76 lines
3.3 KiB
Diff
76 lines
3.3 KiB
Diff
diff -up Linux-PAM-1.3.1/configure.ac.pam-usertype-SYS_UID_MAX Linux-PAM-1.3.1/configure.ac
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--- Linux-PAM-1.3.1/configure.ac.pam-usertype-SYS_UID_MAX 2022-06-22 16:41:09.169146826 +0200
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+++ Linux-PAM-1.3.1/configure.ac 2022-06-22 16:43:54.343373619 +0200
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@@ -615,12 +615,6 @@ if test x"$opt_uidmin" == x; then
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fi
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AC_DEFINE_UNQUOTED(PAM_USERTYPE_UIDMIN, $opt_uidmin, [Minimum regular user uid.])
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-AC_ARG_WITH([sysuidmin], AS_HELP_STRING([--with-sysuidmin=<number>],[default value for system user min uid (101)]), opt_sysuidmin=$withval)
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-if test x"$opt_sysuidmin" == x; then
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- opt_sysuidmin=101
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-fi
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-AC_DEFINE_UNQUOTED(PAM_USERTYPE_SYSUIDMIN, $opt_sysuidmin, [Minimum system user uid.])
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-
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AC_ARG_WITH([kerneloverflowuid], AS_HELP_STRING([--with-kernel-overflow-uid=<number>],[kernel overflow uid, default (uint16_t)-2=65534]), opt_kerneloverflowuid=$withval)
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if test x"$opt_kerneloverflowuid" == x; then
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opt_kerneloverflowuid=65534
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diff -up Linux-PAM-1.3.1/modules/pam_usertype/pam_usertype.8.xml.pam-usertype-SYS_UID_MAX Linux-PAM-1.3.1/modules/pam_usertype/pam_usertype.8.xml
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--- Linux-PAM-1.3.1/modules/pam_usertype/pam_usertype.8.xml.pam-usertype-SYS_UID_MAX 2022-06-22 16:41:09.155146722 +0200
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+++ Linux-PAM-1.3.1/modules/pam_usertype/pam_usertype.8.xml 2022-06-22 16:41:09.169146826 +0200
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@@ -31,7 +31,7 @@
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pam_usertype.so is designed to succeed or fail authentication
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based on type of the account of the authenticated user.
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The type of the account is decided with help of
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- <emphasis>SYS_UID_MIN</emphasis> and <emphasis>SYS_UID_MAX</emphasis>
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+ <emphasis>SYS_UID_MAX</emphasis>
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settings in <emphasis>/etc/login.defs</emphasis>. One use is to select
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whether to load other modules based on this test.
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</para>
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diff -up Linux-PAM-1.3.1/modules/pam_usertype/pam_usertype.c.pam-usertype-SYS_UID_MAX Linux-PAM-1.3.1/modules/pam_usertype/pam_usertype.c
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--- Linux-PAM-1.3.1/modules/pam_usertype/pam_usertype.c.pam-usertype-SYS_UID_MAX 2022-06-22 16:41:09.155146722 +0200
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+++ Linux-PAM-1.3.1/modules/pam_usertype/pam_usertype.c 2022-06-22 16:41:09.169146826 +0200
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@@ -277,7 +277,6 @@ static int
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pam_usertype_is_system(pam_handle_t *pamh, uid_t uid)
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{
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uid_t uid_min;
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- uid_t sys_min;
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uid_t sys_max;
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if (uid == (uid_t)-1) {
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@@ -285,21 +284,19 @@ pam_usertype_is_system(pam_handle_t *pam
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return PAM_USER_UNKNOWN;
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}
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- if (uid <= 99) {
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- /* Reserved. */
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- return PAM_SUCCESS;
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- }
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-
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if (uid == PAM_USERTYPE_OVERFLOW_UID) {
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/* nobody */
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return PAM_SUCCESS;
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}
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uid_min = pam_usertype_get_id(pamh, "UID_MIN", PAM_USERTYPE_UIDMIN);
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- sys_min = pam_usertype_get_id(pamh, "SYS_UID_MIN", PAM_USERTYPE_SYSUIDMIN);
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sys_max = pam_usertype_get_id(pamh, "SYS_UID_MAX", uid_min - 1);
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- return uid >= sys_min && uid <= sys_max ? PAM_SUCCESS : PAM_AUTH_ERR;
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+ if (uid <= sys_max && uid < uid_min) {
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+ return PAM_SUCCESS;
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+ }
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+
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+ return PAM_AUTH_ERR;
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}
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static int
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@@ -336,7 +333,7 @@ pam_usertype_evaluate(struct pam_usertyp
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/**
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* Arguments:
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- * - issystem: uid in <SYS_UID_MIN, SYS_UID_MAX>
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+ * - issystem: uid less than SYS_UID_MAX
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* - isregular: not issystem
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* - use_uid: use user that runs application not that is being authenticate (same as in pam_succeed_if)
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* - audit: log unknown users to syslog
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