/* * AppArmor security module * * This file contains basic common functions used in AppArmor * * Copyright (C) 1998-2008 Novell/SUSE * Copyright 2009-2010 Canonical Ltd. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation, version 2 of the * License. */ #include #include #include #include #include "include/audit.h" #include "include/apparmor.h" /** * aa_split_fqname - split a fqname into a profile and namespace name * @fqname: a full qualified name in namespace profile format (NOT NULL) * @ns_name: pointer to portion of the string containing the ns name (NOT NULL) * * Returns: profile name or NULL if one is not specified * * Split a namespace name from a profile name (see policy.c for naming * description). If a portion of the name is missing it returns NULL for * that portion. * * NOTE: may modify the @fqname string. The pointers returned point * into the @fqname string. */ char *aa_split_fqname(char *fqname, char **ns_name) { char *name = strim(fqname); *ns_name = NULL; if (name[0] == ':') { char *split = strchr(&name[1], ':'); *ns_name = skip_spaces(&name[1]); if (split) { /* overwrite ':' with \0 */ *split++ = 0; if (strncmp(split, "//", 2) == 0) split += 2; name = skip_spaces(split); } else /* a ns name without a following profile is allowed */ name = NULL; } if (name && *name == 0) name = NULL; return name; } /** * aa_info_message - log a none profile related status message * @str: message to log */ void aa_info_message(const char *str) { if (audit_enabled) { struct common_audit_data sa; struct apparmor_audit_data aad = {0,}; sa.type = LSM_AUDIT_DATA_NONE; sa.aad = &aad; aad.info = str; aa_audit_msg(AUDIT_APPARMOR_STATUS, &sa, NULL); } printk(KERN_INFO "AppArmor: %s\n", str); } /** * __aa_kvmalloc - do allocation preferring kmalloc but falling back to vmalloc * @size: how many bytes of memory are required * @flags: the type of memory to allocate (see kmalloc). * * Return: allocated buffer or NULL if failed * * It is possible that policy being loaded from the user is larger than * what can be allocated by kmalloc, in those cases fall back to vmalloc. */ void *__aa_kvmalloc(size_t size, gfp_t flags) { void *buffer = NULL; if (size == 0) return NULL; /* do not attempt kmalloc if we need more than 16 pages at once */ if (size <= (16*PAGE_SIZE)) buffer = kmalloc(size, flags | GFP_NOIO | __GFP_NOWARN); if (!buffer) { if (flags & __GFP_ZERO) buffer = vzalloc(size); else buffer = vmalloc(size); } return buffer; } ' value=''/>

path: root/net/mac80211/debugfs_key.c

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