- assign system dynamic UID/GID from the top of available UID/GID (#190523)
This commit is contained in:
Peter Vrabec
parent
cfdfb91d40
commit
0d450f9e24
2 changed files with 155 additions and 1 deletions
149
shadow-4.0.18.1-sysAccount.patch
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149
shadow-4.0.18.1-sysAccount.patch
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@ -0,0 +1,149 @@
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--- shadow-4.0.18.1/src/useradd.c.sysAccount 2007-03-12 10:49:14.000000000 +0100
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+++ shadow-4.0.18.1/src/useradd.c 2007-03-12 12:15:57.000000000 +0100
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@@ -854,6 +854,7 @@
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{
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const struct passwd *pwd;
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uid_t uid_min, uid_max;
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+ char * index;
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if (!rflg) {
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uid_min = getdef_unum ("UID_MIN", 500);
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@@ -862,6 +863,8 @@
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else {
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uid_min = 1;
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uid_max = getdef_unum ("UID_MIN", 500) - 1;
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+ index = alloca (sizeof (char) * uid_max +1);
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+ memset (index, 0, sizeof (char) * uid_max + 1);
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}
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/*
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@@ -901,11 +904,24 @@
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#endif
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exit (E_UID_IN_USE);
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}
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- if (!uflg && pwd->pw_uid >= user_id) {
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+ if (!uflg && !rflg && pwd->pw_uid >= user_id) {
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if (pwd->pw_uid > uid_max)
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continue;
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user_id = pwd->pw_uid + 1;
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}
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+ /* create index of occupied system accounts UIDs */
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+ if (!uflg && rflg && (pwd->pw_uid <= uid_max))
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+ index[pwd->pw_uid] = 1;
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+
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+ }
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+
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+ /* find free system account */
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+ if(!uflg && rflg) {
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+ for( user_id = uid_max; (user_id >= uid_min) && index[user_id]; user_id--);
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+ if ( user_id < uid_min ) {
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+ fprintf (stderr, _("%s: can't get unique UID\n"), Prog);
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+ fail_exit (E_UID_IN_USE);
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+ }
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}
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/*
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@@ -946,6 +962,7 @@
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{
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const struct group *grp;
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gid_t gid_min, gid_max;
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+ char * index;
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if (!rflg) {
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gid_min = getdef_unum ("GID_MIN", 500);
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@@ -953,7 +970,9 @@
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} else {
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gid_min = 1;
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gid_max = getdef_unum ("GID_MIN", 500) - 1;
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- }
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+ index = alloca (sizeof (char) * gid_max +1);
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+ memset (index, 0, sizeof (char) * gid_max + 1);
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+ }
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/*
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* Start with some GID value if the user didn't provide us with
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@@ -978,12 +997,16 @@
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user_gid = grp->gr_gid;
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return;
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}
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- if (grp->gr_gid >= user_gid) {
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+ if (!rflg && grp->gr_gid >= user_gid) {
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if (grp->gr_gid > gid_max)
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continue;
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user_gid = grp->gr_gid + 1;
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}
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+ /* create index of occupied system accounts GIDs */
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+ if (rflg && (grp->gr_gid <= gid_max))
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+ index[grp->gr_gid] = 1;
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}
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+
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#ifndef NO_GETGRENT /* glibc does have this, so ... */
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/* A quick test gets here: if the UID is available
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* as a GID, go ahead and use it */
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@@ -992,6 +1015,18 @@
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return;
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}
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#endif
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+
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+ /* find free system account */
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+ if(rflg) {
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+ for( user_gid = gid_max; (user_gid >= gid_min) && index[user_gid]; user_gid--);
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+ if ( user_gid < gid_min ) {
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+ fprintf (stderr,
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+ "%s: can't get unique gid (run out of GIDs)\n",
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+ Prog);
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+ fail_exit (4);
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+ }
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+ }
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+
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if (user_gid == gid_max + 1) {
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for (user_gid = gid_min; user_gid < gid_max; user_gid++) {
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#ifdef NO_GETGRENT
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--- shadow-4.0.18.1/src/groupadd.c.sysAccount 2007-03-12 10:49:14.000000000 +0100
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+++ shadow-4.0.18.1/src/groupadd.c 2007-03-12 10:49:14.000000000 +0100
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@@ -199,6 +199,7 @@
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{
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const struct group *grp;
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gid_t gid_min, gid_max;
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+ char * index;
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if (!rflg) {
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gid_min = getdef_unum ("GID_MIN", 500);
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@@ -206,7 +207,9 @@
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} else {
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gid_min = 1;
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gid_max = getdef_unum ("GID_MIN", 500) - 1;
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- }
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+ index = alloca (sizeof (char) * gid_max +1);
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+ memset (index, 0, sizeof (char) * gid_max + 1);
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+ }
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/*
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* Start with some GID value if the user didn't provide us with
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@@ -251,12 +254,25 @@
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Prog, (unsigned int) group_id);
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fail_exit (E_GID_IN_USE);
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}
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- if (!gflg && grp->gr_gid >= group_id) {
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+ if (!gflg && !rflg && grp->gr_gid >= group_id) {
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if (grp->gr_gid > gid_max)
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continue;
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group_id = grp->gr_gid + 1;
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}
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+ /* create index of occupied system accounts UIDs */
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+ if (!gflg && rflg && (grp->gr_gid <= gid_max))
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+ index[grp->gr_gid] = 1;
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+ }
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+
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+ /* find free system account */
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+ if(!gflg && rflg) {
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+ for( group_id = gid_max; (group_id >= gid_min) && index[group_id]; group_id--);
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+ if ( group_id < gid_min ) {
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+ fprintf (stderr, _("%s: can't get unique GID\n"), Prog);
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+ fail_exit (E_GID_IN_USE);
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+ }
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}
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+
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if (!gflg && group_id == gid_max + 1) {
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for (group_id = gid_min; group_id < gid_max; group_id++) {
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#ifdef NO_GETGRENT
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@ -5,7 +5,7 @@
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Summary: Utilities for managing accounts and shadow password files
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Name: shadow-utils
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Version: 4.0.18.1
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Release: 10%{?dist}
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Release: 11%{?dist}
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Epoch: 2
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URL: http://shadow.pld.org.pl/
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Source0: ftp://ftp.pld.org.pl/software/shadow/shadow-%{version}.tar.bz2
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@ -25,6 +25,7 @@ Patch9: shadow-4.0.18.1-gid.patch
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Patch10: shadow-4.0.18.1-overflow.patch
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Patch11: shadow-4.0.17-useradd.patch
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Patch12: shadow-4.0.18.1-appendOption.patch
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Patch13: shadow-4.0.18.1-sysAccount.patch
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License: BSD
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Group: System Environment/Base
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@ -66,6 +67,7 @@ cp %{SOURCE3} lib/nscd.c
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%patch10 -p1 -b .overflow
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%patch11 -p1 -b .useradd
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%patch12 -p1 -b .appendOption
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%patch13 -p1 -b .sysAccount
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rm po/*.gmo
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rm po/stamp-po
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@ -221,6 +223,9 @@ rm -rf $RPM_BUILD_ROOT
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%{_mandir}/*/man8/faillog.8*
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%changelog
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* Fri Mar 16 2007 Peter Vrabec <pvrabec@redhat.com> 2:4.0.18.1-11
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- assign system dynamic UID/GID from the top of available UID/GID (#190523)
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* Wed Feb 28 2007 Peter Vrabec <pvrabec@redhat.com> 2:4.0.18.1-10
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- spec file fixes to meet fedora standarts.
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- fix useless call of restorecon(). (#222159)
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