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Clean up NFS/TFTP remote fileystem setup.

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This commit is contained in:
W. Eric Norum
2004-09-30 17:58:42 +00:00
parent 1dda0263f0
commit 2e66cfb8fb
1 changed files with 94 additions and 50 deletions
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144
src/RTEMS/base/rtems_init.c
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@@ -32,17 +32,6 @@
#include <osiUnistd.h>
#include <iocsh.h>
#ifdef OMIT_NFS_SUPPORT
# include <rtems/tftp.h>
#else
# ifndef RTEMS_EPICS_NFS_SERVER_PATH
# define RTEMS_EPICS_NFS_SERVER_PATH "/tftpboot/epics"
# endif
# ifndef RTEMS_EPICS_NFS_MOUNT_POINT
# define RTEMS_EPICS_NFS_MOUNT_POINT "/epics"
# endif
#endif
/*
* Architecture-dependent routines
*/
@@ -161,45 +150,114 @@ LogNetFatal (const char *msg, int err)
delayedPanic (msg);
}
void *
mustMalloc(int size, const char *msg)
{
void *p;
if ((p = malloc (size)) == NULL)
LogFatal ("Can't allocate space for %s.\n");
return p;
}
/*
***********************************************************************
* REMOTE FILE ACCESS *
***********************************************************************
*/
/*
* Add TFTP server and target prefix to pathnames
*/
#ifdef OMIT_NFS_SUPPORT
# include <rtems/tftp.h>
#endif
static void
rtems_set_directory (void)
initialize_remote_filesystem(const char **argv)
{
#ifdef OMIT_NFS_SUPPORT
char *path;
int pathsize = 200;
int l;
if ((path = malloc (pathsize)) == NULL)
LogFatal ("Can't create TFTP path name -- no memory.\n");
#ifdef OMIT_NFS_SUPPORT
strcpy (path, "/TFTP/BOOTP_HOST/tftpboot/epics/");
printf ("***** Initializing TFTP *****\n");
rtems_bsdnet_initialize_tftp_filesystem ();
path = mustMalloc(pathsize, "Command path name ");
strcpy (path, "/TFTP/BOOTP_HOST/epics/");
l = strlen (path);
if (gethostname (&path[l], pathsize - l - 2) || (path[l] == '\0'))
if (gethostname (&path[l], pathsize - l - 10) || (path[l] == '\0'))
LogFatal ("Can't get host name");
strcat (path, "/");
strcat (path, "/st.cmd");
argv[1] = path;
#else
{
char *cp = strrchr(rtems_bsdnet_bootp_cmdline, '/');
if (cp == NULL)
l = strlen(rtems_bsdnet_bootp_cmdline);
char *server_path;
char *mount_point;
char *cp;
int l = 0;
printf ("***** Initializing NFS *****\n");
rpcUdpInit();
nfsInit(0,0);
/*
* Use first component of nvram/bootp command line pathname
* to set up initial NFS mount. A "/tftpboot/" is prepended
* if the pathname does not begin with a '/'. This allows
* NFS and TFTP to have a similar view of the remote system.
*/
if (rtems_bsdnet_bootp_cmdline[0] == '/')
cp = rtems_bsdnet_bootp_cmdline + 1;
else
l = cp - rtems_bsdnet_bootp_cmdline;
if (l >= pathsize)
LogFatal ("Boot command path too long");
strncpy(path, rtems_bsdnet_bootp_cmdline, l);
path[l] = '\0';
cp = rtems_bsdnet_bootp_cmdline;
cp = strchr(cp, '/');
if ((cp == NULL)
|| ((l = cp - rtems_bsdnet_bootp_cmdline) == 0))
LogFatal("\"%s\" is not a valid command pathname.\n", rtems_bsdnet_bootp_cmdline);
cp = mustMalloc(l + 20, "NFS mount paths");
server_path = cp;
if (rtems_bsdnet_bootp_cmdline[0] == '/') {
mount_point = server_path;
strncpy(mount_point, rtems_bsdnet_bootp_cmdline, l);
mount_point[l] = '\0';
argv[1] = rtems_bsdnet_bootp_cmdline;
}
else {
char *abspath = mustMalloc(strlen(rtems_bsdnet_bootp_cmdline)+2,"Absolute command path");
strcpy(server_path, "/tftpboot/");
mount_point = server_path + strlen(server_path);
strncpy(mount_point, rtems_bsdnet_bootp_cmdline, l);
mount_point[l] = '\0';
mount_point--;
strcpy(abspath, "/");
strcat(abspath, rtems_bsdnet_bootp_cmdline);
argv[1] = abspath;
}
nfsMount(rtems_bsdnet_bootp_server_name, server_path, mount_point);
free(cp);
#endif
if (chdir (path) < 0)
LogFatal ("Can't set initial directory");
free(path);
argv[0] = rtems_bsdnet_bootp_boot_file_name;
}
/*
* Get to the startup script directory
* The TFTP filesystem requires a trailing '/' on chdir arguments.
*/
static void
set_directory (const char *commandline)
{
const char *cp;
char *directoryPath;
int l;
cp = strrchr(commandline, '/');
if (cp == NULL)
l = strlen(commandline);
else
l = cp - commandline;
directoryPath = mustMalloc(l + 2, "Command path directory ");
strncpy(directoryPath, commandline, l);
directoryPath[l] = '/';
directoryPath[l+1] = '\0';
if (chdir (directoryPath) < 0)
LogFatal ("Can't set initial directory: %s\n", strerror(errno));
free(directoryPath);
}
/*
@@ -302,9 +360,7 @@ rtems_task
Init (rtems_task_argument ignored)
{
int i;
char arg0[] = "RTEMS_IOC";
char arg1[] = "st.cmd";
char *argv[3] = { arg0, arg1, NULL };
const char *argv[3] = { NULL, NULL, NULL };
rtems_interval ticksPerSecond;
rtems_task_priority newpri;
rtems_status_code sc;
@@ -325,8 +381,6 @@ Init (rtems_task_argument ignored)
{
extern void setBootConfigFromPPCBUGNVRAM(void);
setBootConfigFromPPCBUGNVRAM();
argv[0] = rtems_bsdnet_bootp_boot_file_name;
argv[1] = rtems_bsdnet_bootp_cmdline ;
}
#endif
@@ -357,17 +411,7 @@ Init (rtems_task_argument ignored)
}
printf ("***** Initializing network *****\n");
rtems_bsdnet_initialize_network ();
#ifdef OMIT_NFS_SUPPORT
printf ("***** Initializing TFTP *****\n");
rtems_bsdnet_initialize_tftp_filesystem ();
#else
printf ("***** Initializing NFS *****\n");
rpcUdpInit();
nfsInit(0,0);
nfsMount(rtems_bsdnet_bootp_server_name,
RTEMS_EPICS_NFS_SERVER_PATH,
RTEMS_EPICS_NFS_MOUNT_POINT);
#endif
initialize_remote_filesystem (argv);
/*
* Use BSP-supplied time of day if available
@@ -402,7 +446,7 @@ Init (rtems_task_argument ignored)
*/
printf ("***** Starting EPICS application *****\n");
iocshRegisterRTEMS ();
rtems_set_directory ();
set_directory (argv[1]);
i = main ((sizeof argv / sizeof argv[0]) - 1, argv);
printf ("***** IOC application terminating *****\n");
exit (i);