1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 /* Copyright (c) 1990 Mentat Inc. */ 26 27 #ifndef _INET_MI_H 28 #define _INET_MI_H 29 30 #ifdef __cplusplus 31 extern "C" { 32 #endif 33 34 #ifdef _KERNEL 35 36 #include <sys/types.h> 37 #include <sys/vmem.h> 38 #include <sys/varargs.h> 39 #include <netinet/in.h> 40 41 #define MI_MIN_DEV INET_MIN_DEV /* minimum minor device number */ 42 #define MI_COPY_IN 1 43 #define MI_COPY_OUT 2 44 #define MI_COPY_DIRECTION(mp) (*(int *)&(mp)->b_cont->b_next) 45 #define MI_COPY_COUNT(mp) (*(int *)&(mp)->b_cont->b_prev) 46 #define MI_COPY_CASE(dir, cnt) (((cnt)<<2)|dir) 47 #define MI_COPY_STATE(mp) MI_COPY_CASE(MI_COPY_DIRECTION(mp), \ 48 MI_COPY_COUNT(mp)) 49 50 /* 51 * Double linked list of type MI_O with a mi_head_t as the head. 52 * Used for mi_open_comm etc. 53 */ 54 typedef struct mi_o_s { 55 struct mi_o_s *mi_o_next; 56 struct mi_o_s *mi_o_prev; 57 boolean_t mi_o_isdev; /* Is this a device instance */ 58 dev_t mi_o_dev; 59 } MI_O, *MI_OP; 60 61 /* 62 * List head for MI_O doubly linked list. 63 * The list contains unsorted driver, module and detached instances. 64 * 65 * Minor numbers are allocated from mh_arena which initially contains 66 * [MI_MIN_DEV, mh_maxminor] numbers. When this arena is fully allocated, it is 67 * extended to MAXMIN32. 68 * 69 * The module_dev is used to give almost unique numbers to module instances. 70 * This is only needed for mi_strlog which uses the mi_o_dev field when 71 * logging messages. 72 */ 73 74 typedef struct mi_head_s { 75 struct mi_o_s mh_o; /* Contains head of doubly linked list */ 76 vmem_t *mh_arena; /* Minor number arena */ 77 int mh_module_dev; /* Wraparound number for use when MODOPEN */ 78 minor_t mh_maxminor; /* max minor number in the arena */ 79 } mi_head_t; 80 81 extern void *mi_alloc(size_t size, uint_t pri); 82 extern void *mi_alloc_sleep(size_t size, uint_t pri); 83 extern void mi_free(void *ptr); 84 85 extern int mi_close_comm(void **mi_head, queue_t *q); 86 extern void mi_close_free(IDP ptr); 87 extern void mi_close_unlink(void **mi_head, IDP ptr); 88 89 extern void mi_copyin(queue_t *q, MBLKP mp, char *uaddr, size_t len); 90 extern void mi_copyin_n(queue_t *q, MBLKP mp, size_t offset, size_t len); 91 extern void mi_copyout(queue_t *q, MBLKP mp); 92 extern MBLKP mi_copyout_alloc(queue_t *q, MBLKP mp, char *uaddr, size_t len, 93 boolean_t free_on_error); 94 extern void mi_copy_done(queue_t *q, MBLKP mp, int err); 95 extern int mi_copy_state(queue_t *q, MBLKP mp, MBLKP *mpp); 96 97 /*PRINTFLIKE2*/ 98 extern int mi_mpprintf(MBLKP mp, char *fmt, ...) 99 __KPRINTFLIKE(2); 100 /*PRINTFLIKE2*/ 101 extern int mi_mpprintf_nr(MBLKP mp, char *fmt, ...) 102 __KPRINTFLIKE(2); 103 extern int mi_mpprintf_putc(char *cookie, int ch); 104 105 extern IDP mi_first_ptr(void **mi_head); 106 extern IDP mi_first_dev_ptr(void **mi_head); 107 extern IDP mi_next_ptr(void **mi_head, IDP ptr); 108 extern IDP mi_next_dev_ptr(void **mi_head, IDP ptr); 109 110 extern IDP mi_open_alloc(size_t size); 111 extern IDP mi_open_alloc_sleep(size_t size); 112 extern int mi_open_comm(void **mi_head, size_t size, queue_t *q, 113 dev_t *devp, int flag, int sflag, cred_t *credp); 114 extern int mi_open_link(void **mi_head, IDP ptr, dev_t *devp, int flag, 115 int sflag, cred_t *credp); 116 117 extern uint8_t *mi_offset_param(mblk_t *mp, size_t offset, size_t len); 118 extern uint8_t *mi_offset_paramc(mblk_t *mp, size_t offset, size_t len); 119 120 /*PRINTFLIKE2*/ 121 extern int mi_sprintf(char *buf, char *fmt, ...) 122 __KPRINTFLIKE(2); 123 extern int mi_sprintf_putc(char *cookie, int ch); 124 125 extern int mi_strcmp(const char *cp1, const char *cp2); 126 extern size_t mi_strlen(const char *str); 127 128 /*PRINTFLIKE4*/ 129 extern int mi_strlog(queue_t *q, char level, ushort_t flags, 130 char *fmt, ...) __KPRINTFLIKE(4); 131 #pragma rarely_called(mi_strlog) 132 133 extern long mi_strtol(const char *str, char **ptr, int base); 134 135 extern void mi_timer(queue_t *q, MBLKP mp, clock_t tim); 136 extern MBLKP mi_timer_alloc(size_t size); 137 extern void mi_timer_free(MBLKP mp); 138 extern void mi_timer_move(queue_t *, mblk_t *); 139 extern void mi_timer_stop(mblk_t *); 140 extern boolean_t mi_timer_valid(MBLKP mp); 141 142 extern MBLKP mi_tpi_conn_con(MBLKP trailer_mp, char *src, 143 t_scalar_t src_length, char *opt, t_scalar_t opt_length); 144 extern MBLKP mi_tpi_conn_ind(MBLKP trailer_mp, char *src, 145 t_scalar_t src_length, char *opt, t_scalar_t opt_length, 146 t_scalar_t seqnum); 147 extern MBLKP mi_tpi_extconn_ind(MBLKP trailer_mp, char *src, 148 t_scalar_t src_length, char *opt, t_scalar_t opt_length, 149 char *dst, t_scalar_t dst_length, t_scalar_t seqnum); 150 extern MBLKP mi_tpi_discon_ind(MBLKP trailer_mp, t_scalar_t reason, 151 t_scalar_t seqnum); 152 extern MBLKP mi_tpi_err_ack_alloc(MBLKP mp, t_scalar_t tlierr, int unixerr); 153 extern MBLKP mi_tpi_ok_ack_alloc(MBLKP mp); 154 extern MBLKP mi_tpi_ok_ack_alloc_extra(MBLKP mp, int extra); 155 extern MBLKP mi_tpi_ordrel_ind(void); 156 extern MBLKP mi_tpi_uderror_ind(char *dest, t_scalar_t dest_length, 157 char *opt, t_scalar_t opt_length, t_scalar_t error); 158 159 extern IDP mi_zalloc(size_t size); 160 extern IDP mi_zalloc_sleep(size_t size); 161 162 #endif /* _KERNEL */ 163 164 #ifdef __cplusplus 165 } 166 #endif 167 168 #endif /* _INET_MI_H */ 169