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-rw-r--r--debian/patches-applied/008_modules_pam_limits_chroot132
1 files changed, 132 insertions, 0 deletions
diff --git a/debian/patches-applied/008_modules_pam_limits_chroot b/debian/patches-applied/008_modules_pam_limits_chroot
new file mode 100644
index 00000000..fd4fc3a8
--- /dev/null
+++ b/debian/patches-applied/008_modules_pam_limits_chroot
@@ -0,0 +1,132 @@
+Index: pam.debian/modules/pam_limits/pam_limits.c
+===================================================================
+--- pam.debian.orig/modules/pam_limits/pam_limits.c
++++ pam.debian/modules/pam_limits/pam_limits.c
+@@ -87,6 +87,7 @@
+ int flag_numsyslogins; /* whether to limit logins only for a
+ specific user or to count all logins */
+ int priority; /* the priority to run user process with */
++ char chroot_dir[8092]; /* directory to chroot into */
+ struct user_limits_struct limits[RLIM_NLIMITS];
+ const char *conf_file;
+ int utmp_after_pam_call;
+@@ -97,6 +98,7 @@
+ #define LIMIT_NUMSYSLOGINS RLIM_NLIMITS+2
+
+ #define LIMIT_PRI RLIM_NLIMITS+3
++#define LIMIT_CHROOT RLIM_NLIMITS+4
+
+ #define LIMIT_SOFT 1
+ #define LIMIT_HARD 2
+@@ -472,6 +474,8 @@
+ pl->login_limit = -2;
+ pl->login_limit_def = LIMITS_DEF_NONE;
+
++ pl->chroot_dir[0] = '\0';
++
+ return retval;
+ }
+
+@@ -542,6 +546,8 @@
+ pl->flag_numsyslogins = 1;
+ } else if (strcmp(lim_item, "priority") == 0) {
+ limit_item = LIMIT_PRI;
++ } else if (strcmp(lim_item, "chroot") == 0) {
++ limit_item = LIMIT_CHROOT;
+ } else {
+ pam_syslog(pamh, LOG_DEBUG, "unknown limit item '%s'", lim_item);
+ return;
+@@ -579,9 +585,9 @@
+ pam_syslog(pamh, LOG_DEBUG,
+ "wrong limit value '%s' for limit type '%s'",
+ lim_value, lim_type);
+- return;
++ return;
+ }
+- } else {
++ } else if (limit_item != LIMIT_CHROOT) {
+ #ifdef __USE_FILE_OFFSET64
+ rlimit_value = strtoull (lim_value, &endptr, 10);
+ #else
+@@ -642,7 +648,11 @@
+ #endif
+ }
+
+- if ( (limit_item != LIMIT_LOGIN)
++ if (limit_item == LIMIT_CHROOT) {
++ strncpy(pl->chroot_dir, value_orig, sizeof(pl->chroot_dir)-1);
++ pl->chroot_dir[sizeof(pl->chroot_dir)-1]='\0';
++ }
++ else if ( (limit_item != LIMIT_LOGIN)
+ && (limit_item != LIMIT_NUMSYSLOGINS)
+ && (limit_item != LIMIT_PRI) ) {
+ if (limit_type & LIMIT_SOFT) {
+@@ -986,6 +996,15 @@
+ retval |= LOGIN_ERR;
+ }
+
++ if (!retval && pl->chroot_dir[0]) {
++ i = chdir(pl->chroot_dir);
++ if (i == 0)
++ i = chroot(pl->chroot_dir);
++ if (i == 0)
++ i = chdir("/");
++ if (i != 0)
++ retval = LIMIT_ERR;
++ }
+ return retval;
+ }
+
+Index: pam.debian/modules/pam_limits/limits.conf.5.xml
+===================================================================
+--- pam.debian.orig/modules/pam_limits/limits.conf.5.xml
++++ pam.debian/modules/pam_limits/limits.conf.5.xml
+@@ -255,6 +255,12 @@
+ (Linux 2.6.12 and higher)</para>
+ </listitem>
+ </varlistentry>
++ <varlistentry>
++ <term><option>chroot</option></term>
++ <listitem>
++ <para>the directory to chroot the user to</para>
++ </listitem>
++ </varlistentry>
+ </variablelist>
+ </listitem>
+ </varlistentry>
+Index: pam.debian/modules/pam_limits/limits.conf.5
+===================================================================
+--- pam.debian.orig/modules/pam_limits/limits.conf.5
++++ pam.debian/modules/pam_limits/limits.conf.5
+@@ -260,6 +260,11 @@
+ .RS 4
+ maximum realtime priority allowed for non\-privileged processes (Linux 2\&.6\&.12 and higher)
+ .RE
++.PP
++\fBchroot\fR
++.RS 4
++the directory to chroot the user to
++.RE
+ .RE
+ .PP
+ All items support the values
+Index: pam.debian/modules/pam_limits/limits.conf
+===================================================================
+--- pam.debian.orig/modules/pam_limits/limits.conf
++++ pam.debian/modules/pam_limits/limits.conf
+@@ -35,6 +35,7 @@
+ # - msgqueue - max memory used by POSIX message queues (bytes)
+ # - nice - max nice priority allowed to raise to values: [-20, 19]
+ # - rtprio - max realtime priority
++# - chroot - change root to directory (Debian-specific)
+ #
+ #<domain> <type> <item> <value>
+ #
+@@ -45,6 +46,7 @@
+ #@faculty soft nproc 20
+ #@faculty hard nproc 50
+ #ftp hard nproc 0
++#ftp - chroot /ftp
+ #@student - maxlogins 4
+
+ # End of file