X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/2d21ac55c334faf3a56e5634905ed6987fc787d4..c18c124eaa464aaaa5549e99e5a70fc9cbb50944:/bsd/kern/makesyscalls.sh?ds=sidebyside

diff --git a/bsd/kern/makesyscalls.sh b/bsd/kern/makesyscalls.sh
index a6f88584d..13d56f58a 100755
--- a/bsd/kern/makesyscalls.sh
+++ b/bsd/kern/makesyscalls.sh
@@ -2,7 +2,7 @@
 #	@(#)makesyscalls.sh	8.1 (Berkeley) 6/10/93
 # $FreeBSD: src/sys/kern/makesyscalls.sh,v 1.60 2003/04/01 01:12:24 jeff Exp $
 #
-# Copyright (c) 2004-2007 Apple Inc. All rights reserved.
+# Copyright (c) 2004-2008 Apple Inc. All rights reserved.
 #
 # @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 # 
@@ -26,13 +26,23 @@
 
 set -e
 
+input_file="" # first argument
+
+# output type:
+output_syscallnamesfile=0
+output_sysprotofile=0
+output_syshdrfile=0
+output_syscalltablefile=0
+output_auditevfile=0
+
 # output files:
 syscallnamesfile="syscalls.c"
-sysprotofile="../sys/sysproto.h"
+sysprotofile="sysproto.h"
 sysproto_h=_SYS_SYSPROTO_H_
-syshdrfile="../sys/syscall.h"
+syshdrfile="syscall.h"
 syscall_h=_SYS_SYSCALL_H_
 syscalltablefile="init_sysent.c"
+auditevfile="audit_kevents.c"
 syscallprefix="SYS_"
 switchname="sysent"
 namesname="syscallnames"
@@ -45,21 +55,55 @@ sysarg="sysarg.switch.$$"
 sysprotoend="sysprotoend.$$"
 syscallnamestempfile="syscallnamesfile.$$"
 syshdrtempfile="syshdrtempfile.$$"
+audittempfile="audittempfile.$$"
 
-trap "rm $syslegal $sysent $sysinc $sysarg $sysprotoend $syscallnamestempfile $syshdrtempfile" 0
+trap "rm $syslegal $sysent $sysinc $sysarg $sysprotoend $syscallnamestempfile $syshdrtempfile $audittempfile" 0
 
-touch $syslegal $sysent $sysinc $sysarg $sysprotoend $syscallnamestempfile $syshdrtempfile
+touch $syslegal $sysent $sysinc $sysarg $sysprotoend $syscallnamestempfile $syshdrtempfile $audittempfile
 
 case $# in
-    0)	echo "usage: $0 input-file <config-file>" 1>&2
+    0)
+	echo "usage: $0 input-file [<names|proto|header|table|audit> [<config-file>]]" 1>&2
 	exit 1
 	;;
 esac
 
-if [ -n "$2" -a -f "$2" ]; then
-	. $2
+input_file="$1"
+shift
+
+if [ -n "$1" ]; then
+    case $1 in
+	names)
+	    output_syscallnamesfile=1
+	    ;;
+	proto)
+	    output_sysprotofile=1
+	    ;;
+	header)
+	    output_syshdrfile=1
+	    ;;
+	table)
+	    output_syscalltablefile=1
+	    ;;
+	audit)
+	    output_auditevfile=1
+	    ;;
+    esac
+    shift;
+else
+    output_syscallnamesfile=1
+    output_sysprotofile=1
+    output_syshdrfile=1
+    output_syscalltablefile=1
+    output_auditevfile=1
+fi
+
+if [ -n "$1" -a -f "$1" ]; then
+	. $1
 fi
 
+
+
 sed -e '
 s/\$//g
 :join
@@ -72,7 +116,7 @@ s/\$//g
 2,${
 	/^#/!s/\([{}()*,;]\)/ \1 /g
 }
-' < $1 | awk "
+' < "$input_file" | awk "
 	BEGIN {
 		syslegal = \"$syslegal\"
 		sysprotofile = \"$sysprotofile\"
@@ -87,14 +131,15 @@ s/\$//g
 		syscallnamestempfile = \"$syscallnamestempfile\"
 		syshdrfile = \"$syshdrfile\"
 		syshdrtempfile = \"$syshdrtempfile\"
+		audittempfile = \"$audittempfile\"
 		syscallprefix = \"$syscallprefix\"
 		switchname = \"$switchname\"
 		namesname = \"$namesname\"
-		infile = \"$1\"
+		infile = \"$input_file\"
 		"'
 
 		printf "/*\n" > syslegal
-		printf " * Copyright (c) 2004-2007 Apple Inc. All rights reserved.\n" > syslegal
+		printf " * Copyright (c) 2004-2008 Apple Inc. All rights reserved.\n" > syslegal
 		printf " * \n" > syslegal
 		printf " * @APPLE_OSREFERENCE_LICENSE_HEADER_START@\n" > syslegal
 		printf " * \n" > syslegal
@@ -127,7 +172,7 @@ s/\$//g
 	}
 	NR == 1 {
 		printf "\n/* The casts are bogus but will do for now. */\n" > sysent
-		printf "__private_extern__ struct sysent %s[] = {\n",switchname > sysent
+		printf "__private_extern__ const struct sysent %s[] = {\n",switchname > sysent
 
 		printf "#ifndef %s\n", sysproto_h > sysarg
 		printf "#define\t%s\n\n", sysproto_h > sysarg
@@ -145,12 +190,17 @@ s/\$//g
 		printf "#include <mach/shared_region.h>\n" > sysarg
 		printf "\n#ifdef KERNEL\n" > sysarg
 		printf "#ifdef __APPLE_API_PRIVATE\n" > sysarg
-		printf "#ifndef __arm__\n" > sysarg
+		printf "/*\n" > sysarg
+		printf " * The kernel may support multiple userspace ABIs, and must use\n" > sysarg
+		printf " * argument structures with elements large enough for any of them.\n" > sysarg
+		printf "*/\n" > sysarg
+		printf "\n" > sysarg
+		printf "#if CONFIG_REQUIRES_U32_MUNGING\n" > sysarg
 		printf "#define\tPAD_(t)\t(sizeof(uint64_t) <= sizeof(t) \\\n " > sysarg
 		printf "\t\t? 0 : sizeof(uint64_t) - sizeof(t))\n" > sysarg
 		printf "#else\n" > sysarg
-		printf "#define\tPAD_(t)\t(sizeof(register_t) <= sizeof(t) \\\n" > sysarg
-		printf " 		? 0 : sizeof(register_t) - sizeof(t))\n" > sysarg
+		printf "#define\tPAD_(t)\t(sizeof(uint32_t) <= sizeof(t) \\\n" > sysarg
+		printf " 		? 0 : sizeof(uint32_t) - sizeof(t))\n" > sysarg
 		printf "#endif\n" > sysarg
 		printf "#if BYTE_ORDER == LITTLE_ENDIAN\n"> sysarg
 		printf "#define\tPADL_(t)\t0\n" > sysarg
@@ -160,71 +210,18 @@ s/\$//g
 		printf "#define\tPADR_(t)\t0\n" > sysarg
 		printf "#endif\n" > sysarg
 		printf "\n__BEGIN_DECLS\n" > sysarg
-		printf "#ifndef __MUNGE_ONCE\n" > sysarg
-		printf "#define __MUNGE_ONCE\n" > sysarg
-		printf "#ifndef __arm__\n" > sysarg
-		printf "void munge_w(const void *, void *);  \n" > sysarg
-		printf "void munge_ww(const void *, void *);  \n" > sysarg
-		printf "void munge_www(const void *, void *);  \n" > sysarg
-		printf "void munge_wwww(const void *, void *);  \n" > sysarg
-		printf "void munge_wwwww(const void *, void *);  \n" > sysarg
-		printf "void munge_wwwwww(const void *, void *);  \n" > sysarg
-		printf "void munge_wwwwwww(const void *, void *);  \n" > sysarg
-		printf "void munge_wwwwwwww(const void *, void *);  \n" > sysarg
-		printf "void munge_wl(const void *, void *);  \n" > sysarg
-		printf "void munge_wlw(const void *, void *);  \n" > sysarg
-		printf "void munge_wwwl(const void *, void *);  \n" > sysarg
-		printf "void munge_wwwlww(const void *, void *);  \n" > sysarg
-		printf "void munge_wwlwww(const void *, void *);  \n" > sysarg
-		printf "void munge_wwwwl(const void *, void *);  \n" > sysarg
-		printf "void munge_wwwwwl(const void *, void *);  \n" > sysarg
-		printf "void munge_wsw(const void *, void *);  \n" > sysarg
-		printf "void munge_wws(const void *, void *);  \n" > sysarg
-		printf "void munge_wwwsw(const void *, void *);  \n" > sysarg
-		printf "#else \n" > sysarg
-		printf "#define munge_w  NULL \n" > sysarg
-		printf "#define munge_ww  NULL \n" > sysarg
-		printf "#define munge_www  NULL \n" > sysarg
-		printf "#define munge_wwww  NULL \n" > sysarg
-		printf "#define munge_wwwww  NULL \n" > sysarg
-		printf "#define munge_wwwwww  NULL \n" > sysarg
-		printf "#define munge_wwwwwww  NULL \n" > sysarg
-		printf "#define munge_wwwwwwww  NULL \n" > sysarg
-		printf "#define munge_wl  NULL \n" > sysarg
-		printf "#define munge_wlw  NULL \n" > sysarg
-		printf "#define munge_wwwl  NULL \n" > sysarg
-		printf "#define munge_wwwlww  NULL\n" > sysarg
-		printf "#define munge_wwlwww  NULL \n" > sysarg
-		printf "#define munge_wwwwl  NULL \n" > sysarg
-		printf "#define munge_wwwwwl  NULL \n" > sysarg
-		printf "#define munge_wsw  NULL \n" > sysarg
-		printf "#define munge_wws  NULL \n" > sysarg
-		printf "#define munge_wwwsw  NULL \n" > sysarg
-		printf "#endif // ! __arm__\n" > sysarg
-		printf "#ifdef __ppc__\n" > sysarg
-		printf "void munge_d(const void *, void *);  \n" > sysarg
-		printf "void munge_dd(const void *, void *);  \n" > sysarg
-		printf "void munge_ddd(const void *, void *);  \n" > sysarg
-		printf "void munge_dddd(const void *, void *);  \n" > sysarg
-		printf "void munge_ddddd(const void *, void *);  \n" > sysarg
-		printf "void munge_dddddd(const void *, void *);  \n" > sysarg
-		printf "void munge_ddddddd(const void *, void *);  \n" > sysarg
-		printf "void munge_dddddddd(const void *, void *);  \n" > sysarg
-		printf "#else \n" > sysarg
-		printf "#define munge_d  NULL \n" > sysarg
-		printf "#define munge_dd  NULL \n" > sysarg
-		printf "#define munge_ddd  NULL \n" > sysarg
-		printf "#define munge_dddd  NULL \n" > sysarg
-		printf "#define munge_ddddd  NULL \n" > sysarg
-		printf "#define munge_dddddd  NULL \n" > sysarg
-		printf "#define munge_ddddddd  NULL \n" > sysarg
-		printf "#define munge_dddddddd  NULL \n" > sysarg
-		printf "#endif // __ppc__\n" > sysarg
-		printf "#endif /* !__MUNGE_ONCE */\n" > sysarg
+		printf "#include <sys/munge.h>\n" > sysarg
 		
 		printf "\n" > sysarg
 
 		printf "const char *%s[] = {\n", namesname > syscallnamestempfile
+
+		printf "#include <sys/param.h>\n" > audittempfile
+		printf "#include <sys/types.h>\n\n" > audittempfile
+		printf "#include <bsm/audit.h>\n" > audittempfile
+		printf "#include <bsm/audit_kevents.h>\n\n" > audittempfile
+		printf "#if CONFIG_AUDIT\n\n" > audittempfile
+		printf "au_event_t sys_au_event[] = {\n" > audittempfile
 		next
 	}
 	NF == 0 || $1 ~ /^;/ {
@@ -239,6 +236,7 @@ s/\$//g
 		print > sysarg
 		print > syscallnamestempfile
 		print > sysprotoend
+		print > audittempfile
 		savesyscall = syscall_num
 		skip_for_header = 0
 		next
@@ -248,6 +246,7 @@ s/\$//g
 		print > sysarg
 		print > syscallnamestempfile
 		print > sysprotoend
+		print > audittempfile
 		syscall_num = savesyscall
 		skip_for_header = 1
 		next
@@ -257,6 +256,7 @@ s/\$//g
 		print > sysarg
 		print > syscallnamestempfile
 		print > sysprotoend
+		print > audittempfile
 		skip_for_header = 0
 		next
 	}
@@ -282,7 +282,7 @@ s/\$//g
 	
 	function parseline() {
 		funcname = ""
-		current_field = 3
+		current_field = 4	# skip number, audit event, type
 		args_start = 0
 		args_end = 0
 		comments_start = 0
@@ -398,56 +398,47 @@ s/\$//g
 		if (argc != 0)
 			argssize = "AC(" argalias ")"
 	}
-	
+
+	{
+		auditev = $2;
+	}
+
 	{
 		add_sysent_entry = 1
 		add_sysnames_entry = 1
 		add_sysheader_entry = 1
 		add_sysproto_entry = 1
-		add_64bit_unsafe = 0
-		add_64bit_fakesafe = 0
-		add_resv = "0"
-		my_flags = "0"
 
 
-		if ($2 != "ALL" && $2 != "UALL") {
+		if ($3 != "ALL") {
 			files_keyword_OK = 0
 			add_sysent_entry = 0
 			add_sysnames_entry = 0
 			add_sysheader_entry = 0
 			add_sysproto_entry = 0
 			
-			if (match($2, "[T]") != 0) {
+			if (match($3, "[T]") != 0) {
 				add_sysent_entry = 1
 				files_keyword_OK = 1
 			}
-			if (match($2, "[N]") != 0) {
+			if (match($3, "[N]") != 0) {
 				add_sysnames_entry = 1
 				files_keyword_OK = 1
 			}
-			if (match($2, "[H]") != 0) {
+			if (match($3, "[H]") != 0) {
 				add_sysheader_entry = 1
 				files_keyword_OK = 1
 			}
-			if (match($2, "[P]") != 0) {
+			if (match($3, "[P]") != 0) {
 				add_sysproto_entry = 1
 				files_keyword_OK = 1
 			}
-			if (match($2, "[U]") != 0) {
-				add_64bit_unsafe = 1
-			}
-			if (match($2, "[F]") != 0) {
-				add_64bit_fakesafe = 1
-			}
 			
 			if (files_keyword_OK == 0) {
 				printf "%s: line %d: unrecognized keyword %s\n", infile, NR, $2
 				exit 1
 			}
 		}
-		else if ($2 == "UALL") {
-			add_64bit_unsafe = 1;
-		}
 		
 		
 		parseline()
@@ -455,7 +446,6 @@ s/\$//g
 		# output function argument structures to sysproto.h and build the
 		# name of the appropriate argument mungers
 		munge32 = "NULL"
-		munge64 = "NULL"
 		size32 = 0
 
 		if ((funcname != "nosys" && funcname != "enosys") || (syscall_num == 0 && funcname == "nosys")) {
@@ -464,73 +454,60 @@ s/\$//g
 					printf("struct %s {\n", argalias) > sysarg
 				}
 				munge32 = "munge_"
-				munge64 = "munge_"
 				for (i = 1; i <= argc; i++) {
 					# Build name of argument munger.
 					# We account for all sys call argument types here.
 					# This is where you add any new types.  With LP64 support
 					# each argument consumes 64-bits.  
-					# see .../xnu/bsd/dev/ppc/munge.s for munge argument types.
+					# see .../xnu/bsd/dev/munge.c for munge argument types.
 					if (argtype[i] == "long") {
-						if (add_64bit_unsafe == 0)
-							ext_argtype[i] = "user_long_t";
+						ext_argtype[i] = "user_long_t";
 						munge32 = munge32 "s"
-						munge64 = munge64 "d"
 						size32 += 4
 					}
 					else if (argtype[i] == "u_long") {
-						if (add_64bit_unsafe == 0)
-							ext_argtype[i] = "user_ulong_t";
+						ext_argtype[i] = "user_ulong_t";
 						munge32 = munge32 "w"
-						munge64 = munge64 "d"
 						size32 += 4
 					}
 					else if (argtype[i] == "size_t") {
-						if (add_64bit_unsafe == 0)
-							ext_argtype[i] = "user_size_t";
+						ext_argtype[i] = "user_size_t";
 						munge32 = munge32 "w"
-						munge64 = munge64 "d"
 						size32 += 4
 					}
 					else if (argtype[i] == "ssize_t") {
-						if (add_64bit_unsafe == 0)
-							ext_argtype[i] = "user_ssize_t";
+						ext_argtype[i] = "user_ssize_t";
 						munge32 = munge32 "s"
-						munge64 = munge64 "d"
 						size32 += 4
 					}
 					else if (argtype[i] == "user_ssize_t" || argtype[i] == "user_long_t") {
 						munge32 = munge32 "s"
-						munge64 = munge64 "d"
 						size32 += 4
 					}
 					else if (argtype[i] == "user_addr_t" || argtype[i] == "user_size_t" ||
 						argtype[i] == "user_ulong_t") {
 						munge32 = munge32 "w"
-						munge64 = munge64 "d"
 						size32 += 4
 					}
 					else if (argtype[i] == "caddr_t" || argtype[i] == "semun_t" ||
-  						match(argtype[i], "[\*]") != 0) {
-						if (add_64bit_unsafe == 0)
-							ext_argtype[i] = "user_addr_t";
+  						argtype[i] == "uuid_t" || match(argtype[i], "[\*]") != 0) {
+						ext_argtype[i] = "user_addr_t";
 						munge32 = munge32 "w"
-						munge64 = munge64 "d"
 						size32 += 4
 					}
 					else if (argtype[i] == "int" || argtype[i] == "u_int" ||
 							 argtype[i] == "uid_t" || argtype[i] == "pid_t" ||
 							 argtype[i] == "id_t" || argtype[i] == "idtype_t" ||
 							 argtype[i] == "socklen_t" || argtype[i] == "uint32_t" || argtype[i] == "int32_t" ||
-							 argtype[i] == "sigset_t" || argtype[i] == "gid_t" ||
-							 argtype[i] == "mode_t" || argtype[i] == "key_t" || argtype[i] == "time_t") {
+							 argtype[i] == "sigset_t" || argtype[i] == "gid_t" || argtype[i] == "unsigned int" ||
+							 argtype[i] == "mode_t" || argtype[i] == "key_t" ||
+							 argtype[i] == "mach_port_name_t" || argtype[i] == "au_asid_t" ||
+							 argtype[i] == "associd_t" || argtype[i] == "connid_t") {
 						munge32 = munge32 "w"
-						munge64 = munge64 "d"
 						size32 += 4
 					}
 					else if (argtype[i] == "off_t" || argtype[i] == "int64_t" || argtype[i] == "uint64_t") {
 						munge32 = munge32 "l"
-						munge64 = munge64 "d"
 						size32 += 8
 					}
 					else {
@@ -553,7 +530,7 @@ s/\$//g
 				}
 			}
 			else if (add_sysproto_entry == 1) { 
-				printf("struct %s {\n\tregister_t dummy;\n};\n", argalias) > sysarg
+				printf("struct %s {\n\tint32_t dummy;\n};\n", argalias) > sysarg
 			}
 		}
 		
@@ -562,7 +539,6 @@ s/\$//g
 		if (add_sysent_entry == 0) {
 			argssize = "0"
 			munge32 = "NULL"
-			munge64 = "NULL"
 			munge_ret = "_SYSCALL_RET_NONE"
 			if (tempname != "enosys") {
 				tempname = "nosys"
@@ -582,9 +558,15 @@ s/\$//g
 			else if (returntype == "int") {
 				munge_ret = "_SYSCALL_RET_INT_T"
 			}
-			else if (returntype == "u_int") {
+			else if (returntype == "u_int" || returntype == "mach_port_name_t") {
+				munge_ret = "_SYSCALL_RET_UINT_T"
+			}
+			else if (returntype == "uint32_t") {
 				munge_ret = "_SYSCALL_RET_UINT_T"
 			}
+			else if (returntype == "uint64_t") {
+				munge_ret = "_SYSCALL_RET_UINT64_T"
+			}
 			else if (returntype == "off_t") {
 				munge_ret = "_SYSCALL_RET_OFF_T"
 			}
@@ -600,15 +582,17 @@ s/\$//g
 			}
 		}
 
-		if (add_64bit_unsafe == 1  && add_64bit_fakesafe == 0)
-			my_flags = "UNSAFE_64BIT";
-
-		printf("\t{%s, %s, %s, \(sy_call_t *\)%s, %s, %s, %s, %s},", 
-				argssize, add_resv, my_flags, tempname, munge32, munge64, munge_ret, size32) > sysent
-		linesize = length(argssize) + length(add_resv) + length(my_flags) + length(tempname) + \
-				length(munge32) + length(munge64) + length(munge_ret) + 28
+		printf("#if CONFIG_REQUIRES_U32_MUNGING\n") > sysent
+		printf("\t{ \(sy_call_t *\)%s, %s, %s, %s, %s},", 
+				tempname, munge32, munge_ret, argssize, size32) > sysent
+		linesize = length(tempname) + length(munge32) + \
+			length(munge_ret) + length(argssize) + length(size32) + 28
 		align_comment(linesize, 88, sysent)
 		printf("/* %d = %s%s*/\n", syscall_num, funcname, additional_comments) > sysent
+		printf("#else\n") > sysent
+		printf("\t{ \(sy_call_t *\)%s, %s, %s, %s},\n", 
+				tempname, munge_ret, argssize, size32) > sysent
+		printf("#endif\n") > sysent
 		
 		# output to syscalls.c
 		if (add_sysnames_entry == 1) {
@@ -657,7 +641,7 @@ s/\$//g
 		# output function prototypes to sysproto.h
 		if (add_sysproto_entry == 1) {
 			if (funcname =="exit") {
-				printf("void %s(struct proc *, struct %s *, int *);\n", 
+				printf("void %s(struct proc *, struct %s *, int32_t *);\n", 
 						funcname, argalias) > sysprotoend
 			}
 			else if ((funcname != "nosys" && funcname != "enosys") || (syscall_num == 0 && funcname == "nosys")) {
@@ -665,6 +649,10 @@ s/\$//g
 						funcname, argalias, returntype) > sysprotoend
 			}
 		}
+
+		# output to audit_kevents.c
+		printf("\t%s,\t\t", auditev) > audittempfile
+		printf("/* %d = %s%s*/\n", syscall_num, tempname, additional_comments) > audittempfile 
 		
 		syscall_num++
 		next
@@ -692,13 +680,30 @@ s/\$//g
 		    > syshdrtempfile
 		printf("\n#endif /* __APPLE_API_PRIVATE */\n") > syshdrtempfile
 		printf("#endif /* !%s */\n", syscall_h) > syshdrtempfile
+		printf("};\n\n") > audittempfile
+		printf("#endif /* AUDIT */\n") > audittempfile
 	} '
 
 # define value in syscall table file to permit redifintion because of the way
 # __private_extern__ (doesn't) work.
-cat $syslegal > $syscalltablefile
-printf "#define __INIT_SYSENT_C__ 1\n" >> $syscalltablefile
-cat $sysinc $sysent >> $syscalltablefile
-cat $syslegal $sysarg $sysprotoend > $sysprotofile
-cat $syslegal $syscallnamestempfile > $syscallnamesfile
-cat $syslegal $syshdrtempfile > $syshdrfile
+if [ $output_syscalltablefile -eq 1 ]; then
+    cat $syslegal > $syscalltablefile
+    printf "#define __INIT_SYSENT_C__ 1\n" >> $syscalltablefile
+    cat $sysinc $sysent >> $syscalltablefile
+fi
+
+if [ $output_syscallnamesfile -eq 1 ]; then
+    cat $syslegal $syscallnamestempfile > $syscallnamesfile
+fi
+
+if [ $output_sysprotofile -eq 1 ]; then
+    cat $syslegal $sysarg $sysprotoend > $sysprotofile
+fi
+
+if [ $output_syshdrfile -eq 1 ]; then
+    cat $syslegal $syshdrtempfile > $syshdrfile
+fi
+
+if [ $output_auditevfile -eq 1 ]; then
+    cat $syslegal $audittempfile > $auditevfile
+fi