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Add set-root-password command

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The `set-root-password` command sets up an alternate mount namespace
with a writable `/etc` directory and then runs `passwd` in it.  This
allows `passwd` to create its lock files and backup files, without
requiring that the real `/etc` to be mutable.  After `passwd` finishes
and has updated its private copy of `/etc/shadow`, the script rewrites
the real one with its contents.
This commit is contained in:
Dustin
2023-03-15 17:19:18 -05:00
parent eb8f4c3b40
commit 7c3738d067
4 changed files with 210 additions and 0 deletions
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88
repos/aimee-os/sec-policy/selinux-aimee-os/files/aimee-os.if
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@@ -45,3 +45,91 @@ interface(`aimee_os_run_system_update',`
aimee_os_system_update_domtrans($1)
role $2 types aimee_sysupdate_t;
')
########################################
## <summary>
## Execute set-root-password in the
## aimee_set_root_password_t domain.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed to transition.
## </summary>
## </param>
#
interface(`aimee_os_set_root_password_domtrans',`
gen_require(`
type aimee_set_root_password_t, aimee_set_root_password_exec_t;
')
domtrans_pattern($1, aimee_set_root_password_exec_t, aimee_set_root_password_t)
')
########################################
## <summary>
## Execute set-root-password in the
## aimee_set_root_password_t domain, and
## allow the specified role the
## aimee_set_root_password_t domain.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed to transition.
## </summary>
## </param>
## <param name="role">
## <summary>
## Role allowed access.
## </summary>
## </param>
## <rolecap/>
#
interface(`aimee_os_run_set_root_password',`
gen_require(`
type aimee_set_root_password_t;
')
aimee_os_set_root_password_domtrans($1)
role $2 types aimee_set_root_password_t;
mount_run(aimee_set_root_password_t, $2)
')
########################################
## <summary>
## Execute set-root-password in the caller
## domain.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`aimee_os_set_root_password_exec',`
gen_require(`
type aimee_set_root_password_exec_t;
')
corecmd_search_bin($1)
can_exec($1, aimee_set_root_password_exec_t)
')
########################################
## <summary>
## Create, read, write, and delete temporary
## files used by Aimee OS set-root-password.
## </summary>
## <param name="domain">
## <summary>
## Domain allowed access.
## </summary>
## </param>
#
interface(`aimee_os_manage_set_root_password_tmp_files',`
gen_require(`
type aimee_set_root_password_tmp_t;
')
manage_files_pattern($1, aimee_set_root_password_tmp_t, aimee_set_root_password_tmp_t)
read_lnk_files_pattern($1, aimee_set_root_password_tmp_t, aimee_set_root_password_tmp_t)
')