Mercurial > galleryd
view daemon.c @ 1:c2e82909c9b5
daemon: basic skeleton
Drop all but file read/write and net access privs.
Signed-off-by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
author | Josef 'Jeff' Sipek <jeffpc@josefsipek.net> |
---|---|
date | Thu, 27 Jul 2017 01:27:55 +0300 |
parents | |
children | 545cda697d7a |
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/* * Copyright (c) 2017 Josef 'Jeff' Sipek <jeffpc@josefsipek.net> * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include <priv.h> #include <jeffpc/jeffpc.h> #include <jeffpc/version.h> #include <jeffpc/error.h> #include <jeffpc/types.h> #include "version.h" static int drop_privs() { static const char *privs[] = { "file_read", "file_write", "net_access", NULL, }; static const priv_ptype_t privsets[] = { PRIV_PERMITTED, PRIV_LIMIT, PRIV_INHERITABLE, }; priv_set_t *wanted; int ret; int i; wanted = priv_allocset(); if (!wanted) return -errno; priv_emptyset(wanted); for (i = 0; privs[i]; i++) { ret = priv_addset(wanted, privs[i]); if (ret) { ret = -errno; goto err_free; } } for (i = 0; i < ARRAY_LEN(privsets); i++) { ret = setppriv(PRIV_SET, privsets[i], wanted); if (ret == -1) { ret = -errno; break; } } err_free: priv_freeset(wanted); return ret; } int main(int argc, char **argv) { int ret; ASSERT0(putenv("TZ=UTC")); cmn_err(CE_INFO, "galleryd version %s", version_string); cmn_err(CE_INFO, "libjeffpc version %s", jeffpc_version); /* drop unneeded privs */ ret = drop_privs(); if (ret) goto err; jeffpc_init(NULL); return 0; err: cmn_err(CE_DEBUG, "Failed to inintialize: %s", xstrerror(ret)); return ret; }