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mirror of https://github.com/samba-team/samba.git synced 2025-01-29 21:47:30 +03:00

preliminary support for unions

This commit is contained in:
Andrew Tridgell -
parent 7bc87d20ea
commit 57a6cb52e6
7 changed files with 331 additions and 193 deletions

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@ -2,7 +2,7 @@ CFLAGS=-Wall -g
CC=gcc
%.h : %.struct
awk -f parser.awk < $*.struct > $*.h
igawk -f parser.awk < $*.struct > $*.h
OBJ = harness.o parser.o

43
source/aparser/basic.awk Normal file
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@ -0,0 +1,43 @@
function uint32_parser(elem) {
printf("\
if(!prs_uint32(\"%s\", ps, depth, &il->%s))\n\
return False;\n\
", elem, elem);
}
function unistr2_parser(elem) {
printf("\
if(!prs_uint32(\"%s_ptr\", ps, depth, &il->%s_ptr))\n\
return False;\n\
", elem, elem);
}
function buffer5_parser(elem) {
printf("\
if(!prs_uint32(\"%s_len\", ps, depth, &il->%s_len))\n\
return False;\n\
if(!prs_uint32(\"%s_ptr\", ps, depth, &il->%s_ptr))\n\
return False;\n\
", elem, elem, elem, elem);
}
function nttime_parser(elem) {
printf("\
if(!smb_io_time(\"%s\", &il->%s, ps, depth))\n\
return False;\n\
", elem, elem);
}
function uint64_parser(elem) {
printf("\
if(!prs_uint64(\"%s\", ps, depth, &il->%s))\n\
return False;\n\
", elem, elem);
}
function generic_parser(type, elem) {
printf("\
if(!%s(\"%s\", &il->%s, ps, depth))\n\
return False;\n\
", "io_"tolower(type), elem, elem);
}

39
source/aparser/func.awk Normal file
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@ -0,0 +1,39 @@
function func_footer() {
printf("\n\
\n\
return True;\n\
}\n");
}
function func_header(func_name, struct_name)
{
printf("\
/*******************************************************************\n\
parse a %s structure\n\
********************************************************************/ \n\
BOOL %s(char *desc, %s **q_u, \n\
prs_struct *ps, int depth)\n\
{ \n\
%s *il;\n\
\n\
prs_debug(ps, depth, desc, \"%s\");\n\
depth++;\n\
\n\
/* reading */\n\
if (UNMARSHALLING(ps)) {\n\
il=(%s *)malloc(sizeof(%s));\n\
if(il == NULL)\n\
return False;\n\
ZERO_STRUCTP(il);\n\
*q_u=il;\n\
}\n\
else {\n\
il=*q_u;\n\
}\n\
\n\
if(!prs_align(ps))\n\
return False;\n\
\n\
", struct_name, func_name, struct_name, struct_name, func_name, struct_name, struct_name);
}

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@ -1,9 +1,7 @@
function add_elem(type, elem)
{
types[num_elems] = type;
elems[num_elems] = elem;
num_elems++;
}
@include basic.awk
@include struct.awk
@include union.awk
@include func.awk
function produce_preamble() {
printf("#define TEST_STRUCT %s\n", struct_name);
@ -12,189 +10,50 @@ function produce_preamble() {
printf("\n\n");
}
function produce_header() {
printf("\n/* %s structure */\n", struct_name);
printf("typedef struct {\n");
for (i=0;i<num_elems;i++) {
if (types[i] == "UNISTR2") {
printf("\tuint32 %s_ptr;\n", elems[i]);
} else if (types[i] == "BUFFER5") {
printf("\tuint32 %s_len;\n", elems[i]);
printf("\tuint32 %s_ptr;\n", elems[i]);
} else {
printf("\t%s\t%s;\n", types[i], elems[i]);
}
}
for (i=0;i<num_elems;i++) {
if (types[i] == "UNISTR2" ||
types[i] == "BUFFER5") {
printf("\t%s\t%s;\n", types[i], elems[i]);
}
}
printf("} %s;\n\n", struct_name);
}
function parse_structs() {
printf("\n\t/* parse the structures in the packet */\n\n");
for (i=0;i<num_elems;i++) {
if (types[i] == "UNISTR2") {
io_unistr2(elems[i]);
}
if (types[i] == "BUFFER5") {
io_buffer5(elems[i]);
}
}
}
function io_unistr2(elem) {
printf("\
if(!smb_io_unistr2(\"%s\", &il->%s, il->%s_ptr, ps, depth))\n\
return False;\n\
if(!prs_align(ps))\n\
return False;\n\
", elem, elem, elem);
}
function io_buffer5(elem) {
printf("\
if (il->%s_ptr) {\n\
if(!smb_io_buffer5(\"%s\", &il->%s, ps, depth))\n\
return False;\n\
if(!prs_align(ps))\n\
return False;\n\
}\n\
", elem, elem, elem);
}
function start_struct(name) {
num_elems=0;
struct_name=toupper(module"_"name);
func_name=tolower(module"_io_"name);
}
function parse_elems() {
printf("\n\t/* parse the main elements the packet */\n\n");
for (i=0;i<num_elems;i++) {
if (types[i] == "uint32") {
uint32_parser(elems[i]);
}
if (types[i] == "UINT64_S") {
uint64_parser(elems[i]);
}
if (types[i] == "UNISTR2") {
unistr2_parser(elems[i]);
}
if (types[i] == "BUFFER5") {
buffer5_parser(elems[i]);
}
if (types[i] == "NTTIME") {
nttime_parser(elems[i]);
}
}
}
function end_struct() {
produce_preamble();
produce_header();
func_header(func_name, struct_name);
parse_elems();
parse_structs();
func_footer();
}
function func_footer() {
printf("\n\
\n\
return True;\n\
}\n");
}
function func_header(func_name, struct_name)
{
printf("\
/*******************************************************************\n\
parse a %s structure\n\
********************************************************************/ \n\
BOOL %s(char *desc, %s **q_u, \n\
prs_struct *ps, int depth)\n\
{ \n\
%s *il;\n\
\n\
prs_debug(ps, depth, desc, \"%s\");\n\
depth++;\n\
\n\
/* reading */\n\
if (UNMARSHALLING(ps)) {\n\
il=(%s *)malloc(sizeof(%s));\n\
if(il == NULL)\n\
return False;\n\
ZERO_STRUCTP(il);\n\
*q_u=il;\n\
}\n\
else {\n\
il=*q_u;\n\
}\n\
\n\
if(!prs_align(ps))\n\
return False;\n\
\n\
", struct_name, func_name, struct_name, struct_name, func_name, struct_name, struct_name);
}
function uint32_parser(elem) {
printf("\
if(!prs_uint32(\"%s\", ps, depth, &il->%s))\n\
return False;\n\
", elem, elem);
}
function unistr2_parser(elem) {
printf("\
if(!prs_uint32(\"%s_ptr\", ps, depth, &il->%s_ptr))\n\
return False;\n\
", elem, elem);
}
function buffer5_parser(elem) {
printf("\
if(!prs_uint32(\"%s_len\", ps, depth, &il->%s_len))\n\
return False;\n\
if(!prs_uint32(\"%s_ptr\", ps, depth, &il->%s_ptr))\n\
return False;\n\
", elem, elem, elem, elem);
}
function nttime_parser(elem) {
printf("\
if(!smb_io_time(\"%s\", &il->%s, ps, depth))\n\
return False;\n\
", elem, elem);
}
function uint64_parser(elem) {
printf("\
if(!prs_uint64(\"%s\", ps, depth, &il->%s))\n\
return False;\n\
", elem, elem);
}
/^module/ {
module=$2;
next;
}
/^test/ {
test=$2;
next;
}
/^struct/ {
start_struct($2);
next;
}
/^[ \t]*union/ {
start_union($2, $3);
next;
}
/^\}/ {
/^[ \t]*case/ {
split($0,a,"[ \t;]*");
parse_case(a[3],a[4],a[5]);
next;
}
/^\};/ {
end_struct();
next;
}
/uint32|UINT64_S|UNISTR2|BUFFER5|NTTIME/ {
split($0,a,"[ ;]*");
add_elem(a[2], a[3]);
/^[ \t]*\}/ {
end_union();
next;
}
/^[ \t]*REF/ {
split($0,a,"[ \t;]*");
add_elem(a[3],a[4], 1);
next;
}
/.*;/ {
split($0,a,"[ \t;]*");
add_elem(a[2], a[3], 0);
}

158
source/aparser/struct.awk Normal file
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@ -0,0 +1,158 @@
function isaptr(elem) {
if (substr(elem, 1, 1) == "*") {
return 1;
}
return 0;
}
function header_elem1(type, elem, ref) {
if (type == "BUFFER5") {
printf("\tuint32 %s_len;\n", elem);
}
if (ref == 1) {
printf("\tuint32 %s_ptr;\n", elem);
} else {
printf("\t%s\t%s;\n", type, elem);
}
}
function header_elem2(type, elem, ref) {
if (ref) {
printf("\t%s\t%s;\n", type, elem);
}
}
function produce_header1() {
printf("\n/* %s structure */\n", struct_name);
printf("typedef struct {\n");
for (i=0;i<num_elems;i++) {
if (unions[i] != unions[i-1]) {
if (unions[i] != "") {
printf("\tunion {\n");
} else {
printf("\t} %s;\n", unions[i-1]);
}
}
if (isptr[i]) {
header_elem1(types[i], "*"elems[i], isref[i]);
} else {
header_elem1(types[i], elems[i], isref[i]);
}
}
if (unions[i-1] != "") {
printf("\t} %s;\n", unions[i-1]);
}
}
function produce_header2() {
for (i=0;i<num_elems;i++) {
if (isptr[i]) {
header_elem2(types[i], "*"elems[i], isref[i]);
} else {
header_elem2(types[i], elems[i], isref[i]);
}
}
printf("} %s;\n\n", struct_name);
}
function produce_header() {
produce_header1();
produce_header2();
}
function parse_structs() {
printf("\n\t/* parse the structures in the packet */\n\n");
for (i=0;i<num_elems;i++) {
if (types[i] == "UNISTR2") {
io_unistr2(elems[i]);
} else if (types[i] == "BUFFER5") {
io_buffer5(elems[i]);
}
}
}
function io_unistr2(elem) {
printf("\
if(!smb_io_unistr2(\"%s\", &il->%s, il->%s_ptr, ps, depth))\n\
return False;\n\
if(!prs_align(ps))\n\
return False;\n\
", elem, elem, elem);
}
function io_buffer5(elem) {
printf("\
if (il->%s_ptr) {\n\
if(!smb_io_buffer5(\"%s\", &il->%s, ps, depth))\n\
return False;\n\
if(!prs_align(ps))\n\
return False;\n\
}\n\
", elem, elem, elem);
}
function start_struct(name) {
num_elems=0;
union="";
case="";
struct_name=toupper(name);
func_name=tolower("io_"name);
if (name == test) {
produce_preamble();
}
}
function parse_one(type, elem) {
if (type == "uint32") {
uint32_parser(elem);
} else if (type == "UINT64_S") {
uint64_parser(elem);
} else if (type == "UNISTR2") {
unistr2_parser(elem);
} else if (type == "BUFFER5") {
buffer5_parser(elem);
} else if (type == "NTTIME") {
nttime_parser(elem);
} else {
generic_parser(type, elem);
}
}
function parse_elems() {
printf("\n\t/* parse the main elements of the packet */\n\n");
for (i=0;i<num_elems;i++) {
if (cases[i] != "") {
printf("\tif (il->%s == %s) {\n",
switches[i], cases[i]);
parse_one(types[i], unions[i]"."elems[i]);
printf("\t}\n");
} else {
parse_one(types[i], elems[i]);
}
}
}
function end_struct() {
produce_header();
func_header(func_name, struct_name);
parse_elems();
parse_structs();
func_footer();
}
function add_elem(type, elem, ref)
{
types[num_elems] = type;
elems[num_elems] = elem;
switches[num_elems] = switch;
cases[num_elems] = case;
unions[num_elems] = union;
isref[num_elems] = ref;
isptr[num_elems] = isaptr(elem);
if (isptr[num_elems] == 1) {
elems[num_elems] = substr(elems[num_elems], 2);
}
num_elems++;
}

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@ -1,23 +1,46 @@
module spool
test PRINTER_DRIVER_INFO
struct PRINTER_DRIVER_INFO_LEVEL_3 {
uint32 cversion;
REF UNISTR2 name;
REF UNISTR2 environment;
REF UNISTR2 driverpath;
REF UNISTR2 datafile;
REF UNISTR2 configfile;
REF UNISTR2 helpfile;
REF UNISTR2 monitorname;
REF UNISTR2 defaultdatatype;
REF BUFFER5 dependentfiles;
};
struct PRINTER_DRIVER_INFO_LEVEL_6 {
uint32 dummy1;
uint32 version;
UNISTR2 name;
UNISTR2 environment;
UNISTR2 driverpath;
UNISTR2 datafile;
UNISTR2 configfile;
UNISTR2 helpfile;
UNISTR2 monitorname;
UNISTR2 defaultdatatype;
BUFFER5 dependentfiles;
BUFFER5 previousnames;
REF UNISTR2 name;
REF UNISTR2 environment;
REF UNISTR2 driverpath;
REF UNISTR2 datafile;
REF UNISTR2 configfile;
REF UNISTR2 helpfile;
REF UNISTR2 monitorname;
REF UNISTR2 defaultdatatype;
REF BUFFER5 dependentfiles;
REF BUFFER5 previousnames;
NTTIME driverdate;
UINT64_S driverversion;
uint32 dummy4;
UNISTR2 mfgname;
UNISTR2 oemurl;
UNISTR2 hardwareid;
UNISTR2 provider;
REF UNISTR2 mfgname;
REF UNISTR2 oemurl;
REF UNISTR2 hardwareid;
REF UNISTR2 provider;
};
struct PRINTER_DRIVER_INFO {
uint32 level;
union level info {
case 3 PRINTER_DRIVER_INFO_LEVEL_3 *info_3;
case 6 PRINTER_DRIVER_INFO_LEVEL_6 *info_6;
}
};

16
source/aparser/union.awk Normal file
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@ -0,0 +1,16 @@
function start_union(elem, name) {
switch=elem;
union=name;
}
function parse_case(value,type,elem) {
case=value;
add_elem(type, elem, 0);
}
function end_union() {
union="";
case="";
switch="";
}