3c7d6fcce7
Also fix up some return values and stuff to use bool (or void if nothing). I just did it whilst I was here. According to jilles, the return value used to signify whether or not the client had exited. This was error-prone and was fixed a long, long time ago, but the return value was left int for historical reasons. Since the return type is not used (and has no clear use case anyway), it's safe to just get rid of it.
110 lines
3.4 KiB
C
110 lines
3.4 KiB
C
/*
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* Copyright (c) 2012 William Pitcock <nenolod@dereferenced.org>.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice is present in all copies.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "stdinc.h"
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#include "client.h"
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#include "common.h"
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#include "match.h"
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#include "hash.h"
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#include "ircd.h"
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#include "numeric.h"
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#include "send.h"
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#include "msg.h"
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#include "modules.h"
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#include "sslproc.h"
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#include "s_assert.h"
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#include "s_serv.h"
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#include "logger.h"
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static const char starttls_desc[] = "Provides the tls CAP and STARTTLS command";
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static void mr_starttls(struct MsgBuf *, struct Client *, struct Client *, int, const char **);
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struct Message starttls_msgtab = {
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"STARTTLS", 0, 0, 0, 0,
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{{mr_starttls, 0}, mg_ignore, mg_ignore, mg_ignore, mg_ignore, mg_ignore}
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};
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mapi_clist_av1 starttls_clist[] = { &starttls_msgtab, NULL };
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unsigned int CLICAP_TLS = 0;
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#ifdef HAVE_LIBCRYPTO
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mapi_cap_list_av2 starttls_cap_list[] = {
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{ MAPI_CAP_CLIENT, "tls", NULL, &CLICAP_TLS },
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{ 0, NULL, NULL, NULL }
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};
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#else /* HAVE_LIBCRYPTO */
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mapi_cap_list_av2 starttls_cap_list[] = { { 0, NULL, NULL, NULL } };
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#endif /* HAVE_LIBCRYPTO */
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DECLARE_MODULE_AV2(starttls, NULL, NULL, starttls_clist, NULL, NULL, starttls_cap_list, NULL, starttls_desc);
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static void
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mr_starttls(struct MsgBuf *msgbuf_p, struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
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{
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#ifdef HAVE_LIBCRYPTO
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ssl_ctl_t *ctl;
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rb_fde_t *F[2];
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if (!MyConnect(client_p))
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return;
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if (IsSSL(client_p))
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{
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sendto_one_numeric(client_p, ERR_STARTTLS, form_str(ERR_STARTTLS), "Nested TLS handshake not allowed");
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return;
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}
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if (!ssl_ok || !get_ssld_count())
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{
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sendto_one_numeric(client_p, ERR_STARTTLS, form_str(ERR_STARTTLS), "TLS is not configured");
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return;
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}
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if (rb_socketpair(AF_UNIX, SOCK_STREAM, 0, &F[0], &F[1], "STARTTLS ssld session") == -1)
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{
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ilog_error("error creating SSL/TLS socketpair for ssld slave");
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sendto_one_numeric(client_p, ERR_STARTTLS, form_str(ERR_STARTTLS), "Unable to create SSL/TLS socketpair for ssld offload slave");
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return;
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}
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s_assert(client_p->localClient != NULL);
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/* clear out any remaining plaintext lines */
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rb_linebuf_donebuf(&client_p->localClient->buf_recvq);
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sendto_one_numeric(client_p, RPL_STARTTLS, form_str(RPL_STARTTLS));
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send_queued(client_p);
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ctl = start_ssld_accept(client_p->localClient->F, F[1], rb_get_fd(F[0]));
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if (ctl != NULL)
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{
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client_p->localClient->F = F[0];
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client_p->localClient->ssl_ctl = ctl;
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SetSSL(client_p);
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}
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#else /* HAVE_LIBCRYPTO */
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sendto_one_numeric(client_p, ERR_STARTTLS, form_str(ERR_STARTTLS), "TLS is not configured");
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#endif /* HAVE_LIBCRYPTO */
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}
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