The .INS config files can normally be found on CD-ROM ISO images,
so by supporting these files, it is now possible to boot directly
when the TFTP server is set up with the contents of such an CD-ROM
image.
Signed-off-by: Thomas Huth <th...@redhat.com>
---
pc-bios/s390-ccw/netmain.c | 51 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 51 insertions(+)
diff --git a/pc-bios/s390-ccw/netmain.c b/pc-bios/s390-ccw/netmain.c
index 129f009..e5418a9 100644
--- a/pc-bios/s390-ccw/netmain.c
+++ b/pc-bios/s390-ccw/netmain.c
@@ -453,6 +453,55 @@ static int net_try_pxelinux_cfgs(filename_ip_t *fn_ip)
return -1;
}
+/**
+ * Load via information from a .INS file (which can be found on CD-ROMs
+ * for example)
+ */
+static int handle_ins_cfg(filename_ip_t *fn_ip, char *cfg, int cfgsize)
+{
+ char *ptr;
+ int rc = -1, llen;
+ void *destaddr;
+ char *insbuf = cfg;
+
+ ptr = strchr(insbuf, '\n');
+ if (!ptr) {
+ puts("Does not seem to be a valid .INS file");
+ return -1;
+ }
+
+ *ptr = 0;
+ printf("\nParsing .INS file:\n %s\n", &insbuf[2]);
+
+ insbuf = ptr + 1;
+ while (*insbuf && insbuf < cfg + cfgsize) {
+ ptr = strchr(insbuf, '\n');
+ if (ptr) {
+ *ptr = 0;
+ }
+ llen = strlen(insbuf);
+ if (!llen) {
+ insbuf = ptr + 1;
+ continue;
+ }
+ ptr = strchr(insbuf, ' ');
+ if (!ptr) {
+ puts("Missing space separator in .INS file");
+ return -1;
+ }
+ *ptr = 0;
+ strncpy((char *)fn_ip->filename, insbuf, sizeof(fn_ip->filename));
+ destaddr = (char *)atol(ptr + 1);
+ rc = tftp_load(fn_ip, destaddr, (long)_start - (long)destaddr);
+ if (rc <= 0) {
+ break;
+ }
+ insbuf += llen + 1;
+ }
+
+ return rc;
+}
+
static int net_try_direct_tftp_load(filename_ip_t *fn_ip)
{
int rc;
@@ -473,6 +522,8 @@ static int net_try_direct_tftp_load(filename_ip_t *fn_ip)
if (!strncasecmp("default", cfgbuf, 7) || !strncmp("# ", cfgbuf, 2)) {
/* Looks like it is a pxelinux.cfg */
return handle_pxelinux_cfg(fn_ip, cfgbuf, rc);
+ } else if (!strncmp("* ", cfgbuf, 2)) {
+ return handle_ins_cfg(fn_ip, cfgbuf, rc);
}
}
--
1.8.3.1
