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contrib/dhcpcd/src/dhcp-common.h
- This file was added.
| Property | Old Value | New Value |
|---|---|---|
| svn:eol-style | null | native \ No newline at end of property |
| svn:keywords | null | FreeBSD=%H \ No newline at end of property |
| svn:mime-type | null | text/plain \ No newline at end of property |
| /* SPDX-License-Identifier: BSD-2-Clause */ | |||||
| /* | |||||
| * dhcpcd - DHCP client daemon | |||||
| * Copyright (c) 2006-2019 Roy Marples <roy@marples.name> | |||||
| * 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. | |||||
| * 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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. | |||||
| */ | |||||
| #ifndef DHCPCOMMON_H | |||||
| #define DHCPCOMMON_H | |||||
| #include <arpa/inet.h> | |||||
| #include <netinet/in.h> | |||||
| #include <stdint.h> | |||||
| #include <arpa/nameser.h> /* after normal includes for sunos */ | |||||
| #include "common.h" | |||||
| #include "dhcpcd.h" | |||||
| /* Support very old arpa/nameser.h as found in OpenBSD */ | |||||
| #ifndef NS_MAXDNAME | |||||
| #define NS_MAXCDNAME MAXCDNAME | |||||
| #define NS_MAXDNAME MAXDNAME | |||||
| #define NS_MAXLABEL MAXLABEL | |||||
| #endif | |||||
| /* Max MTU - defines dhcp option length */ | |||||
| #define IP_UDP_SIZE 28 | |||||
| #define MTU_MAX 1500 - IP_UDP_SIZE | |||||
| #define MTU_MIN 576 + IP_UDP_SIZE | |||||
| #define OT_REQUEST (1 << 0) | |||||
| #define OT_UINT8 (1 << 1) | |||||
| #define OT_INT8 (1 << 2) | |||||
| #define OT_UINT16 (1 << 3) | |||||
| #define OT_INT16 (1 << 4) | |||||
| #define OT_UINT32 (1 << 5) | |||||
| #define OT_INT32 (1 << 6) | |||||
| #define OT_ADDRIPV4 (1 << 7) | |||||
| #define OT_STRING (1 << 8) | |||||
| #define OT_ARRAY (1 << 9) | |||||
| #define OT_RFC3361 (1 << 10) | |||||
| #define OT_RFC1035 (1 << 11) | |||||
| #define OT_RFC3442 (1 << 12) | |||||
| #define OT_OPTIONAL (1 << 13) | |||||
| #define OT_ADDRIPV6 (1 << 14) | |||||
| #define OT_BINHEX (1 << 15) | |||||
| #define OT_FLAG (1 << 16) | |||||
| #define OT_NOREQ (1 << 17) | |||||
| #define OT_EMBED (1 << 18) | |||||
| #define OT_ENCAP (1 << 19) | |||||
| #define OT_INDEX (1 << 20) | |||||
| #define OT_OPTION (1 << 21) | |||||
| #define OT_DOMAIN (1 << 22) | |||||
| #define OT_ASCII (1 << 23) | |||||
| #define OT_RAW (1 << 24) | |||||
| #define OT_ESCSTRING (1 << 25) | |||||
| #define OT_ESCFILE (1 << 26) | |||||
| #define OT_BITFLAG (1 << 27) | |||||
| #define OT_RESERVED (1 << 28) | |||||
| #define DHC_REQOPT(o, r, n) \ | |||||
| (!((o)->type & OT_NOREQ) && \ | |||||
| ((o)->type & OT_REQUEST || has_option_mask((r), (o)->option)) && \ | |||||
| !has_option_mask((n), (o)->option)) | |||||
| struct dhcp_opt { | |||||
| uint32_t option; /* Also used for IANA Enterpise Number */ | |||||
| int type; | |||||
| size_t len; | |||||
| char *var; | |||||
| int index; /* Index counter for many instances of the same option */ | |||||
| char bitflags[8]; | |||||
| /* Embedded options. | |||||
| * The option code is irrelevant here. */ | |||||
| struct dhcp_opt *embopts; | |||||
| size_t embopts_len; | |||||
| /* Encapsulated options */ | |||||
| struct dhcp_opt *encopts; | |||||
| size_t encopts_len; | |||||
| }; | |||||
| const char *dhcp_get_hostname(char *, size_t, const struct if_options *); | |||||
| struct dhcp_opt *vivso_find(uint32_t, const void *); | |||||
| ssize_t dhcp_vendor(char *, size_t); | |||||
| void dhcp_print_option_encoding(const struct dhcp_opt *opt, int cols); | |||||
| #define add_option_mask(var, val) \ | |||||
| ((var)[(val) >> 3] = (uint8_t)((var)[(val) >> 3] | 1 << ((val) & 7))) | |||||
| #define del_option_mask(var, val) \ | |||||
| ((var)[(val) >> 3] = (uint8_t)((var)[(val) >> 3] & ~(1 << ((val) & 7)))) | |||||
| #define has_option_mask(var, val) \ | |||||
| ((var)[(val) >> 3] & (uint8_t)(1 << ((val) & 7))) | |||||
| int make_option_mask(const struct dhcp_opt *, size_t, | |||||
| const struct dhcp_opt *, size_t, | |||||
| uint8_t *, const char *, int); | |||||
| size_t encode_rfc1035(const char *src, uint8_t *dst); | |||||
| ssize_t decode_rfc1035(char *, size_t, const uint8_t *, size_t); | |||||
| ssize_t print_string(char *, size_t, int, const uint8_t *, size_t); | |||||
| int dhcp_set_leasefile(char *, size_t, int, const struct interface *); | |||||
| void dhcp_envoption(struct dhcpcd_ctx *, | |||||
| FILE *, const char *, const char *, struct dhcp_opt *, | |||||
| const uint8_t *(*dgetopt)(struct dhcpcd_ctx *, | |||||
| size_t *, unsigned int *, size_t *, | |||||
| const uint8_t *, size_t, struct dhcp_opt **), | |||||
| const uint8_t *od, size_t ol); | |||||
| void dhcp_zero_index(struct dhcp_opt *); | |||||
| size_t dhcp_read_lease_fd(int, void **); | |||||
| #endif | |||||