git, roles: use user exec domain attribute

Signed-off-by: Kenton Groombridge <me@concord.sh>
This commit is contained in:
Kenton Groombridge 2021-08-08 10:51:19 -04:00
parent 150353158a
commit 48a7d3db51
3 changed files with 51 additions and 27 deletions

View File

@ -28,8 +28,8 @@ optional_policy(`
')
optional_policy(`
git_client_role_template(staff, staff_r, staff_t)
git_role(staff_r, staff_t)
git_client_role_template(staff, staff_t, staff_application_exec_domain, staff_r)
git_role(staff, staff_t, staff_application_exec_domain, staff_r)
')
optional_policy(`

View File

@ -17,8 +17,8 @@ optional_policy(`
')
optional_policy(`
git_client_role_template(user, user_r, user_t)
git_role(user_r, user_t)
git_client_role_template(user, user_t, user_application_exec_domain, user_r)
git_role(user, user_t, user_application_exec_domain, user_r)
')
optional_policy(`

View File

@ -4,18 +4,29 @@
## <summary>
## Role access for Git session.
## </summary>
## <param name="role">
## <param name="role_prefix">
## <summary>
## Role allowed access.
## The prefix of the user role (e.g., user
## is the prefix for user_r).
## </summary>
## </param>
## <param name="domain">
## <param name="user_domain">
## <summary>
## User domain for the role.
## </summary>
## </param>
## <param name="user_exec_domain">
## <summary>
## User exec domain for execute and transition access.
## </summary>
## </param>
## <param name="role">
## <summary>
## Role allowed access
## </summary>
## </param>
#
interface(`git_role',`
template(`git_role',`
gen_require(`
attribute_role git_session_roles;
type git_session_t, gitd_exec_t, git_user_content_t;
@ -26,7 +37,7 @@ interface(`git_role',`
# Declarations
#
roleattribute $1 git_session_roles;
roleattribute $4 git_session_roles;
########################################
#
@ -37,13 +48,17 @@ interface(`git_role',`
allow $2 git_user_content_t:file { exec_file_perms manage_file_perms relabel_file_perms };
userdom_user_home_dir_filetrans($2, git_user_content_t, dir, "public_git")
allow $2 git_session_t:process { ptrace signal_perms };
ps_process_pattern($2, git_session_t)
allow $3 git_session_t:process { ptrace signal_perms };
ps_process_pattern($3, git_session_t)
tunable_policy(`git_session_users',`
domtrans_pattern($2, gitd_exec_t, git_session_t)
domtrans_pattern($3, gitd_exec_t, git_session_t)
',`
can_exec($2, gitd_exec_t)
can_exec($3, gitd_exec_t)
')
optional_policy(`
systemd_user_app_status($1, git_session_t)
')
')
@ -57,14 +72,19 @@ interface(`git_role',`
## is the prefix for user_r).
## </summary>
## </param>
## <param name="user_role">
## <summary>
## The role associated with the user domain.
## </summary>
## </param>
## <param name="user_domain">
## <summary>
## The type of the user domain.
## User domain for the role.
## </summary>
## </param>
## <param name="user_exec_domain">
## <summary>
## User exec domain for execute and transition access.
## </summary>
## </param>
## <param name="role">
## <summary>
## Role allowed access
## </summary>
## </param>
#
@ -81,7 +101,7 @@ template(`git_client_role_template',`
type $1_git_t, git_client_domain;
userdom_user_application_domain($1_git_t, git_exec_t)
role $2 types $1_git_t;
role $4 types $1_git_t;
########################################
#
@ -90,13 +110,13 @@ template(`git_client_role_template',`
domtrans_pattern($3, git_exec_t, $1_git_t)
allow $3 git_home_t:dir { manage_dir_perms relabel_dir_perms };
allow $3 git_home_t:file { manage_file_perms relabel_file_perms };
userdom_user_home_dir_filetrans($3, git_home_t, dir, ".git")
allow $2 git_home_t:dir { manage_dir_perms relabel_dir_perms };
allow $2 git_home_t:file { manage_file_perms relabel_file_perms };
userdom_user_home_dir_filetrans($2, git_home_t, dir, ".git")
allow $3 git_home_hook_t:dir { manage_dir_perms relabel_dir_perms };
allow $3 git_home_hook_t:file { exec_file_perms manage_file_perms relabel_file_perms };
filetrans_pattern($3, git_home_t, git_home_hook_t, dir, "hooks")
allow $2 git_home_hook_t:dir { manage_dir_perms relabel_dir_perms };
allow $2 git_home_hook_t:file { exec_file_perms manage_file_perms relabel_file_perms };
filetrans_pattern($2, git_home_t, git_home_hook_t, dir, "hooks")
allow $3 $1_git_t:process { ptrace signal_perms };
ps_process_pattern($3, $1_git_t)
@ -106,12 +126,16 @@ template(`git_client_role_template',`
# allow userdomains to exec git hooks
exec_files_pattern($3, git_home_t, git_home_t)
# transition back to the user domain when executing git hooks
domtrans_pattern($1_git_t, git_home_t, $3)
domtrans_pattern($1_git_t, git_home_t, $2)
# transition to ssh client domain when performing ssh operations
optional_policy(`
ssh_client_domtrans($1_git_t)
')
optional_policy(`
systemd_user_app_status($1, $1_git_t)
')
')
########################################