(), servers, and Tls_servers_by_url_cmp().

Referenced by a_Tls_openssl_certificate_is_clean(), and Tls_user_said_no().

Tls_check_cert_hostname()

static bool_t Tls_check_cert_hostname ( X509 *  cert, const char *  host, int *  choice  )

static

Definition at line 586 of file tls_openssl.c.

References a_Dialog_choice(), dFree(), dStr_free(), dStr_new(), dStr_sprintf(), dStr_sprintfa(), dStrconcat(), FALSE, pattern_match(), Dstr::str, and TRUE.

Referenced by Tls_examine_certificate().

Tls_check_cert_strength()

static bool_t Tls_check_cert_strength ( SSL *  ssl, Server_t *  srv, int *  choice  )

static

Definition at line 439 of file tls_openssl.c.

References a_Dialog_choice(), CERT_STATUS_RECEIVING, FALSE, MSG, MSG_WARN, and TRUE.

Referenced by Tls_examine_certificate().

Tls_close_by_key()

static void Tls_close_by_key ( int  connkey )

static

Definition at line 1049 of file tls_openssl.c.

References a_IOwatch_remove_fd(), a_Klist_get_data(), a_Klist_remove(), a_Tls_openssl_reset_server_state(), a_Url_free(), conn_list, dClose(), dFree(), MSG, Tls_fd_map_remove_entry(), and URL_STR.

Referenced by a_Tls_openssl_close_by_fd(), and Tls_connect().

Tls_conn_new()

static int Tls_conn_new ( int  fd, const DilloUrl *  url, SSL *  ssl  )

static

Definition at line 162 of file tls_openssl.c.

References a_Klist_insert(), a_Url_dup(), conn_list, dNew0, FALSE, Tls_fd_map_add_entry(), and TRUE.

Referenced by a_Tls_openssl_connect().

Tls_connect()

static void Tls_connect ( int  fd, int  connkey  )

static

Definition at line 1080 of file tls_openssl.c.

References _MSG, a_Http_connect_done(), a_IOwatch_add_fd(), a_IOwatch_remove_fd(), a_Klist_get_data(), CERT_STATUS_RECEIVING, CERT_STATUS_USER_ACCEPTED, conn_list, DIO_READ, DIO_WRITE, dList_find_sorted(), dStrerror, failed, FALSE, INT2VOIDP, MSG, MSG_ERR, servers, Tls_close_by_key(), Tls_connect_cb(), Tls_examine_certificate(), Tls_servers_by_url_cmp(), TRUE, and URL_AUTHORITY.

Referenced by a_Tls_openssl_connect(), and Tls_connect_cb().

Tls_connect_cb()

static void Tls_connect_cb ( int  fd, void *  vconnkey  )

static

Definition at line 1205 of file tls_openssl.c.

References Tls_connect(), and VOIDP2INT.

Referenced by Tls_connect().

Tls_examine_certificate()

static int Tls_examine_certificate ( SSL *  ssl, Server_t *  srv  )

static

Definition at line 816 of file tls_openssl.c.

References a_Dialog_choice(), CERT_STATUS_BAD, CERT_STATUS_CLEAN, CERT_STATUS_USER_ACCEPTED, dFree(), dStrconcat(), Tls_check_cert_hostname(), Tls_check_cert_strength(), Tls_get_end_of_chain(), Tls_get_expiration_str(), Tls_get_issuer_name(), and Tls_save_certificate_home().

Referenced by Tls_connect().

Tls_fd_map_add_entry()

static void Tls_fd_map_add_entry ( int  fd, int  connkey  )

static

Definition at line 110 of file tls_openssl.c.

References dList_append(), dList_find_custom(), dNew0, fd_map, INT2VOIDP, MSG_ERR, and Tls_fd_map_cmp().

Referenced by Tls_conn_new().

Tls_fd_map_cmp()

static int Tls_fd_map_cmp ( const void *  v1, const void *  v2  )

static

Definition at line 102 of file tls_openssl.c.

References VOIDP2INT.

Referenced by a_Tls_openssl_close_by_fd(), a_Tls_openssl_connection(), Tls_fd_map_add_entry(), and Tls_fd_map_remove_entry().

Tls_fd_map_remove_all()

static void Tls_fd_map_remove_all ( void  )

static

Definition at line 1360 of file tls_openssl.c.

References dFree(), dList_free(), dList_length(), dList_nth_data(), and fd_map.

Referenced by a_Tls_openssl_freeall().

Tls_fd_map_remove_entry()

static void Tls_fd_map_remove_entry ( int  fd )

static

Definition at line 128 of file tls_openssl.c.

References dFree(), dList_find_custom(), dList_remove_fast(), fd_map, INT2VOIDP, MSG, and Tls_fd_map_cmp().

Referenced by Tls_close_by_key().

Tls_get_end_of_chain()

static X509 * Tls_get_end_of_chain ( SSL *  ssl )

static

Definition at line 778 of file tls_openssl.c.

Referenced by Tls_examine_certificate().

Tls_get_expiration_str()

static void Tls_get_expiration_str ( X509 *  cert, char *  buf, uint_t  buflen  )

static

Definition at line 795 of file tls_openssl.c.

Referenced by Tls_examine_certificate().

Tls_get_issuer_name()

static void Tls_get_issuer_name ( X509 *  cert, char *  buf, uint_t  buflen  )

static

Definition at line 785 of file tls_openssl.c.

Referenced by Tls_examine_certificate().

Tls_handle_error()

static int Tls_handle_error ( Conn_t *  conn, int  ret, const char *  where  )

static

Definition at line 1277 of file tls_openssl.c.

References FALSE, and MSG.

Referenced by a_Tls_openssl_read(), and a_Tls_openssl_write().

Tls_info_cb()

static void Tls_info_cb ( const SSL *  ssl, int  where, int  ret  )

static

Definition at line 184 of file tls_openssl.c.

References MSG.

Referenced by a_Tls_openssl_init().

Tls_load_certificates()

static void Tls_load_certificates ( void  )

static

Definition at line 202 of file tls_openssl.c.

References dFree(), dGethomedir(), dStrconcat(), and ssl_context.

Referenced by a_Tls_openssl_init().

Tls_save_certificate_home()

static int Tls_save_certificate_home ( X509 *  cert )

static

Definition at line 301 of file tls_openssl.c.

References dGethomedir(), and MSG.

Referenced by Tls_examine_certificate().

Tls_servers_by_url_cmp()

static int Tls_servers_by_url_cmp ( const void *  v1, const void *  v2  )

static

Definition at line 358 of file tls_openssl.c.

References dStrAsciiCasecmp(), URL_HOST, and URL_PORT.

Referenced by a_Tls_openssl_connect_ready(), a_Tls_openssl_reset_server_state(), Tls_cert_status(), and Tls_connect().

Tls_servers_cmp()

static int Tls_servers_cmp ( const void *  v1, const void *  v2  )

static

Definition at line 346 of file tls_openssl.c.

References dStrAsciiCasecmp().

Referenced by a_Tls_openssl_connect_ready().

Tls_servers_freeall()

static void Tls_servers_freeall ( void  )

static

Definition at line 1345 of file tls_openssl.c.

References dFree(), dList_free(), dList_length(), dList_nth_data(), and servers.

Referenced by a_Tls_openssl_freeall().

Tls_user_said_no()

static int Tls_user_said_no ( const DilloUrl *  url )

static

Definition at line 415 of file tls_openssl.c.

References CERT_STATUS_BAD, and Tls_cert_status().

Referenced by a_Tls_openssl_connect().

Variable Documentation

conn_list

Klist_t* conn_list = NULL

static

Definition at line 88 of file tls_openssl.c.

Referenced by a_Tls_openssl_connection(), Tls_close_by_key(), Tls_conn_new(), and Tls_connect().

fd_map

Dlist* fd_map

static

Definition at line 95 of file tls_openssl.c.

Referenced by a_Tls_openssl_close_by_fd(), a_Tls_openssl_connection(), a_Tls_openssl_init(), Tls_fd_map_add_entry(), Tls_fd_map_remove_all(), and Tls_fd_map_remove_entry().

servers

Dlist* servers

static

Definition at line 94 of file tls_openssl.c.

Referenced by a_Tls_openssl_connect_ready(), a_Tls_openssl_init(), a_Tls_openssl_reset_server_state(), Tls_cert_status(), Tls_connect(), and Tls_servers_freeall().

ssl_context

SSL_CTX* ssl_context

static

Definition at line 93 of file tls_openssl.c.

Referenced by a_Tls_openssl_connect(), a_Tls_openssl_connect_ready(), a_Tls_openssl_freeall(), a_Tls_openssl_init(), and Tls_load_certificates().