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Make home directory and default user configurable

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Use home= and user= parameters in the kernel command line to set
the home device and the default user

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
This commit is contained in:
Claudio Matsuoka
2008-01-10 15:43:26 -02:00
parent a3e79ff583
commit ebb0d03034
2 changed files with 34 additions and 11 deletions
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Makefile
+1 -1
View File
@@ -1,5 +1,5 @@
CC = gcc
CFLAGS = -Os -Wall #-mno-push-args
CFLAGS = -Os -Wall #-DDEBUG
LD = gcc
LDFLAGS =
LIBS =
ffinit.c
+33 -10
View File
@@ -41,8 +41,6 @@ THE SOFTWARE.
#define VERSION "0.0"
#define DEBUG
#ifdef DEBUG
#define debug(x...) do { \
printf("finit: %d: ", __LINE__); printf(x); printf("\n"); \
@@ -124,6 +122,7 @@ int main()
char hline[1024];
char *x;
sigset_t nmask, nmask2;
char defuser[64], homedev[64];
puts("finit " VERSION);
@@ -153,18 +152,39 @@ int main()
reboot(RB_DISABLE_CAD);
strncpy(homedev, "", 64);
strncpy(defuser, DEFUSER, 64);
mount("proc", "/proc", "proc", 0, NULL);
/*
* Parse kernel parameters
*/
if ((f = fopen("/proc/cmdline", "r")) != NULL) {
char *t;
fgets(line, 2095, f);
if (strstr(line, "quiet")) {
close(0);
close(1);
close(2);
debug("cmdline = %s", line);
t = strtok(line, " ");
while (t) {
debug("t = %s", t);
if (!strcmp(t, "quiet")) {
close(0);
close(1);
close(2);
} else if (!strncmp(t, "home=", 5)) {
strncpy(homedev, t + 5, 64);
} else if (!strncmp(t, "user=", 5)) {
strncpy(defuser, t + 5, 64);
}
t = strtok(NULL, " ");
}
fclose(f);
}
debug("home = %s", homedev);
debug("user = %s", defuser);
setsid();
@@ -181,14 +201,16 @@ int main()
mkdir("/dev/shm", 0755);
mkdir("/dev/pts", 0755);
mount("proc", "/proc", "proc", 0, NULL);
mount("sysfs", "/sys", "sysfs", 0, NULL);
mount("devpts", "/dev/pts", "devpts", 0, "gid=5,mode=620");
mount("tmpfs", "/dev/shm", "tmpfs", 0, NULL);
mount("tmpfs", "/tmp", "tmpfs", 0, "mode=1777,size=128m");
#ifdef HOMEDEV
mount(HOMEDEV, "/home", "ext3", 0, NULL);
#endif
if (strlen(homedev)) {
debug("mount home at %s", homedev);
mount(homedev, "/home", "ext3", 0, NULL);
}
mount(SYSROOT, "/", NULL, MS_MOVE, NULL);
#ifdef MAKE_DEVICES
@@ -202,6 +224,7 @@ int main()
chmod("/dev/mem", 0640);
chardev("/dev/tty", 0666, 5, 0);
chardev("/dev/input/mice", 0660, 13, 63);
chardev("/dev/input/event0", 0660, 13, 64);
chardev("/dev/agpgart", 0660, 10, 175);
#endif