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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include "pool.h"
#include "repo.h"
#ifdef ENABLE_PUBKEY
#include "repo_pubkey.h"
#endif
#include "checksig.h"
#ifndef DEBIAN
static void
cleanupgpg(char *gpgdir)
{
char cmd[256];
snprintf(cmd, sizeof(cmd), "%s/pubring.gpg", gpgdir);
unlink(cmd);
snprintf(cmd, sizeof(cmd), "%s/pubring.gpg~", gpgdir);
unlink(cmd);
snprintf(cmd, sizeof(cmd), "%s/secring.gpg", gpgdir);
unlink(cmd);
snprintf(cmd, sizeof(cmd), "%s/trustdb.gpg", gpgdir);
unlink(cmd);
snprintf(cmd, sizeof(cmd), "%s/keys", gpgdir);
unlink(cmd);
snprintf(cmd, sizeof(cmd), "%s/pubring.kbx", gpgdir);
unlink(cmd);
snprintf(cmd, sizeof(cmd), "%s/pubring.kbx~", gpgdir);
unlink(cmd);
snprintf(cmd, sizeof(cmd), "%s/private-keys-v1.d", gpgdir);
rmdir(cmd);
rmdir(gpgdir);
}
int
checksig(Pool *sigpool, FILE *fp, FILE *sigfp)
{
char *gpgdir;
char *keysfile;
const char *pubkey, *pubring;
char cmd[256];
FILE *kfp;
Solvable *s;
Id p;
off_t posfp, possigfp;
int r, nkeys;
gpgdir = mkdtemp(pool_tmpjoin(sigpool, "/var/tmp/solvgpg.XXXXXX", 0, 0));
if (!gpgdir)
return 0;
keysfile = pool_tmpjoin(sigpool, gpgdir, "/keys", 0);
if (!(kfp = fopen(keysfile, "w")) )
{
cleanupgpg(gpgdir);
return 0;
}
nkeys = 0;
for (p = 1, s = sigpool->solvables + p; p < sigpool->nsolvables; p++, s++)
{
if (!s->repo)
continue;
pubkey = solvable_lookup_str(s, SOLVABLE_DESCRIPTION);
if (!pubkey || !*pubkey)
continue;
if (fwrite(pubkey, strlen(pubkey), 1, kfp) != 1)
break;
if (fputc('\n', kfp) == EOF) /* Just in case... */
break;
nkeys++;
}
if (fclose(kfp) || !nkeys || p < sigpool->nsolvables)
{
cleanupgpg(gpgdir);
return 0;
}
snprintf(cmd, sizeof(cmd), "gpg2 -q --homedir %s --import %s", gpgdir, keysfile);
if (system(cmd))
{
fprintf(stderr, "key import error\n");
cleanupgpg(gpgdir);
return 0;
}
unlink(keysfile);
posfp = lseek(fileno(fp), 0, SEEK_CUR);
lseek(fileno(fp), 0, SEEK_SET);
possigfp = lseek(fileno(sigfp), 0, SEEK_CUR);
lseek(fileno(sigfp), 0, SEEK_SET);
snprintf(cmd, sizeof(cmd), "%s/pubring.kbx", gpgdir);
pubring = access(cmd, R_OK) == 0 ? "pubring.kbx" : "pubring.gpg";
snprintf(cmd, sizeof(cmd), "gpgv -q --homedir %s --keyring %s/%s /dev/fd/%d /dev/fd/%d >/dev/null 2>&1", gpgdir, gpgdir, pubring, fileno(sigfp), fileno(fp));
fcntl(fileno(fp), F_SETFD, 0); /* clear CLOEXEC */
fcntl(fileno(sigfp), F_SETFD, 0); /* clear CLOEXEC */
r = system(cmd);
lseek(fileno(sigfp), possigfp, SEEK_SET);
lseek(fileno(fp), posfp, SEEK_SET);
fcntl(fileno(fp), F_SETFD, FD_CLOEXEC);
fcntl(fileno(sigfp), F_SETFD, FD_CLOEXEC);
cleanupgpg(gpgdir);
return r == 0 ? 1 : 0;
}
#else
int
checksig(Pool *sigpool, FILE *fp, FILE *sigfp)
{
char cmd[256];
int r;
snprintf(cmd, sizeof(cmd), "gpgv -q --keyring /etc/apt/trusted.gpg /dev/fd/%d /dev/fd/%d >/dev/null 2>&1", fileno(sigfp), fileno(fp));
fcntl(fileno(fp), F_SETFD, 0); /* clear CLOEXEC */
fcntl(fileno(sigfp), F_SETFD, 0); /* clear CLOEXEC */
r = system(cmd);
fcntl(fileno(fp), F_SETFD, FD_CLOEXEC);
fcntl(fileno(sigfp), F_SETFD, FD_CLOEXEC);
return r == 0 ? 1 : 0;
}
#endif
Pool *
read_sigs()
{
Pool *sigpool = pool_create();
#if defined(ENABLE_PUBKEY) && defined(ENABLE_RPMDB)
Repo *repo = repo_create(sigpool, "pubkeys");
repo_add_rpmdb_pubkeys(repo, 0);
#endif
return sigpool;
}
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