xbps/lib/rpool.c

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/*-
* Copyright (c) 2009-2013 Juan Romero Pardines.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/utsname.h>
#include <stdio.h>
#include <stdbool.h>
#include <stdlib.h>
#include <libgen.h>
#include <string.h>
#include <errno.h>
#include "xbps_api_impl.h"
struct rpool {
SIMPLEQ_ENTRY(rpool) entries;
struct xbps_repo *repo;
};
static SIMPLEQ_HEAD(rpool_head, rpool) rpool_queue =
SIMPLEQ_HEAD_INITIALIZER(rpool_queue);
/**
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* @file lib/rpool.c
* @brief Repository pool routines
* @defgroup repopool Repository pool functions
*/
int HIDDEN
xbps_rpool_init(struct xbps_handle *xhp)
{
struct rpool *rp;
const char *repouri;
bool foundrepo = false;
int retval, rv = 0;
assert(xhp);
if (xhp->rpool_initialized)
return 0;
for (unsigned int i = 0; i < xbps_array_count(xhp->repositories); i++) {
rp = malloc(sizeof(struct rpool));
assert(rp);
xbps_array_get_cstring_nocopy(xhp->repositories, i, &repouri);
if ((rp->repo = xbps_repo_open(xhp, repouri)) == NULL) {
rp->repo = calloc(1, sizeof(struct xbps_repo));
assert(rp->repo);
rp->repo->xhp = xhp;
rp->repo->uri = repouri;
if (xbps_repository_is_remote(repouri))
rp->repo->is_remote = true;
}
if (rp->repo->is_remote) {
if (!rp->repo->is_signed) {
/* ignore unsigned repositories */
xbps_repo_invalidate(rp->repo);
} else {
/*
* Check the repository index signature against
* stored public key.
*/
retval = xbps_repo_key_verify(rp->repo);
if (retval == 0) {
/* signed, verified */
xbps_set_cb_state(xhp, XBPS_STATE_REPO_SIGVERIFIED,
0, repouri, NULL);
} else if (retval == EPERM) {
/* signed, unverified */
xbps_set_cb_state(xhp, XBPS_STATE_REPO_SIGUNVERIFIED,
0, repouri, NULL);
xbps_repo_invalidate(rp->repo);
} else {
/* any error */
xbps_dbg_printf(xhp, "[rpool] %s: key_verify %s\n",
repouri, strerror(retval));
xbps_repo_invalidate(rp->repo);
}
}
}
/*
* If repository has passed signature checks, add it to the pool.
*/
SIMPLEQ_INSERT_TAIL(&rpool_queue, rp, entries);
foundrepo = true;
xbps_dbg_printf(xhp, "[rpool] `%s' registered (%s, %s).\n",
repouri, rp->repo->is_signed ? "signed" : "unsigned",
rp->repo->is_verified ? "verified" : "unverified");
}
if (!foundrepo) {
/* no repositories available, error out */
rv = ENOTSUP;
goto out;
}
xhp->rpool_initialized = true;
xbps_dbg_printf(xhp, "[rpool] initialized ok.\n");
out:
if (rv != 0)
xbps_rpool_release(xhp);
return rv;
}
void HIDDEN
xbps_rpool_release(struct xbps_handle *xhp)
{
struct rpool *rp;
if (!xhp->rpool_initialized)
return;
while ((rp = SIMPLEQ_FIRST(&rpool_queue))) {
SIMPLEQ_REMOVE(&rpool_queue, rp, rpool, entries);
xbps_repo_close(rp->repo);
free(rp->repo);
free(rp);
}
xhp->rpool_initialized = false;
xbps_dbg_printf(xhp, "[rpool] released ok.\n");
}
int
xbps_rpool_sync(struct xbps_handle *xhp, const char *uri)
{
const char *repouri;
for (unsigned int i = 0; i < xbps_array_count(xhp->repositories); i++) {
xbps_array_get_cstring_nocopy(xhp->repositories, i, &repouri);
/* If argument was set just process that repository */
if (uri && strcmp(repouri, uri))
continue;
if (xbps_repo_sync(xhp, repouri) == -1) {
xbps_dbg_printf(xhp,
"[rpool] `%s' failed to fetch repository data: %s\n",
repouri, fetchLastErrCode == 0 ? strerror(errno) :
xbps_fetch_error_string());
continue;
}
}
return 0;
}
int
xbps_rpool_foreach(struct xbps_handle *xhp,
int (*fn)(struct xbps_repo *, void *, bool *),
void *arg)
{
struct rpool *rp;
int rv = 0;
bool done = false;
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assert(fn != NULL);
/* Initialize repository pool */
if ((rv = xbps_rpool_init(xhp)) != 0) {
if (rv == ENOTSUP) {
xbps_dbg_printf(xhp, "[rpool] empty repository list.\n");
} else if (rv != ENOENT && rv != ENOTSUP) {
xbps_dbg_printf(xhp, "[rpool] couldn't initialize: %s\n", strerror(rv));
}
return rv;
}
/* Iterate over repository pool */
SIMPLEQ_FOREACH(rp, &rpool_queue, entries) {
rv = (*fn)(rp->repo, arg, &done);
if (rv != 0 || done)
break;
}
return rv;
}