Mercurial > hvf > hvf-old
changeset 491:0bb9a9b527cd
cp: stubs for config file parsing
At the moment, there isn't much to it. It accesses the IPL DASD and then
reads each record from SYSTEM CONFIG on that volume.
Signed-off-by: Josef 'Jeff' Sipek <jeffpc@josefsipek.net>
| author | Josef 'Jeff' Sipek <jeffpc@josefsipek.net> |
|---|---|
| date | Thu, 21 Apr 2011 15:52:52 -0400 |
| parents | 0242c06156d8 |
| children | bf04161a8f5c |
| files | cp/include/config.h cp/nucleus/Makefile cp/nucleus/config.c cp/nucleus/init.c |
| diffstat | 4 files changed, 65 insertions(+), 1 deletions(-) [+] |
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--- a/cp/include/config.h Thu Apr 21 14:35:54 2011 -0400 +++ b/cp/include/config.h Thu Apr 21 15:52:52 2011 -0400 @@ -18,4 +18,10 @@ #define OPER_CONSOLE_CCUU 0x0009 +#define CONFIG_LRECL 80 +#define CONFIG_FILE_NAME "SYSTEM " +#define CONFIG_FILE_TYPE "CONFIG " + +extern int load_config(); + #endif
--- a/cp/nucleus/Makefile Thu Apr 21 14:35:54 2011 -0400 +++ b/cp/nucleus/Makefile Thu Apr 21 15:52:52 2011 -0400 @@ -1,2 +1,2 @@ objs-nucleus := init.o io.o printf.o int.o ext.o svc.o pgm.o spinlock.o \ - mutex.o sched.o + mutex.o sched.o config.o
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/cp/nucleus/config.c Thu Apr 21 15:52:52 2011 -0400 @@ -0,0 +1,52 @@ +#include <device.h> +#include <bdev.h> +#include <edf.h> +#include <ebcdic.h> + +static int parse_config_stmnt(char *stmnt) +{ + if (stmnt[0] == '*') + return 0; /* comment */ + + return 0; +} + +int load_config(u32 iplsch) +{ + struct device *dev; + struct fs *fs; + struct file *file; + char buf[CONFIG_LRECL]; + int ret; + int i; + + /* find the real device */ + dev = find_device_by_sch(iplsch); + if (IS_ERR(dev)) + return PTR_ERR(dev); + + /* mount the fs */ + fs = edf_mount(dev); + if (IS_ERR(fs)) + return PTR_ERR(fs); + + /* look up the config file */ + file = edf_lookup(fs, CONFIG_FILE_NAME, CONFIG_FILE_TYPE); + if (IS_ERR(file)) + return PTR_ERR(file); + + /* parse each record in the config file */ + for(i=0; i<file->FST.FSTAIC; i++) { + ret = edf_read_rec(file, buf, i); + if (ret) + return ret; + + ebcdic2ascii((u8 *) buf, CONFIG_LRECL); + + ret = parse_config_stmnt(buf); + if (ret) + return ret; + } + + return 0; +}