1 /*- 2 * Copyright (c) 2006-2007, Cisco Systems, Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * a) Redistributions of source code must retain the above copyright notice, 8 * this list of conditions and the following disclaimer. 9 * 10 * b) Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in 12 * the documentation and/or other materials provided with the distribution. 13 * 14 * c) Neither the name of Cisco Systems, Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived 16 * from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 20 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 28 * THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 #include <sys/cdefs.h> 31 __FBSDID("$FreeBSD$"); 32 #ifndef __sctp_os_bsd_h__ 33 #define __sctp_os_bsd_h__ 34 /* 35 * includes 36 */ 37 #include "opt_ipsec.h" 38 #include "opt_compat.h" 39 #include "opt_inet6.h" 40 #include "opt_inet.h" 41 #include "opt_sctp.h" 42 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/malloc.h> 45 #include <sys/kernel.h> 46 #include <sys/sysctl.h> 47 #include <sys/mbuf.h> 48 #include <sys/protosw.h> 49 #include <sys/socket.h> 50 #include <sys/socketvar.h> 51 #include <sys/sysctl.h> 52 #include <sys/resourcevar.h> 53 #include <sys/uio.h> 54 #include <sys/priv.h> 55 #include <sys/random.h> 56 #include <sys/limits.h> 57 #include <sys/queue.h> 58 #include <machine/cpu.h> 59 60 #include <net/if.h> 61 #include <net/if_types.h> 62 #include <net/if_var.h> 63 #include <net/route.h> 64 65 #include <netinet/in.h> 66 #include <netinet/in_systm.h> 67 #include <netinet/ip.h> 68 #include <netinet/in_pcb.h> 69 #include <netinet/in_var.h> 70 #include <netinet/ip_var.h> 71 #include <netinet/ip_icmp.h> 72 #include <netinet/icmp_var.h> 73 74 75 #ifdef IPSEC 76 #include <netinet6/ipsec.h> 77 #include <netkey/key.h> 78 #endif /* IPSEC */ 79 80 #ifdef INET6 81 #include <sys/domain.h> 82 #ifdef IPSEC 83 #include <netinet6/ipsec6.h> 84 #endif 85 #include <netinet/ip6.h> 86 #include <netinet6/ip6_var.h> 87 #include <netinet6/in6_pcb.h> 88 #include <netinet/icmp6.h> 89 #include <netinet6/ip6protosw.h> 90 #include <netinet6/nd6.h> 91 #include <netinet6/scope6_var.h> 92 #endif /* INET6 */ 93 94 #include <netinet/ip_options.h> 95 96 97 #ifndef in6pcb 98 #define in6pcb inpcb 99 #endif 100 101 102 103 /* 104 * 105 */ 106 #define USER_ADDR_NULL (NULL) /* FIX ME: temp */ 107 108 /* 109 * general memory allocation 110 */ 111 #define SCTP_MALLOC(var, type, size, name) \ 112 do { \ 113 MALLOC(var, type, size, M_PCB, M_NOWAIT); \ 114 } while (0) 115 116 #define SCTP_FREE(var) FREE(var, M_PCB) 117 118 #define SCTP_MALLOC_SONAME(var, type, size) \ 119 do { \ 120 MALLOC(var, type, size, M_SONAME, M_WAITOK | M_ZERO); \ 121 } while (0) 122 123 #define SCTP_FREE_SONAME(var) FREE(var, M_SONAME) 124 125 /* 126 * zone allocation functions 127 */ 128 #include <vm/uma.h> 129 /* SCTP_ZONE_INIT: initialize the zone */ 130 typedef struct uma_zone *sctp_zone_t; 131 132 #define UMA_ZFLAG_FULL 0x0020 133 #define SCTP_ZONE_INIT(zone, name, size, number) { \ 134 zone = uma_zcreate(name, size, NULL, NULL, NULL, NULL, UMA_ALIGN_PTR,\ 135 UMA_ZFLAG_FULL); \ 136 uma_zone_set_max(zone, number); \ 137 } 138 139 /* SCTP_ZONE_GET: allocate element from the zone */ 140 #define SCTP_ZONE_GET(zone) \ 141 uma_zalloc(zone, M_NOWAIT); 142 143 /* SCTP_ZONE_FREE: free element from the zone */ 144 #define SCTP_ZONE_FREE(zone, element) \ 145 uma_zfree(zone, element); 146 #define SCTP_HASH_INIT(size, hashmark) hashinit_flags(size, M_PCB, hashmark, HASH_NOWAIT) 147 #define SCTP_HASH_FREE(table, hashmark) hashdestroy(table, M_PCB, hashmark) 148 149 #define SCTP_M_COPYM m_copym 150 151 /* 152 * timers 153 */ 154 #include <sys/callout.h> 155 typedef struct callout sctp_os_timer_t; 156 157 #define SCTP_OS_TIMER_INIT(tmr) callout_init(tmr, 1) 158 #define SCTP_OS_TIMER_START callout_reset 159 #define SCTP_OS_TIMER_STOP callout_stop 160 #define SCTP_OS_TIMER_STOP_DRAIN callout_drain 161 #define SCTP_OS_TIMER_PENDING callout_pending 162 #define SCTP_OS_TIMER_ACTIVE callout_active 163 #define SCTP_OS_TIMER_DEACTIVATE callout_deactivate 164 165 /* 166 * Functions 167 */ 168 #define SCTP_READ_RANDOM(buf, len) read_random(buf, len) 169 170 /* Mbuf manipulation and access macros */ 171 #define SCTP_BUF_LEN(m) (m->m_len) 172 #define SCTP_BUF_NEXT(m) (m->m_next) 173 #define SCTP_BUF_NEXT_PKT(m) (m->m_nextpkt) 174 #define SCTP_BUF_RESV_UF(m, size) m->m_data += size 175 #define SCTP_BUF_AT(m, size) m->m_data + size 176 #define SCTP_BUF_IS_EXTENDED(m) (m->m_flags & M_EXT) 177 #define SCTP_BUF_EXTEND_SIZE(m) (m->m_ext.ext_size) 178 #define SCTP_BUF_TYPE(m) (m->m_type) 179 #define SCTP_BUF_RECVIF(m) (m->m_pkthdr.rcvif) 180 #define SCTP_BUF_PREPEND M_PREPEND 181 /*************************/ 182 /* These are for logging */ 183 /*************************/ 184 /* return the base ext data pointer */ 185 #define SCTP_BUF_EXTEND_BASE(m) (m->m_ext.ext_buf) 186 /* return the refcnt of the data pointer */ 187 #define SCTP_BUF_EXTEND_REFCNT(m) (*m->m_ext.ref_cnt) 188 /* return any buffer related flags, this is 189 * used beyond logging for apple only. 190 */ 191 #define SCTP_BUF_GET_FLAGS(m) (m->m_flags) 192 193 /* For BSD this just accesses the M_PKTHDR length 194 * so it operates on an mbuf with hdr flag. Other 195 * O/S's may have seperate packet header and mbuf 196 * chain pointers.. thus the macro. 197 */ 198 #define SCTP_HEADER_TO_CHAIN(m) (m) 199 #define SCTP_HEADER_LEN(m) (m->m_pkthdr.len) 200 #define SCTP_GET_HEADER_FOR_OUTPUT(len) sctp_get_mbuf_for_msg(len, 1, M_DONTWAIT, 1, MT_DATA) 201 202 /* Attach the chain of data into the sendable packet. */ 203 #define SCTP_ATTACH_CHAIN(pak, m, packet_length) do { \ 204 pak->m_next = m; \ 205 pak->m_pkthdr.len = packet_length; \ 206 } while(0) 207 208 /* Other m_pkthdr type things */ 209 #define SCTP_IS_IT_BROADCAST(dst, m) in_broadcast(dst, m->m_pkthdr.rcvif) 210 #define SCTP_IS_IT_LOOPBACK(m) ((m->m_pkthdr.rcvif == NULL) ||(m->m_pkthdr.rcvif->if_type == IFT_LOOP)) 211 212 213 /* This converts any input packet header 214 * into the chain of data holders, for BSD 215 * its a NOP. 216 */ 217 #define SCTP_PAK_TO_BUF(i_pak) (i_pak) 218 219 /* Macro's for getting length from V6/V4 header */ 220 #define SCTP_GET_IPV4_LENGTH(iph) (iph->ip_len) 221 #define SCTP_GET_IPV6_LENGTH(ip6) (ntohs(ip6->ip6_plen)) 222 223 /* is the endpoint v6only? */ 224 #define SCTP_IPV6_V6ONLY(inp) (((struct inpcb *)inp)->inp_flags & IN6P_IPV6_V6ONLY) 225 226 227 #endif 228