mirror of
https://git.FreeBSD.org/src.git
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814f9a1824
Make it possible to compile libnv in the kernel. Mostly this involves wrapping functions that have a different signature in the kernel and in userland (e.g. malloc()) in a macro that will conditionally expand to the right API depending on whether the code is being compiled for the kernel or not. I have also #ifdef'ed out all of file descriptor-handling code, as well as the unsafe varargs functions. Differential Revision: https://reviews.freebsd.org/D1882 Reviewed by: jfv MFC after: 1 month Sponsored by: Sandvine Inc
323 lines
16 KiB
C
323 lines
16 KiB
C
/*-
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* Copyright (c) 2009-2013 The FreeBSD Foundation
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* All rights reserved.
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*
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* This software was developed by Pawel Jakub Dawidek under sponsorship from
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* the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _NV_H_
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#define _NV_H_
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#include <sys/cdefs.h>
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#ifndef _KERNEL
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#include <stdarg.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#endif
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#ifndef _NVLIST_T_DECLARED
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#define _NVLIST_T_DECLARED
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struct nvlist;
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typedef struct nvlist nvlist_t;
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#endif
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#define NV_NAME_MAX 2048
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#define NV_TYPE_NONE 0
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#define NV_TYPE_NULL 1
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#define NV_TYPE_BOOL 2
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#define NV_TYPE_NUMBER 3
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#define NV_TYPE_STRING 4
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#define NV_TYPE_NVLIST 5
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#define NV_TYPE_DESCRIPTOR 6
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#define NV_TYPE_BINARY 7
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/*
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* Perform case-insensitive lookups of provided names.
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*/
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#define NV_FLAG_IGNORE_CASE 0x01
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#if defined(_KERNEL) && defined(MALLOC_DECLARE)
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MALLOC_DECLARE(M_NVLIST);
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#endif
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__BEGIN_DECLS
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nvlist_t *nvlist_create(int flags);
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void nvlist_destroy(nvlist_t *nvl);
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int nvlist_error(const nvlist_t *nvl);
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bool nvlist_empty(const nvlist_t *nvl);
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void nvlist_set_error(nvlist_t *nvl, int error);
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nvlist_t *nvlist_clone(const nvlist_t *nvl);
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#ifndef _KERNEL
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void nvlist_dump(const nvlist_t *nvl, int fd);
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void nvlist_fdump(const nvlist_t *nvl, FILE *fp);
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#endif
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size_t nvlist_size(const nvlist_t *nvl);
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void *nvlist_pack(const nvlist_t *nvl, size_t *sizep);
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nvlist_t *nvlist_unpack(const void *buf, size_t size);
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int nvlist_send(int sock, const nvlist_t *nvl);
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nvlist_t *nvlist_recv(int sock);
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nvlist_t *nvlist_xfer(int sock, nvlist_t *nvl);
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const char *nvlist_next(const nvlist_t *nvl, int *typep, void **cookiep);
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const nvlist_t *nvlist_get_parent(const nvlist_t *nvl, void **cookiep);
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/*
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* The nvlist_exists functions check if the given name (optionally of the given
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* type) exists on nvlist.
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*/
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bool nvlist_exists(const nvlist_t *nvl, const char *name);
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bool nvlist_exists_type(const nvlist_t *nvl, const char *name, int type);
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bool nvlist_exists_null(const nvlist_t *nvl, const char *name);
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bool nvlist_exists_bool(const nvlist_t *nvl, const char *name);
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bool nvlist_exists_number(const nvlist_t *nvl, const char *name);
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bool nvlist_exists_string(const nvlist_t *nvl, const char *name);
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bool nvlist_exists_nvlist(const nvlist_t *nvl, const char *name);
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#ifndef _KERNEL
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bool nvlist_exists_descriptor(const nvlist_t *nvl, const char *name);
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#endif
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bool nvlist_exists_binary(const nvlist_t *nvl, const char *name);
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/*
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* The nvlist_add functions add the given name/value pair.
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* If a pointer is provided, nvlist_add will internally allocate memory for the
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* given data (in other words it won't consume provided buffer).
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*/
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void nvlist_add_null(nvlist_t *nvl, const char *name);
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void nvlist_add_bool(nvlist_t *nvl, const char *name, bool value);
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void nvlist_add_number(nvlist_t *nvl, const char *name, uint64_t value);
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void nvlist_add_string(nvlist_t *nvl, const char *name, const char *value);
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void nvlist_add_stringf(nvlist_t *nvl, const char *name, const char *valuefmt, ...) __printflike(3, 4);
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#ifdef _VA_LIST_DECLARED
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void nvlist_add_stringv(nvlist_t *nvl, const char *name, const char *valuefmt, va_list valueap) __printflike(3, 0);
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#endif
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void nvlist_add_nvlist(nvlist_t *nvl, const char *name, const nvlist_t *value);
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#ifndef _KERNEL
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void nvlist_add_descriptor(nvlist_t *nvl, const char *name, int value);
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#endif
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void nvlist_add_binary(nvlist_t *nvl, const char *name, const void *value, size_t size);
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/*
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* The nvlist_move functions add the given name/value pair.
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* The functions consumes provided buffer.
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*/
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void nvlist_move_string(nvlist_t *nvl, const char *name, char *value);
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void nvlist_move_nvlist(nvlist_t *nvl, const char *name, nvlist_t *value);
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#ifndef _KERNEL
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void nvlist_move_descriptor(nvlist_t *nvl, const char *name, int value);
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#endif
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void nvlist_move_binary(nvlist_t *nvl, const char *name, void *value, size_t size);
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/*
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* The nvlist_get functions returns value associated with the given name.
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* If it returns a pointer, the pointer represents internal buffer and should
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* not be freed by the caller.
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*/
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bool nvlist_get_bool(const nvlist_t *nvl, const char *name);
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uint64_t nvlist_get_number(const nvlist_t *nvl, const char *name);
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const char *nvlist_get_string(const nvlist_t *nvl, const char *name);
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const nvlist_t *nvlist_get_nvlist(const nvlist_t *nvl, const char *name);
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#ifndef _KERNEL
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int nvlist_get_descriptor(const nvlist_t *nvl, const char *name);
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#endif
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const void *nvlist_get_binary(const nvlist_t *nvl, const char *name, size_t *sizep);
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/*
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* The nvlist_take functions returns value associated with the given name and
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* remove the given entry from the nvlist.
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* The caller is responsible for freeing received data.
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*/
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bool nvlist_take_bool(nvlist_t *nvl, const char *name);
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uint64_t nvlist_take_number(nvlist_t *nvl, const char *name);
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char *nvlist_take_string(nvlist_t *nvl, const char *name);
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nvlist_t *nvlist_take_nvlist(nvlist_t *nvl, const char *name);
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#ifndef _KERNEL
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int nvlist_take_descriptor(nvlist_t *nvl, const char *name);
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#endif
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void *nvlist_take_binary(nvlist_t *nvl, const char *name, size_t *sizep);
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/*
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* The nvlist_free functions removes the given name/value pair from the nvlist
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* and frees memory associated with it.
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*/
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void nvlist_free(nvlist_t *nvl, const char *name);
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void nvlist_free_type(nvlist_t *nvl, const char *name, int type);
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void nvlist_free_null(nvlist_t *nvl, const char *name);
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void nvlist_free_bool(nvlist_t *nvl, const char *name);
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void nvlist_free_number(nvlist_t *nvl, const char *name);
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void nvlist_free_string(nvlist_t *nvl, const char *name);
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void nvlist_free_nvlist(nvlist_t *nvl, const char *name);
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#ifndef _KERNEL
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void nvlist_free_descriptor(nvlist_t *nvl, const char *name);
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#endif
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void nvlist_free_binary(nvlist_t *nvl, const char *name);
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/*
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* Below are the same functions, but which operate on format strings and
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* variable argument lists.
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*
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* Functions that are not inserting a new pair into the nvlist cannot handle
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* a failure to allocate the memory to hold the new name. Therefore these
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* functions are not provided in the kernel.
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*/
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#ifndef _KERNEL
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bool nvlist_existsf(const nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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bool nvlist_existsf_type(const nvlist_t *nvl, int type, const char *namefmt, ...) __printflike(3, 4);
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bool nvlist_existsf_null(const nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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bool nvlist_existsf_bool(const nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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bool nvlist_existsf_number(const nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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bool nvlist_existsf_string(const nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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bool nvlist_existsf_nvlist(const nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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bool nvlist_existsf_descriptor(const nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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bool nvlist_existsf_binary(const nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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bool nvlist_existsv(const nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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bool nvlist_existsv_type(const nvlist_t *nvl, int type, const char *namefmt, va_list nameap) __printflike(3, 0);
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bool nvlist_existsv_null(const nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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bool nvlist_existsv_bool(const nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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bool nvlist_existsv_number(const nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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bool nvlist_existsv_string(const nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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bool nvlist_existsv_nvlist(const nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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bool nvlist_existsv_descriptor(const nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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bool nvlist_existsv_binary(const nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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#endif
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void nvlist_addf_null(nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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void nvlist_addf_bool(nvlist_t *nvl, bool value, const char *namefmt, ...) __printflike(3, 4);
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void nvlist_addf_number(nvlist_t *nvl, uint64_t value, const char *namefmt, ...) __printflike(3, 4);
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void nvlist_addf_string(nvlist_t *nvl, const char *value, const char *namefmt, ...) __printflike(3, 4);
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void nvlist_addf_nvlist(nvlist_t *nvl, const nvlist_t *value, const char *namefmt, ...) __printflike(3, 4);
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#ifndef _KERNEL
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void nvlist_addf_descriptor(nvlist_t *nvl, int value, const char *namefmt, ...) __printflike(3, 4);
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#endif
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void nvlist_addf_binary(nvlist_t *nvl, const void *value, size_t size, const char *namefmt, ...) __printflike(4, 5);
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#if !defined(_KERNEL) || defined(_VA_LIST_DECLARED)
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void nvlist_addv_null(nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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void nvlist_addv_bool(nvlist_t *nvl, bool value, const char *namefmt, va_list nameap) __printflike(3, 0);
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void nvlist_addv_number(nvlist_t *nvl, uint64_t value, const char *namefmt, va_list nameap) __printflike(3, 0);
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void nvlist_addv_string(nvlist_t *nvl, const char *value, const char *namefmt, va_list nameap) __printflike(3, 0);
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void nvlist_addv_nvlist(nvlist_t *nvl, const nvlist_t *value, const char *namefmt, va_list nameap) __printflike(3, 0);
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#ifndef _KERNEL
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void nvlist_addv_descriptor(nvlist_t *nvl, int value, const char *namefmt, va_list nameap) __printflike(3, 0);
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#endif
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void nvlist_addv_binary(nvlist_t *nvl, const void *value, size_t size, const char *namefmt, va_list nameap) __printflike(4, 0);
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#endif
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void nvlist_movef_string(nvlist_t *nvl, char *value, const char *namefmt, ...) __printflike(3, 4);
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void nvlist_movef_nvlist(nvlist_t *nvl, nvlist_t *value, const char *namefmt, ...) __printflike(3, 4);
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#ifndef _KERNEL
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void nvlist_movef_descriptor(nvlist_t *nvl, int value, const char *namefmt, ...) __printflike(3, 4);
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#endif
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void nvlist_movef_binary(nvlist_t *nvl, void *value, size_t size, const char *namefmt, ...) __printflike(4, 5);
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#if !defined(_KERNEL) || defined(_VA_LIST_DECLARED)
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void nvlist_movev_string(nvlist_t *nvl, char *value, const char *namefmt, va_list nameap) __printflike(3, 0);
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void nvlist_movev_nvlist(nvlist_t *nvl, nvlist_t *value, const char *namefmt, va_list nameap) __printflike(3, 0);
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#ifndef _KERNEL
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void nvlist_movev_descriptor(nvlist_t *nvl, int value, const char *namefmt, va_list nameap) __printflike(3, 0);
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#endif
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void nvlist_movev_binary(nvlist_t *nvl, void *value, size_t size, const char *namefmt, va_list nameap) __printflike(4, 0);
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#endif
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#ifndef _KERNEL
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bool nvlist_getf_bool(const nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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uint64_t nvlist_getf_number(const nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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const char *nvlist_getf_string(const nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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const nvlist_t *nvlist_getf_nvlist(const nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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int nvlist_getf_descriptor(const nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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const void *nvlist_getf_binary(const nvlist_t *nvl, size_t *sizep, const char *namefmt, ...) __printflike(3, 4);
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bool nvlist_getv_bool(const nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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uint64_t nvlist_getv_number(const nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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const char *nvlist_getv_string(const nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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const nvlist_t *nvlist_getv_nvlist(const nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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int nvlist_getv_descriptor(const nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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const void *nvlist_getv_binary(const nvlist_t *nvl, size_t *sizep, const char *namefmt, va_list nameap) __printflike(3, 0);
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bool nvlist_takef_bool(nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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uint64_t nvlist_takef_number(nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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char *nvlist_takef_string(nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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nvlist_t *nvlist_takef_nvlist(nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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int nvlist_takef_descriptor(nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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void *nvlist_takef_binary(nvlist_t *nvl, size_t *sizep, const char *namefmt, ...) __printflike(3, 4);
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bool nvlist_takev_bool(nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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uint64_t nvlist_takev_number(nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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char *nvlist_takev_string(nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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nvlist_t *nvlist_takev_nvlist(nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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int nvlist_takev_descriptor(nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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void *nvlist_takev_binary(nvlist_t *nvl, size_t *sizep, const char *namefmt, va_list nameap) __printflike(3, 0);
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void nvlist_freef(nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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void nvlist_freef_type(nvlist_t *nvl, int type, const char *namefmt, ...) __printflike(3, 4);
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void nvlist_freef_null(nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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void nvlist_freef_bool(nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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void nvlist_freef_number(nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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void nvlist_freef_string(nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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void nvlist_freef_nvlist(nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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void nvlist_freef_descriptor(nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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void nvlist_freef_binary(nvlist_t *nvl, const char *namefmt, ...) __printflike(2, 3);
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void nvlist_freev(nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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void nvlist_freev_type(nvlist_t *nvl, int type, const char *namefmt, va_list nameap) __printflike(3, 0);
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void nvlist_freev_null(nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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void nvlist_freev_bool(nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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void nvlist_freev_number(nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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void nvlist_freev_string(nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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void nvlist_freev_nvlist(nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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void nvlist_freev_descriptor(nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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void nvlist_freev_binary(nvlist_t *nvl, const char *namefmt, va_list nameap) __printflike(2, 0);
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#endif /* _KERNEL */
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__END_DECLS
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#endif /* !_NV_H_ */
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