/*
* Copyright (C) 2017 Red Hat, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Author: Gris Ge <fge@redhat.com>
*/
#ifndef __ISCSI_USR_MISC_H__
#define __ISCSI_USR_MISC_H__
#include <stdint.h>
#include <stdbool.h>
#include <assert.h>
#include <stdarg.h>
#include <dirent.h>
#include <net/if.h>
#include "libopeniscsiusr/libopeniscsiusr.h"
#define _good(rc, rc_val, out) \
do { \
rc_val = rc; \
if (rc_val != LIBISCSI_OK) \
goto out; \
} while(0)
#define _asprintf(...) \
(asprintf(__VA_ARGS__) == -1 ? LIBISCSI_ERR_NOMEM : LIBISCSI_OK)
__DLL_LOCAL void _iscsi_log(struct iscsi_context *ctx, int priority,
const char *file, int line, const char *func_name,
const char *format, ...);
__DLL_LOCAL void _iscsi_log_stderr(struct iscsi_context *ctx, int priority,
const char *file, int line,
const char *func_name, const char *format,
va_list args);
#define _iscsi_log_cond(ctx, prio, arg...) \
do { \
if ((ctx != NULL) && \
(iscsi_context_log_priority_get(ctx) >= prio)) \
_iscsi_log(ctx, prio, __FILE__, __LINE__, \
__FUNCTION__, ## arg); \
} while (0)
#define _debug(ctx, arg...) \
_iscsi_log_cond(ctx, LIBISCSI_LOG_PRIORITY_DEBUG, ## arg)
#define _info(ctx, arg...) \
_iscsi_log_cond(ctx, LIBISCSI_LOG_PRIORITY_INFO, ## arg)
#define _warn(ctx, arg...) \
_iscsi_log_cond(ctx, LIBISCSI_LOG_PRIORITY_WARNING, ## arg)
#define _error(ctx, arg...) \
_iscsi_log_cond(ctx, LIBISCSI_LOG_PRIORITY_ERROR, ## arg)
#define _iscsi_getter_func_gen(struct_name, prop_name, prop_type) \
prop_type struct_name##_##prop_name##_get(struct struct_name *d) \
{ \
assert(d != NULL); \
return d->prop_name; \
}
/*
* Check pointer returned by malloc() or strdup() or calloc(), if NULL, set
* rc as LIBISCSI_ERR_NO_MEMORY, report error and goto goto_out.
*/
#define _alloc_null_check(ctx, ptr, rc, goto_out) \
do { \
if (ptr == NULL) { \
rc = LIBISCSI_ERR_NOMEM; \
_error(ctx, iscsi_strerror(rc)); \
goto goto_out; \
} \
} while(0)
#define _STRERR_BUFF_LEN 1024
#define _strerror(err_no, buff) \
strerror_r(err_no, buff, _STRERR_BUFF_LEN)
/* Workaround for suppress GCC 8 `stringop-truncation` warnings. */
#define _strncpy(dst, src, size) \
do { \
memcpy(dst, src, \
(size_t) size > strlen(src) ? \
strlen(src) : (size_t) size); \
* (char *) (dst + \
((size_t) size - 1 > strlen(src) ? \
strlen(src) : (size_t) (size - 1))) = '\0'; \
} while(0)
__DLL_LOCAL int _scan_filter_skip_dot(const struct dirent *dir);
__DLL_LOCAL bool _file_exists(const char *path);
#define _ETH_DRIVER_NAME_MAX_LEN 32
/* ^ Defined in linux/ethtool.h `struct ethtool_drvinfo`. */
struct _eth_if {
char driver_name[_ETH_DRIVER_NAME_MAX_LEN];
char if_name[IF_NAMESIZE];
};
__DLL_LOCAL int _eth_ifs_get(struct iscsi_context *ctx,
struct _eth_if ***eifs, uint32_t *eif_count);
__DLL_LOCAL void _eth_ifs_free(struct _eth_if **eifs, uint32_t eif_count);
__DLL_LOCAL int _scandir(struct iscsi_context *ctx, const char *dir_path,
struct dirent ***namelist, int *count);
__DLL_LOCAL void _scandir_free(struct dirent **namelist, int count);
#endif /* End of __ISCSI_USR_MISC_H__ */