fs/smbsrv/smb_alloc.c

da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw/*
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw * CDDL HEADER START
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw *
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw * The contents of this file are subject to the terms of the
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw * Common Development and Distribution License (the "License").
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw * You may not use this file except in compliance with the License.
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw *
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw * or http://www.opensolaris.org/os/licensing.
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw * See the License for the specific language governing permissions
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw * and limitations under the License.
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw *
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw * When distributing Covered Code, include this CDDL HEADER in each
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw * If applicable, add the following below this CDDL HEADER, with the
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw * fields enclosed by brackets "[]" replaced with your own identifying
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw * information: Portions Copyright [yyyy] [name of copyright owner]
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw *
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw * CDDL HEADER END
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw */
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw/*
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw */
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw#include <sys/types.h>
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw#include <sys/sunddi.h>
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw#include <sys/kmem.h>
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw#include <sys/sysmacros.h>
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown#include <smbsrv/smb_kproto.h>
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw#include <smbsrv/alloc.h>
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States#define SMB_SMH_MAGIC       0x534D485F  /* 'SMH_' */
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States#define SMB_SMH_VALID(_smh_)    ASSERT((_smh_)->smh_magic == SMB_SMH_MAGIC)
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States#define SMB_MEM2SMH(_mem_)  ((smb_mem_header_t *)(_mem_) - 1)
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statestypedef struct smb_mem_header {
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    uint32_t    smh_magic;
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    size_t      smh_size;
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    smb_request_t   *smh_sr;
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    list_node_t smh_lnd;
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States} smb_mem_header_t;
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statesstatic void *smb_alloc(smb_request_t *, size_t, boolean_t);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statesstatic void smb_free(smb_request_t *, void *, boolean_t);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statesstatic void *smb_realloc(smb_request_t *, void *, size_t, boolean_t);
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States/*
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * Allocate memory.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States */
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statesvoid *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statessmb_mem_alloc(size_t size)
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States{
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    return (smb_alloc(NULL, size, B_FALSE));
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw}
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States/*
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * Allocate memory and zero it out.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States */
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statesvoid *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statessmb_mem_zalloc(size_t size)
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw{
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    return (smb_alloc(NULL, size, B_TRUE));
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw}
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States/*
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * Allocate or resize memory previously allocated.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * The address passed in MUST be considered invalid when this function returns.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States */
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statesvoid *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statessmb_mem_realloc(void *ptr, size_t size)
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw{
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    return (smb_realloc(NULL, ptr, size, B_FALSE));
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw}
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States/*
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * Allocate or resize memory previously allocated. If the new size is greater
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * than the current size, the extra space is zeroed out. If the new size is less
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * then the current size the space truncated is zeroed out.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * The address passed in MUST be considered invalid when this function returns.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States */
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amwvoid *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statessmb_mem_rezalloc(void *ptr, size_t size)
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw{
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    return (smb_realloc(NULL, ptr, size, B_TRUE));
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States}
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States/*
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * Free memory previously allocated with smb_malloc(), smb_zalloc(),
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * smb_remalloc() or smb_rezalloc().
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States */
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statesvoid
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statessmb_mem_free(void *ptr)
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States{
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    smb_free(NULL, ptr, B_FALSE);
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw}
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States/*
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * Free memory previously allocated with smb_mem_malloc(), smb_mem_zalloc(),
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * smb_mem_remalloc() or smb_mem_rezalloc() or smb_mem_strdup(). The memory will
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * be zeroed out before being actually freed.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States */
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amwvoid
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statessmb_mem_zfree(void *ptr)
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw{
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    smb_free(NULL, ptr, B_TRUE);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States}
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States/*
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * Duplicate a string.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States */
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Stateschar *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statessmb_mem_strdup(const char *ptr)
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States{
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    char    *p;
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    size_t  size;
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    size = strlen(ptr) + 1;
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    p = smb_alloc(NULL, size, B_FALSE);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    bcopy(ptr, p, size);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    return (p);
da6c28aaf62fa55f0fdb8004aa40f88f23bf53f0amw}
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown/*
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown * Initialize the list for request-specific temporary storage.
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown */
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brownvoid
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brownsmb_srm_init(smb_request_t *sr)
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown{
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    list_create(&sr->sr_storage, sizeof (smb_mem_header_t),
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        offsetof(smb_mem_header_t, smh_lnd));
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown}
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown/*
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * Free everything on the request-specific temporary storage list and destroy
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * the list.
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown */
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brownvoid
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brownsmb_srm_fini(smb_request_t *sr)
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown{
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    smb_mem_header_t    *smh;
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    while ((smh = list_head(&sr->sr_storage)) != NULL)
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        smb_free(sr, ++smh, B_FALSE);
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown    list_destroy(&sr->sr_storage);
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown}
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown/*
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown * Allocate memory and associate it with the specified request.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * Memory allocated here can only be used for the duration of this request; it
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * will be freed automatically on completion of the request.
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown */
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brownvoid *
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brownsmb_srm_alloc(smb_request_t *sr, size_t size)
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown{
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    return (smb_alloc(sr, size, B_FALSE));
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States}
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States/*
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * Allocate memory, zero it out and associate it with the specified request.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * Memory allocated here can only be used for the duration of this request; it
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * will be freed automatically on completion of the request.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States */
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statesvoid *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statessmb_srm_zalloc(smb_request_t *sr, size_t size)
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States{
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    return (smb_alloc(sr, size, B_TRUE));
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown}
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown/*
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * Allocate or resize memory previously allocated for the specified request.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * The address passed in MUST be considered invalid when this function returns.
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown */
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brownvoid *
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brownsmb_srm_realloc(smb_request_t *sr, void *p, size_t size)
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown{
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    return (smb_realloc(sr, p, size, B_FALSE));
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States}
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States/*
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * Allocate or resize memory previously allocated for the specified request. If
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * the new size is greater than the current size, the extra space is zeroed out.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * If the new size is less then the current size the space truncated is zeroed
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * out.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * The address passed in MUST be considered invalid when this function returns.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States */
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statesvoid *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statessmb_srm_rezalloc(smb_request_t *sr, void *p, size_t size)
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States{
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    return (smb_realloc(sr, p, size, B_TRUE));
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States}
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wrightchar *
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wrightsmb_srm_strdup(smb_request_t *sr, const char *s)
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright{
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright    char    *p;
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright    size_t  size;
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright    size = strlen(s) + 1;
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright    p = smb_srm_alloc(sr, size);
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright    bcopy(s, p, size);
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright    return (p);
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright}
148c5f43199ca0b43fc8e3b643aab11cd66ea327Alan Wright
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States/*
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * Allocate memory.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * sr   If not NULL, request the memory allocated must be associated with.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * size Size of the meory to allocate.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * zero If true the memory allocated will be zeroed out.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States */
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statesstatic void *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statessmb_alloc(smb_request_t *sr, size_t size, boolean_t zero)
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States{
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    smb_mem_header_t    *smh;
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    if (zero) {
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        smh = kmem_zalloc(size + sizeof (smb_mem_header_t), KM_SLEEP);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    } else {
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        smh = kmem_alloc(size + sizeof (smb_mem_header_t), KM_SLEEP);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        smh->smh_sr = NULL;
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        bzero(&smh->smh_lnd, sizeof (smh->smh_lnd));
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    }
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    smh->smh_sr = sr;
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    smh->smh_size = size;
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    smh->smh_magic = SMB_SMH_MAGIC;
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    if (sr != NULL) {
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        SMB_REQ_VALID(sr);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        list_insert_tail(&sr->sr_storage, smh);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    }
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    return (++smh);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States}
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States/*
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * Free memory.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * sr   If not NULL, request the memory to free is associated with.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * ptr  Memory address
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * zero If true the memory is zeroed out before being freed.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States */
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statesstatic void
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statessmb_free(smb_request_t *sr, void *ptr, boolean_t zero)
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States{
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    smb_mem_header_t    *smh;
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    if (ptr != NULL) {
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        smh = SMB_MEM2SMH(ptr);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        SMB_SMH_VALID(smh);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        ASSERT(sr == smh->smh_sr);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        if (sr != NULL) {
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States            SMB_REQ_VALID(sr);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States            list_remove(&sr->sr_storage, smh);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        }
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        if (zero)
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States            bzero(ptr, smh->smh_size);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        smh->smh_magic = 0;
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        kmem_free(smh, smh->smh_size + sizeof (smb_mem_header_t));
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    }
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States}
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States/*
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * Allocate or resize memory previously allocated.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * sr   If not NULL, request the memory is associated with.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * ptr  Memory address
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * size New size
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States * zero If true zero out the extra space or the truncated space.
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States */
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statesstatic void *
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United Statessmb_realloc(smb_request_t *sr, void *ptr, size_t size, boolean_t zero)
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States{
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    smb_mem_header_t    *smh;
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    void            *new_ptr;
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    if (ptr == NULL)
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        return (smb_alloc(sr, size, zero));
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    smh = SMB_MEM2SMH(ptr);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    SMB_SMH_VALID(smh);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    ASSERT(sr == smh->smh_sr);
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    if (size == 0) {
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        smb_free(sr, ptr, zero);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        return (NULL);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    }
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    if (smh->smh_size >= size) {
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        if ((zero) & (smh->smh_size > size))
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States            bzero((caddr_t)ptr + size, smh->smh_size - size);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        return (ptr);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    }
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    new_ptr = smb_alloc(sr, size, B_FALSE);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    bcopy(ptr, new_ptr, smh->smh_size);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    if (zero)
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States        bzero((caddr_t)new_ptr + smh->smh_size, size - smh->smh_size);
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    smb_free(sr, ptr, zero);
9fb67ea305c66b6a297583b9b0db6796b0dfe497afshin salek ardakani - Sun Microsystems - Irvine United States    return (new_ptr);
bbf6f00c25b6a2bed23c35eac6d62998ecdb338cJordan Brown}