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pkgdb.c
3203 lines (2781 loc) · 78 KB
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pkgdb.c
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/*-
* Copyright (c) 2011-2016 Baptiste Daroussin <bapt@FreeBSD.org>
* Copyright (c) 2011-2012 Julien Laffaye <jlaffaye@FreeBSD.org>
* Copyright (c) 2011 Will Andrews <will@FreeBSD.org>
* Copyright (c) 2011 Philippe Pepiot <phil@philpep.org>
* Copyright (c) 2011-2012 Marin Atanasov Nikolov <dnaeon@gmail.com>
* Copyright (c) 2012-2013 Matthew Seaman <matthew@FreeBSD.org>
* Copyright (c) 2012 Bryan Drewery <bryan@shatow.net>
* Copyright (c) 2013 Gerald Pfeifer <gerald@pfeifer.com>
* Copyright (c) 2013-2014 Vsevolod Stakhov <vsevolod@FreeBSD.org>
* 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
* in this position and unchanged.
* 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(S) ``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(S) 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.
*/
#ifdef HAVE_CONFIG_H
#include "pkg_config.h"
#endif
#include <bsd_compat.h>
#include <sys/param.h>
#include <sys/mount.h>
#include <assert.h>
#include <errno.h>
#include <regex.h>
#include <grp.h>
#ifdef HAVE_LIBUTIL_H
#include <libutil.h>
#endif
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include <unistd.h>
#include <signal.h>
#include <fcntl.h>
#include <sqlite3.h>
#if defined(HAVE_SYS_STATVFS_H)
#include <sys/statvfs.h>
#endif
#include "pkg.h"
#include "private/event.h"
#include "private/pkg.h"
#include "private/pkgdb.h"
#include "private/utils.h"
#include "private/pkg_deps.h"
#include "kvec.h"
#include "private/db_upgrades.h"
extern struct pkg_ctx ctx;
/* An application using a libpkg() DBVERSION is assumed to be compatible
with:
* Any lower schema version of the DB, by updating the schema to DBVERSION
* Any equal schema version of the DB
* Any greater schema version of the DB with the same DB_SCHEMA_MAJOR
-- In general, it is OK to add new tables, but modifying or removing old
tables must be avoided. If necessary, this may be achieved by creating
appropriate VIEWS and TRIGGERS to mimic the older structure.
Anyone wishing to make a schema change that necessitates incrementing
DB_SCHEMA_MAJOR must first present every other pkgng developer with one
of the Golden Apples of the Hesperides
*/
#define DB_SCHEMA_MAJOR 0
#define DB_SCHEMA_MINOR 35
#define DBVERSION (DB_SCHEMA_MAJOR * 1000 + DB_SCHEMA_MINOR)
static int pkgdb_upgrade(struct pkgdb *);
static int prstmt_initialize(struct pkgdb *db);
/* static int run_prstmt(sql_prstmt_index s, ...); */
static void prstmt_finalize(struct pkgdb *db);
static int pkgdb_insert_scripts(struct pkg *pkg, int64_t package_id, sqlite3 *s);
static int pkgdb_insert_lua_scripts(struct pkg *pkg, int64_t package_id, sqlite3 *s);
extern int sqlite3_shell(int, char**);
struct sqlite3_stmt *
prepare_sql(sqlite3 *s, const char *sql)
{
int ret;
sqlite3_stmt *stmt;
ret = sqlite3_prepare_v2(s, sql, strlen(sql), &stmt,
NULL);
if (ret != SQLITE_OK) {
ERROR_SQLITE(s, sql);
return (NULL);
}
return (stmt);
}
void
pkgdb_regex(sqlite3_context *ctx, int argc, sqlite3_value **argv)
{
const unsigned char *regex = NULL;
const unsigned char *str;
regex_t *re;
int ret;
if (argc != 2 || (regex = sqlite3_value_text(argv[0])) == NULL ||
(str = sqlite3_value_text(argv[1])) == NULL) {
sqlite3_result_error(ctx, "SQL function regex() called "
"with invalid arguments.\n", -1);
return;
}
re = (regex_t *)sqlite3_get_auxdata(ctx, 0);
if (re == NULL) {
int cflags;
if (pkgdb_case_sensitive())
cflags = REG_EXTENDED | REG_NOSUB;
else
cflags = REG_EXTENDED | REG_NOSUB | REG_ICASE;
re = xmalloc(sizeof(regex_t));
if (regcomp(re, regex, cflags) != 0) {
sqlite3_result_error(ctx, "Invalid regex\n", -1);
free(re);
return;
}
sqlite3_set_auxdata(ctx, 0, re, pkgdb_regex_delete);
}
ret = regexec(re, str, 0, NULL, 0);
sqlite3_result_int(ctx, (ret != REG_NOMATCH));
}
static void
pkgdb_split_common(sqlite3_context *ctx, int argc, sqlite3_value **argv,
char delim, const char *first, const char *second)
{
const unsigned char *what = NULL;
const unsigned char *data;
const unsigned char *pos;
if (argc != 2 || (what = sqlite3_value_text(argv[0])) == NULL ||
(data = sqlite3_value_text(argv[1])) == NULL) {
sqlite3_result_error(ctx, "SQL function split_*() called "
"with invalid arguments.\n", -1);
return;
}
if (strcasecmp(what, first) == 0) {
pos = strrchr(data, delim);
if (pos != NULL)
sqlite3_result_text(ctx, data, (pos - data), NULL);
else
sqlite3_result_text(ctx, data, -1, NULL);
}
else if (strcasecmp(what, second) == 0) {
pos = strrchr(data, delim);
if (pos != NULL)
sqlite3_result_text(ctx, pos + 1, -1, NULL);
else
sqlite3_result_text(ctx, data, -1, NULL);
}
else {
sqlite3_result_error(ctx, "SQL function split_*() called "
"with invalid arguments.\n", -1);
}
}
void
pkgdb_split_version(sqlite3_context *ctx, int argc, sqlite3_value **argv)
{
pkgdb_split_common(ctx, argc, argv, '-', "name", "version");
}
void
pkgdb_regex_delete(void *p)
{
regex_t *re = (regex_t *)p;
regfree(re);
free(re);
}
void
pkgdb_now(sqlite3_context *ctx, int argc, __unused sqlite3_value **argv)
{
if (argc != 0) {
sqlite3_result_error(ctx, "Invalid usage of now() "
"no arguments expected\n", -1);
return;
}
sqlite3_result_int64(ctx, (int64_t)time(NULL));
}
static void
pkgdb_vercmp(sqlite3_context *ctx, int argc, sqlite3_value **argv)
{
const char *op_str, *arg1, *arg2;
enum pkg_dep_version_op op;
int cmp;
bool ret;
if (argc != 3) {
sqlite3_result_error(ctx, "Invalid usage of vercmp\n", -1);
return;
}
op_str = sqlite3_value_text(argv[0]);
arg1 = sqlite3_value_text(argv[1]);
arg2 = sqlite3_value_text(argv[2]);
if (op_str == NULL || arg1 == NULL || arg2 == NULL) {
sqlite3_result_error(ctx, "Invalid usage of vercmp\n", -1);
return;
}
op = pkg_deps_string_toop(op_str);
cmp = pkg_version_cmp(arg1, arg2);
switch(op) {
case VERSION_ANY:
default:
ret = true;
break;
case VERSION_EQ:
ret = (cmp == 0);
break;
case VERSION_GE:
ret = (cmp >= 0);
break;
case VERSION_LE:
ret = (cmp <= 0);
break;
case VERSION_GT:
ret = (cmp > 0);
break;
case VERSION_LT:
ret = (cmp < 0);
break;
case VERSION_NOT:
ret = (cmp != 0);
break;
}
sqlite3_result_int(ctx, ret);
}
static int
pkgdb_upgrade(struct pkgdb *db)
{
int64_t db_version = -1;
const char *sql_upgrade;
int i, ret;
assert(db != NULL);
ret = get_pragma(db->sqlite, "PRAGMA user_version;", &db_version, false);
if (ret != EPKG_OK)
return (EPKG_FATAL);
if (db_version == DBVERSION)
return (EPKG_OK);
else if (db_version > DBVERSION) {
if (db_version / 1000 <= DB_SCHEMA_MAJOR) {
/* VIEWS and TRIGGERS used as compatibility hack */
pkg_emit_error("warning: database version %" PRId64
" is newer than libpkg(3) version %d, but still "
"compatible", db_version, DBVERSION);
return (EPKG_OK);
} else {
pkg_emit_error("database version %" PRId64 " is newer "
"than and incompatible with libpkg(3) version %d",
db_version, DBVERSION);
return (EPKG_FATAL);
}
}
while (db_version < DBVERSION) {
const char *sql_str;
if (sqlite3_db_readonly(db->sqlite, "main")) {
pkg_emit_error("The database is outdated and "
"opened readonly");
return (EPKG_FATAL);
}
db_version++;
i = 0;
sql_upgrade = NULL;
while (db_upgrades[i].version != -1) {
if (db_upgrades[i].version == db_version) {
sql_upgrade = db_upgrades[i].sql;
break;
}
i++;
}
/*
* We can't find the statements to upgrade to the next version,
* maybe because the current version is too old and upgrade
* support has been removed.
*/
if (sql_upgrade == NULL) {
pkg_emit_error("can not upgrade to db version %" PRId64,
db_version);
return (EPKG_FATAL);
}
if (pkgdb_transaction_begin_sqlite(db->sqlite, NULL) != EPKG_OK)
return (EPKG_FATAL);
if (sql_exec(db->sqlite, sql_upgrade) != EPKG_OK) {
pkgdb_transaction_rollback_sqlite(db->sqlite, NULL);
return (EPKG_FATAL);
}
sql_str = "PRAGMA user_version = %" PRId64 ";";
ret = sql_exec(db->sqlite, sql_str, db_version);
if (ret != EPKG_OK) {
pkgdb_transaction_rollback_sqlite(db->sqlite, NULL);
return (EPKG_FATAL);
}
if (pkgdb_transaction_commit_sqlite(db->sqlite, NULL) != EPKG_OK)
return (EPKG_FATAL);
}
return (EPKG_OK);
}
/*
* in the database :
* scripts.type can be:
* - 0: PRE_INSTALL
* - 1: POST_INSTALL
* - 2: PRE_DEINSTALL
* - 3: POST_DEINSTALL
* - 4: PRE_UPGRADE
* - 5: POST_UPGRADE
* - 6: INSTALL
* - 7: DEINSTALL
* - 8: UPGRADE
*/
static int
pkgdb_init(sqlite3 *sdb)
{
const char sql[] = ""
"BEGIN;"
"CREATE TABLE packages ("
"id INTEGER PRIMARY KEY,"
"origin TEXT NOT NULL,"
"name TEXT NOT NULL,"
"version TEXT NOT NULL,"
"comment TEXT NOT NULL,"
"desc TEXT NOT NULL,"
"mtree_id INTEGER REFERENCES mtree(id) ON DELETE RESTRICT"
" ON UPDATE CASCADE,"
"message TEXT,"
"arch TEXT NOT NULL,"
"maintainer TEXT NOT NULL, "
"www TEXT,"
"prefix TEXT NOT NULL,"
"flatsize INTEGER NOT NULL,"
"automatic INTEGER NOT NULL,"
"locked INTEGER NOT NULL DEFAULT 0,"
"licenselogic INTEGER NOT NULL,"
"time INTEGER, "
"manifestdigest TEXT NULL, "
"pkg_format_version INTEGER,"
"dep_formula TEXT NULL"
",vital INTEGER NOT NULL DEFAULT 0"
");"
"CREATE UNIQUE INDEX packages_unique ON packages(name);"
"CREATE TABLE mtree ("
"id INTEGER PRIMARY KEY,"
"content TEXT NOT NULL UNIQUE"
");"
"CREATE TABLE pkg_script ("
"package_id INTEGER REFERENCES packages(id) ON DELETE CASCADE"
" ON UPDATE CASCADE,"
"type INTEGER,"
"script_id INTEGER REFERENCES script(script_id)"
" ON DELETE RESTRICT ON UPDATE CASCADE,"
"PRIMARY KEY (package_id, type)"
");"
"CREATE TABLE script ("
"script_id INTEGER PRIMARY KEY,"
"script TEXT NOT NULL UNIQUE"
");"
"CREATE TABLE option ("
"option_id INTEGER PRIMARY KEY,"
"option TEXT NOT NULL UNIQUE"
");"
"CREATE TABLE option_desc ("
"option_desc_id INTEGER PRIMARY KEY,"
"option_desc TEXT NOT NULL UNIQUE"
");"
"CREATE TABLE pkg_option ("
"package_id INTEGER NOT NULL REFERENCES packages(id) "
"ON DELETE CASCADE ON UPDATE CASCADE,"
"option_id INTEGER NOT NULL REFERENCES option(option_id) "
"ON DELETE RESTRICT ON UPDATE CASCADE,"
"value TEXT NOT NULL,"
"PRIMARY KEY(package_id, option_id)"
");"
"CREATE TABLE pkg_option_desc ("
"package_id INTEGER NOT NULL REFERENCES packages(id) "
"ON DELETE CASCADE ON UPDATE CASCADE,"
"option_id INTEGER NOT NULL REFERENCES option(option_id) "
"ON DELETE RESTRICT ON UPDATE CASCADE,"
"option_desc_id INTEGER NOT NULL "
"REFERENCES option_desc(option_desc_id) "
"ON DELETE RESTRICT ON UPDATE CASCADE,"
"PRIMARY KEY(package_id, option_id)"
");"
"CREATE TABLE pkg_option_default ("
"package_id INTEGER NOT NULL REFERENCES packages(id) "
"ON DELETE CASCADE ON UPDATE CASCADE,"
"option_id INTEGER NOT NULL REFERENCES option(option_id) "
"ON DELETE RESTRICT ON UPDATE CASCADE,"
"default_value TEXT NOT NULL,"
"PRIMARY KEY(package_id, option_id)"
");"
"CREATE TABLE deps ("
"origin TEXT NOT NULL,"
"name TEXT NOT NULL,"
"version TEXT NOT NULL,"
"package_id INTEGER REFERENCES packages(id) ON DELETE CASCADE"
" ON UPDATE CASCADE"
");"
"CREATE UNIQUE INDEX deps_unique ON deps(name, version, package_id);"
"CREATE TABLE files ("
"path TEXT PRIMARY KEY,"
"sha256 TEXT,"
"package_id INTEGER REFERENCES packages(id) ON DELETE CASCADE"
" ON UPDATE CASCADE"
");"
"CREATE TABLE directories ("
"id INTEGER PRIMARY KEY,"
"path TEXT NOT NULL UNIQUE"
");"
"CREATE TABLE pkg_directories ("
"package_id INTEGER REFERENCES packages(id) ON DELETE CASCADE"
" ON UPDATE CASCADE,"
"directory_id INTEGER REFERENCES directories(id) ON DELETE RESTRICT"
" ON UPDATE RESTRICT,"
"try INTEGER,"
"PRIMARY KEY (package_id, directory_id)"
");"
"CREATE TABLE categories ("
"id INTEGER PRIMARY KEY,"
"name TEXT NOT NULL UNIQUE"
");"
"CREATE TABLE pkg_categories ("
"package_id INTEGER REFERENCES packages(id) ON DELETE CASCADE"
" ON UPDATE CASCADE,"
"category_id INTEGER REFERENCES categories(id) ON DELETE RESTRICT"
" ON UPDATE RESTRICT,"
"PRIMARY KEY (package_id, category_id)"
");"
"CREATE TABLE licenses ("
"id INTEGER PRIMARY KEY,"
"name TEXT NOT NULL UNIQUE"
");"
"CREATE TABLE pkg_licenses ("
"package_id INTEGER REFERENCES packages(id) ON DELETE CASCADE"
" ON UPDATE CASCADE,"
"license_id INTEGER REFERENCES licenses(id) ON DELETE RESTRICT"
" ON UPDATE RESTRICT,"
"PRIMARY KEY (package_id, license_id)"
");"
"CREATE TABLE users ("
"id INTEGER PRIMARY KEY,"
"name TEXT NOT NULL UNIQUE"
");"
"CREATE TABLE pkg_users ("
"package_id INTEGER REFERENCES packages(id) ON DELETE CASCADE"
" ON UPDATE CASCADE,"
"user_id INTEGER REFERENCES users(id) ON DELETE RESTRICT"
" ON UPDATE RESTRICT,"
"UNIQUE(package_id, user_id)"
");"
"CREATE TABLE groups ("
"id INTEGER PRIMARY KEY,"
"name TEXT NOT NULL UNIQUE"
");"
"CREATE TABLE pkg_groups ("
"package_id INTEGER REFERENCES packages(id) ON DELETE CASCADE"
" ON UPDATE CASCADE,"
"group_id INTEGER REFERENCES groups(id) ON DELETE RESTRICT"
" ON UPDATE RESTRICT,"
"UNIQUE(package_id, group_id)"
");"
"CREATE TABLE shlibs ("
"id INTEGER PRIMARY KEY,"
"name TEXT NOT NULL UNIQUE"
");"
"CREATE TABLE pkg_shlibs_required ("
"package_id INTEGER NOT NULL REFERENCES packages(id)"
" ON DELETE CASCADE ON UPDATE CASCADE,"
"shlib_id INTEGER NOT NULL REFERENCES shlibs(id)"
" ON DELETE RESTRICT ON UPDATE RESTRICT,"
"UNIQUE (package_id, shlib_id)"
");"
"CREATE TABLE pkg_shlibs_provided ("
"package_id INTEGER NOT NULL REFERENCES packages(id)"
" ON DELETE CASCADE ON UPDATE CASCADE,"
"shlib_id INTEGER NOT NULL REFERENCES shlibs(id)"
" ON DELETE RESTRICT ON UPDATE RESTRICT,"
"UNIQUE (package_id, shlib_id)"
");"
"CREATE TABLE annotation ("
"annotation_id INTEGER PRIMARY KEY,"
"annotation TEXT NOT NULL UNIQUE"
");"
"CREATE TABLE pkg_annotation ("
"package_id INTEGER REFERENCES packages(id)"
" ON DELETE CASCADE ON UPDATE RESTRICT,"
"tag_id INTEGER NOT NULL REFERENCES annotation(annotation_id)"
" ON DELETE CASCADE ON UPDATE RESTRICT,"
"value_id INTEGER NOT NULL REFERENCES annotation(annotation_id)"
" ON DELETE CASCADE ON UPDATE RESTRICT,"
"UNIQUE (package_id, tag_id)"
");"
"CREATE TABLE pkg_conflicts ("
"package_id INTEGER NOT NULL REFERENCES packages(id)"
" ON DELETE CASCADE ON UPDATE CASCADE,"
"conflict_id INTEGER NOT NULL,"
"UNIQUE(package_id, conflict_id)"
");"
"CREATE TABLE pkg_lock ("
"exclusive INTEGER(1),"
"advisory INTEGER(1),"
"read INTEGER(8)"
");"
"CREATE TABLE pkg_lock_pid ("
"pid INTEGER PRIMARY KEY"
");"
"INSERT INTO pkg_lock VALUES(0,0,0);"
"CREATE TABLE provides("
" id INTEGER PRIMARY KEY,"
" provide TEXT NOT NULL"
");"
"CREATE TABLE pkg_provides ("
"package_id INTEGER NOT NULL REFERENCES packages(id)"
" ON DELETE CASCADE ON UPDATE CASCADE,"
"provide_id INTEGER NOT NULL REFERENCES provides(id)"
" ON DELETE RESTRICT ON UPDATE RESTRICT,"
"UNIQUE(package_id, provide_id)"
");"
"CREATE TABLE config_files ("
"path TEXT NOT NULL UNIQUE, "
"content TEXT, "
"package_id INTEGER REFERENCES packages(id) ON DELETE CASCADE"
" ON UPDATE CASCADE"
");"
/* Mark the end of the array */
"CREATE INDEX deporigini on deps(origin);"
"CREATE INDEX pkg_script_package_id ON pkg_script(package_id);"
"CREATE INDEX deps_package_id ON deps (package_id);"
"CREATE INDEX files_package_id ON files (package_id);"
"CREATE INDEX pkg_directories_package_id ON pkg_directories (package_id);"
"CREATE INDEX pkg_categories_package_id ON pkg_categories (package_id);"
"CREATE INDEX pkg_licenses_package_id ON pkg_licenses (package_id);"
"CREATE INDEX pkg_users_package_id ON pkg_users (package_id);"
"CREATE INDEX pkg_groups_package_id ON pkg_groups (package_id);"
"CREATE INDEX pkg_shlibs_required_package_id ON pkg_shlibs_required (package_id);"
"CREATE INDEX pkg_shlibs_provided_package_id ON pkg_shlibs_provided (package_id);"
"CREATE INDEX pkg_directories_directory_id ON pkg_directories (directory_id);"
"CREATE INDEX pkg_annotation_package_id ON pkg_annotation(package_id);"
"CREATE INDEX pkg_digest_id ON packages(origin, manifestdigest);"
"CREATE INDEX pkg_conflicts_pid ON pkg_conflicts(package_id);"
"CREATE INDEX pkg_conflicts_cid ON pkg_conflicts(conflict_id);"
"CREATE INDEX pkg_provides_id ON pkg_provides(package_id);"
"CREATE INDEX packages_origin ON packages(origin COLLATE NOCASE);"
"CREATE INDEX packages_name ON packages(name COLLATE NOCASE);"
"CREATE VIEW pkg_shlibs AS SELECT * FROM pkg_shlibs_required;"
"CREATE TRIGGER pkg_shlibs_update "
"INSTEAD OF UPDATE ON pkg_shlibs "
"FOR EACH ROW BEGIN "
"UPDATE pkg_shlibs_required "
"SET package_id = new.package_id, "
" shlib_id = new.shlib_id "
"WHERE shlib_id = old.shlib_id "
"AND package_id = old.package_id; "
"END;"
"CREATE TRIGGER pkg_shlibs_insert "
"INSTEAD OF INSERT ON pkg_shlibs "
"FOR EACH ROW BEGIN "
"INSERT INTO pkg_shlibs_required (shlib_id, package_id) "
"VALUES (new.shlib_id, new.package_id); "
"END;"
"CREATE TRIGGER pkg_shlibs_delete "
"INSTEAD OF DELETE ON pkg_shlibs "
"FOR EACH ROW BEGIN "
"DELETE FROM pkg_shlibs_required "
"WHERE shlib_id = old.shlib_id "
"AND package_id = old.package_id; "
"END;"
"CREATE VIEW scripts AS SELECT package_id, script, type"
" FROM pkg_script ps JOIN script s"
" ON (ps.script_id = s.script_id);"
"CREATE TRIGGER scripts_update"
" INSTEAD OF UPDATE ON scripts "
"FOR EACH ROW BEGIN"
" INSERT OR IGNORE INTO script(script)"
" VALUES(new.script);"
" UPDATE pkg_script"
" SET package_id = new.package_id,"
" type = new.type,"
" script_id = ( SELECT script_id"
" FROM script WHERE script = new.script )"
" WHERE package_id = old.package_id"
" AND type = old.type;"
"END;"
"CREATE TRIGGER scripts_insert"
" INSTEAD OF INSERT ON scripts "
"FOR EACH ROW BEGIN"
" INSERT OR IGNORE INTO script(script)"
" VALUES(new.script);"
" INSERT INTO pkg_script(package_id, type, script_id) "
" SELECT new.package_id, new.type, s.script_id"
" FROM script s WHERE new.script = s.script;"
"END;"
"CREATE TRIGGER scripts_delete"
" INSTEAD OF DELETE ON scripts "
"FOR EACH ROW BEGIN"
" DELETE FROM pkg_script"
" WHERE package_id = old.package_id"
" AND type = old.type;"
" DELETE FROM script"
" WHERE script_id NOT IN"
" (SELECT DISTINCT script_id FROM pkg_script);"
"END;"
"CREATE VIEW options AS "
"SELECT package_id, option, value "
"FROM pkg_option JOIN option USING(option_id);"
"CREATE TRIGGER options_update "
"INSTEAD OF UPDATE ON options "
"FOR EACH ROW BEGIN "
"UPDATE pkg_option "
"SET value = new.value "
"WHERE package_id = old.package_id AND "
"option_id = ( SELECT option_id FROM option "
"WHERE option = old.option );"
"END;"
"CREATE TRIGGER options_insert "
"INSTEAD OF INSERT ON options "
"FOR EACH ROW BEGIN "
"INSERT OR IGNORE INTO option(option) "
"VALUES(new.option);"
"INSERT INTO pkg_option(package_id, option_id, value) "
"VALUES (new.package_id, "
"(SELECT option_id FROM option "
"WHERE option = new.option), "
"new.value);"
"END;"
"CREATE TRIGGER options_delete "
"INSTEAD OF DELETE ON options "
"FOR EACH ROW BEGIN "
"DELETE FROM pkg_option "
"WHERE package_id = old.package_id AND "
"option_id = ( SELECT option_id FROM option "
"WHERE option = old.option );"
"DELETE FROM option "
"WHERE option_id NOT IN "
"( SELECT DISTINCT option_id FROM pkg_option );"
"END;"
"CREATE TABLE requires("
" id INTEGER PRIMARY KEY,"
" require TEXT NOT NULL"
");"
"CREATE TABLE pkg_requires ("
"package_id INTEGER NOT NULL REFERENCES packages(id)"
" ON DELETE CASCADE ON UPDATE CASCADE,"
"require_id INTEGER NOT NULL REFERENCES requires(id)"
" ON DELETE RESTRICT ON UPDATE RESTRICT,"
"UNIQUE(package_id, require_id)"
");"
"CREATE TABLE lua_script("
" lua_script_id INTEGER PRIMARY KEY,"
" lua_script TEXT NOT NULL UNIQUE"
");"
"CREATE TABLE pkg_lua_script ("
"package_id INTEGER NOT NULL REFERENCES packages(id)"
" ON DELETE CASCADE ON UPDATE CASCADE,"
"lua_script_id INTEGER NOT NULL REFERENCES lua_script(lua_script_id)"
" ON DELETE RESTRICT ON UPDATE RESTRICT,"
"type INTEGER,"
"UNIQUE(package_id, lua_script_id)"
");"
"CREATE VIEW lua_scripts AS "
"SELECT package_id, lua_script, type "
"FROM pkg_lua_script JOIN lua_script USING(lua_script_id);"
"CREATE TRIGGER lua_script_update "
"INSTEAD OF UPDATE ON lua_scripts "
"FOR EACH ROW BEGIN "
"UPDATE pkg_lua_script "
"SET type = new.type "
"WHERE package_id = old.package_id AND "
"lua_script_id = (SELECT lua_script_id FROM lua_script "
"WHERE lua_script = old.lua_script );"
"END;"
"CREATE TRIGGER lua_script_insert "
"INSTEAD OF INSERT ON lua_scripts "
"FOR EACH ROW BEGIN "
"INSERT OR IGNORE INTO lua_script(lua_script) "
"VALUES(new.lua_script);"
"INSERT INTO pkg_lua_script(package_id, lua_script_id, type) "
"VALUES (new.package_id, "
"(SELECT lua_script_id FROM lua_script "
"WHERE lua_script = new.lua_script), "
"new.type);"
"END;"
"CREATE TRIGGER lua_script_delete "
"INSTEAD OF DELETE ON lua_scripts "
"FOR EACH ROW BEGIN "
"DELETE FROM pkg_lua_script "
"WHERE package_id = old.package_id AND "
"lua_script_id = ( SELECT lua_script_id FROM lua_script "
"WHERE lua_script = old.lua_script );"
"DELETE FROM lua_script "
"WHERE lua_script_id NOT IN "
"( SELECT DISTINCT lua_script_id from lua_script );"
"END;"
"PRAGMA user_version = %d;"
"COMMIT;"
;
return (sql_exec(sdb, sql, DBVERSION));
}
static int
pkgdb_is_insecure_mode(int dbdirfd, const char *path, bool install_as_user)
{
uid_t fileowner;
gid_t filegroup;
bool bad_perms = false;
bool wrong_owner = false;
struct stat sb;
if (dbdirfd == -1)
return (EPKG_ENODB);
if (install_as_user) {
fileowner = geteuid();
filegroup = getegid();
} else {
fileowner = 0;
filegroup = 0;
}
if (fstatat(dbdirfd, path, &sb, 0) != 0) {
if (errno == EACCES)
return (EPKG_ENOACCESS);
else if (errno == ENOENT)
return (EPKG_ENODB);
else
return (EPKG_FATAL);
}
/* if fileowner == 0, root ownership and no group or other
read access. if fileowner != 0, require no other read
access and group read access IFF the group ownership ==
filegroup */
if ( fileowner == 0 ) {
if ((sb.st_mode & (S_IWGRP|S_IWOTH)) != 0)
bad_perms = true;
if (sb.st_uid != fileowner)
wrong_owner = true;
} else {
if ((sb.st_mode & S_IWOTH) != 0)
bad_perms = true;
if (sb.st_gid != filegroup && (sb.st_mode & S_IWGRP) != 0)
bad_perms = true;
if (sb.st_uid != 0 && sb.st_uid != fileowner && sb.st_gid != filegroup)
wrong_owner = true;
}
if (bad_perms) {
pkg_emit_error("%s permissions (%#o) too lax", path,
(sb.st_mode & (S_IRWXU|S_IRWXG|S_IRWXO)));
return (EPKG_INSECURE);
}
if (wrong_owner) {
pkg_emit_error("%s wrong user or group ownership"
" (expected %d/%d versus actual %d/%d)",
path, fileowner, filegroup, sb.st_uid, sb.st_gid);
return (EPKG_INSECURE);
}
return (EPKG_OK);
}
int
pkgdb_check_access(unsigned mode, const char *dbname)
{
const char *dbpath = ".";
int retval;
bool database_exists;
bool install_as_user;
int dbdirfd = pkg_get_dbdirfd();
if (dbname != NULL)
dbpath = dbname;
install_as_user = (getenv("INSTALL_AS_USER") != NULL);
retval = pkgdb_is_insecure_mode(dbdirfd, dbpath, install_as_user);
database_exists = (retval != EPKG_ENODB);
if (database_exists && retval != EPKG_OK)
return (retval);
if (!database_exists && (mode & PKGDB_MODE_CREATE) != 0)
return (EPKG_OK);
retval = -1;
switch(mode & (PKGDB_MODE_READ|PKGDB_MODE_WRITE)) {
case 0: /* Existence test */
if (dbdirfd == -1)
goto out;
retval = faccessat(dbdirfd, dbpath, F_OK, AT_EACCESS);
break;
case PKGDB_MODE_READ:
if (dbdirfd == -1)
goto out;
retval = faccessat(dbdirfd, dbpath, R_OK, AT_EACCESS);
break;
case PKGDB_MODE_WRITE:
if (dbdirfd == -1) {
mkdirs(ctx.dbdir);
dbdirfd = pkg_get_dbdirfd();
if (dbdirfd == -1)
goto out;
}
retval = faccessat(dbdirfd, dbpath, W_OK, AT_EACCESS);
break;
case PKGDB_MODE_READ|PKGDB_MODE_WRITE:
if (dbdirfd == -1) {
mkdirs(ctx.dbdir);
dbdirfd = pkg_get_dbdirfd();
if (dbdirfd == -1)
goto out;
}
retval = faccessat(dbdirfd, dbpath, R_OK|W_OK, AT_EACCESS);
break;
}
out:
if (retval != 0) {
if (errno == ENOENT)
return (EPKG_ENODB);
else if (errno == EACCES || errno == EROFS)
return (EPKG_ENOACCESS);
else
return (EPKG_FATAL);
}
return (EPKG_OK);
}
int
pkgdb_access(unsigned mode, unsigned database)
{
int retval = EPKG_OK;
/*
* This will return one of:
*
* EPKG_ENODB: a database doesn't exist and we don't want to create
* it, or dbdir doesn't exist
*
* EPKG_INSECURE: the dbfile or one of the directories in the
* path to it are writable by other than root or
* (if $INSTALL_AS_USER is set) the current euid
* and egid
*
* EPKG_ENOACCESS: we don't have privileges to read or write
*
* EPKG_FATAL: Couldn't determine the answer for other reason,
* like configuration screwed up, invalid argument values,
* read-only filesystem, etc.
*
* EPKG_OK: We can go ahead
*/
if ((mode & ~(PKGDB_MODE_READ|PKGDB_MODE_WRITE|PKGDB_MODE_CREATE))
!= 0)
return (EPKG_FATAL); /* EINVAL */
if ((database & ~(PKGDB_DB_LOCAL|PKGDB_DB_REPO)) != 0)
return (EPKG_FATAL); /* EINVAL */
/* Test the enclosing directory: if we're going to create the
DB, then we need read and write permissions on the dir.
Otherwise, just test for read access */
if ((mode & PKGDB_MODE_CREATE) != 0) {
retval = pkgdb_check_access(PKGDB_MODE_READ|PKGDB_MODE_WRITE,
NULL);
} else
retval = pkgdb_check_access(PKGDB_MODE_READ, NULL);
if (retval != EPKG_OK)
return (retval);
/* Test local.sqlite, if required */
if ((database & PKGDB_DB_LOCAL) != 0) {
retval = pkgdb_check_access(mode, "local.sqlite");
if (retval != EPKG_OK)
return (retval);
}
if ((database & PKGDB_DB_REPO) != 0) {
struct pkg_repo *r = NULL;
while (pkg_repos(&r) == EPKG_OK) {
/* Ignore any repos marked as inactive */
if (!pkg_repo_enabled(r))
continue;
retval = r->ops->access(r, mode);
if (retval != EPKG_OK) {
if (retval == EPKG_ENODB &&
mode == PKGDB_MODE_READ)
pkg_emit_error("Repository %s missing."
" 'pkg update' required", r->name);
return (retval);
}
}
}
return (retval);
}
static int
pkgdb_profile_callback(unsigned type __unused, void *ud __unused,
void *stmt, void *X)
{
sqlite3_uint64 nsec = *((sqlite3_uint64*)X);
const char *req = sqlite3_sql((sqlite3_stmt *)stmt);
/* According to sqlite3 documentation, nsec has milliseconds accuracy */
nsec /= 1000000LLU;
if (nsec > 0)
pkg_debug(1, "Sqlite request %s was executed in %lu milliseconds",
req, (unsigned long)nsec);
return (0);
}
int
pkgdb_open(struct pkgdb **db_p, pkgdb_t type)
{
return (pkgdb_open_all(db_p, type, NULL));
}
static int
pkgdb_open_repos(struct pkgdb *db, const char *reponame)
{
struct pkg_repo *r = NULL;
struct _pkg_repo_list_item *item;
while (pkg_repos(&r) == EPKG_OK) {
if (!r->enable) {
continue;
}
if (reponame == NULL || strcasecmp(r->name, reponame) == 0) {