Synchronise some modifications
Co-authored-by: Ylarod <me@ylarod.cn> Co-authored-by: 5ec1cff <56485584+5ec1cff@users.noreply.github.com> Co-authored-by: backslashxx <118538522+backslashxx@users.noreply.github.com> Co-authored-by: u9521 <63995396+u9521@users.noreply.github.com> Co-authored-by: Wang Han <416810799@qq.com> Co-authored-by: ShirkNeko <109797057+ShirkNeko@users.noreply.github.com> Co-authored-by: Faris <rissu.ntk@gmail.com>
This commit is contained in:
ShirkNeko
@@ -6,7 +6,7 @@
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#include "selinux.h"
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#include "sepolicy.h"
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#include "ss/services.h"
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#include "linux/lsm_audit.h"
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#include "linux/lsm_audit.h" // IWYU pragma: keep
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#include "xfrm.h"
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(5, 10, 0)
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@@ -20,128 +20,125 @@
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static struct policydb *get_policydb(void)
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{
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struct policydb *db;
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struct policydb *db;
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// selinux_state does not exists before 4.19
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#ifdef KSU_COMPAT_USE_SELINUX_STATE
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#ifdef SELINUX_POLICY_INSTEAD_SELINUX_SS
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struct selinux_policy *policy = selinux_state.policy;
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db = &policy->policydb;
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struct selinux_policy *policy = selinux_state.policy;
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db = &policy->policydb;
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#else
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struct selinux_ss *ss = selinux_state.ss;
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db = &ss->policydb;
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struct selinux_ss *ss = selinux_state.ss;
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db = &ss->policydb;
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#endif
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#else
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db = &policydb;
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db = &policydb;
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#endif
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return db;
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return db;
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}
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static DEFINE_MUTEX(ksu_rules);
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void apply_kernelsu_rules(void)
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{
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struct policydb *db;
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struct policydb *db;
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if (!getenforce()) {
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pr_info("SELinux permissive or disabled, apply rules!\n");
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}
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if (!getenforce()) {
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pr_info("SELinux permissive or disabled, apply rules!\n");
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}
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mutex_lock(&ksu_rules);
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mutex_lock(&ksu_rules);
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db = get_policydb();
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db = get_policydb();
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ksu_permissive(db, KERNEL_SU_DOMAIN);
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ksu_typeattribute(db, KERNEL_SU_DOMAIN, "mlstrustedsubject");
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ksu_typeattribute(db, KERNEL_SU_DOMAIN, "netdomain");
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ksu_typeattribute(db, KERNEL_SU_DOMAIN, "bluetoothdomain");
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ksu_permissive(db, KERNEL_SU_DOMAIN);
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ksu_typeattribute(db, KERNEL_SU_DOMAIN, "mlstrustedsubject");
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ksu_typeattribute(db, KERNEL_SU_DOMAIN, "netdomain");
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ksu_typeattribute(db, KERNEL_SU_DOMAIN, "bluetoothdomain");
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// Create unconstrained file type
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ksu_type(db, KERNEL_SU_FILE, "file_type");
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ksu_typeattribute(db, KERNEL_SU_FILE, "mlstrustedobject");
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ksu_allow(db, ALL, KERNEL_SU_FILE, ALL, ALL);
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// Create unconstrained file type
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ksu_type(db, KERNEL_SU_FILE, "file_type");
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ksu_typeattribute(db, KERNEL_SU_FILE, "mlstrustedobject");
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ksu_allow(db, ALL, KERNEL_SU_FILE, ALL, ALL);
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// allow all!
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ksu_allow(db, KERNEL_SU_DOMAIN, ALL, ALL, ALL);
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// allow all!
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ksu_allow(db, KERNEL_SU_DOMAIN, ALL, ALL, ALL);
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// allow us do any ioctl
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if (db->policyvers >= POLICYDB_VERSION_XPERMS_IOCTL) {
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ksu_allowxperm(db, KERNEL_SU_DOMAIN, ALL, "blk_file", ALL);
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ksu_allowxperm(db, KERNEL_SU_DOMAIN, ALL, "fifo_file", ALL);
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ksu_allowxperm(db, KERNEL_SU_DOMAIN, ALL, "chr_file", ALL);
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ksu_allowxperm(db, KERNEL_SU_DOMAIN, ALL, "file", ALL);
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}
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// allow us do any ioctl
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if (db->policyvers >= POLICYDB_VERSION_XPERMS_IOCTL) {
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ksu_allowxperm(db, KERNEL_SU_DOMAIN, ALL, "blk_file", ALL);
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ksu_allowxperm(db, KERNEL_SU_DOMAIN, ALL, "fifo_file", ALL);
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ksu_allowxperm(db, KERNEL_SU_DOMAIN, ALL, "chr_file", ALL);
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ksu_allowxperm(db, KERNEL_SU_DOMAIN, ALL, "file", ALL);
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}
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// we need to save allowlist in /data/adb/ksu
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ksu_allow(db, "kernel", "adb_data_file", "dir", ALL);
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ksu_allow(db, "kernel", "adb_data_file", "file", ALL);
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// we need to search /data/app
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ksu_allow(db, "kernel", "apk_data_file", "file", "open");
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ksu_allow(db, "kernel", "apk_data_file", "dir", "open");
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ksu_allow(db, "kernel", "apk_data_file", "dir", "read");
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ksu_allow(db, "kernel", "apk_data_file", "dir", "search");
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// we may need to do mount on shell
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ksu_allow(db, "kernel", "shell_data_file", "file", ALL);
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// we need to read /data/system/packages.list
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ksu_allow(db, "kernel", "kernel", "capability", "dac_override");
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// Android 10+:
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// http://aospxref.com/android-12.0.0_r3/xref/system/sepolicy/private/file_contexts#512
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ksu_allow(db, "kernel", "packages_list_file", "file", ALL);
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// Kernel 4.4
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ksu_allow(db, "kernel", "packages_list_file", "dir", ALL);
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// Android 9-:
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// http://aospxref.com/android-9.0.0_r61/xref/system/sepolicy/private/file_contexts#360
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ksu_allow(db, "kernel", "system_data_file", "file", ALL);
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ksu_allow(db, "kernel", "system_data_file", "dir", ALL);
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// our ksud triggered by init
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ksu_allow(db, "init", "adb_data_file", "file", ALL);
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ksu_allow(db, "init", "adb_data_file", "dir", ALL); // #1289
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ksu_allow(db, "init", KERNEL_SU_DOMAIN, ALL, ALL);
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// we need to save allowlist in /data/adb/ksu
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ksu_allow(db, "kernel", "adb_data_file", "dir", ALL);
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ksu_allow(db, "kernel", "adb_data_file", "file", ALL);
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// we need to search /data/app
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ksu_allow(db, "kernel", "apk_data_file", "file", "open");
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ksu_allow(db, "kernel", "apk_data_file", "dir", "open");
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ksu_allow(db, "kernel", "apk_data_file", "dir", "read");
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ksu_allow(db, "kernel", "apk_data_file", "dir", "search");
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// we may need to do mount on shell
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ksu_allow(db, "kernel", "shell_data_file", "file", ALL);
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// we need to read /data/system/packages.list
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ksu_allow(db, "kernel", "kernel", "capability", "dac_override");
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// Android 10+:
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// http://aospxref.com/android-12.0.0_r3/xref/system/sepolicy/private/file_contexts#512
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ksu_allow(db, "kernel", "packages_list_file", "file", ALL);
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// Kernel 4.4
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ksu_allow(db, "kernel", "packages_list_file", "dir", ALL);
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// Android 9-:
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// http://aospxref.com/android-9.0.0_r61/xref/system/sepolicy/private/file_contexts#360
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ksu_allow(db, "kernel", "system_data_file", "file", ALL);
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ksu_allow(db, "kernel", "system_data_file", "dir", ALL);
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// our ksud triggered by init
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ksu_allow(db, "init", "adb_data_file", "file", ALL);
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ksu_allow(db, "init", "adb_data_file", "dir", ALL); // #1289
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ksu_allow(db, "init", KERNEL_SU_DOMAIN, ALL, ALL);
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// we need to umount modules in zygote
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ksu_allow(db, "zygote", "adb_data_file", "dir", "search");
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// we need to umount modules in zygote
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ksu_allow(db, "zygote", "adb_data_file", "dir", "search");
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// copied from Magisk rules
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// suRights
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ksu_allow(db, "servicemanager", KERNEL_SU_DOMAIN, "dir", "search");
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ksu_allow(db, "servicemanager", KERNEL_SU_DOMAIN, "dir", "read");
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ksu_allow(db, "servicemanager", KERNEL_SU_DOMAIN, "file", "open");
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ksu_allow(db, "servicemanager", KERNEL_SU_DOMAIN, "file", "read");
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ksu_allow(db, "servicemanager", KERNEL_SU_DOMAIN, "process", "getattr");
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ksu_allow(db, ALL, KERNEL_SU_DOMAIN, "process", "sigchld");
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// copied from Magisk rules
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// suRights
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ksu_allow(db, "servicemanager", KERNEL_SU_DOMAIN, "dir", "search");
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ksu_allow(db, "servicemanager", KERNEL_SU_DOMAIN, "dir", "read");
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ksu_allow(db, "servicemanager", KERNEL_SU_DOMAIN, "file", "open");
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ksu_allow(db, "servicemanager", KERNEL_SU_DOMAIN, "file", "read");
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ksu_allow(db, "servicemanager", KERNEL_SU_DOMAIN, "process", "getattr");
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ksu_allow(db, ALL, KERNEL_SU_DOMAIN, "process", "sigchld");
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// allowLog
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ksu_allow(db, "logd", KERNEL_SU_DOMAIN, "dir", "search");
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ksu_allow(db, "logd", KERNEL_SU_DOMAIN, "file", "read");
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ksu_allow(db, "logd", KERNEL_SU_DOMAIN, "file", "open");
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ksu_allow(db, "logd", KERNEL_SU_DOMAIN, "file", "getattr");
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// allowLog
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ksu_allow(db, "logd", KERNEL_SU_DOMAIN, "dir", "search");
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ksu_allow(db, "logd", KERNEL_SU_DOMAIN, "file", "read");
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ksu_allow(db, "logd", KERNEL_SU_DOMAIN, "file", "open");
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ksu_allow(db, "logd", KERNEL_SU_DOMAIN, "file", "getattr");
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// dumpsys
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ksu_allow(db, ALL, KERNEL_SU_DOMAIN, "fd", "use");
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ksu_allow(db, ALL, KERNEL_SU_DOMAIN, "fifo_file", "write");
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ksu_allow(db, ALL, KERNEL_SU_DOMAIN, "fifo_file", "read");
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ksu_allow(db, ALL, KERNEL_SU_DOMAIN, "fifo_file", "open");
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ksu_allow(db, ALL, KERNEL_SU_DOMAIN, "fifo_file", "getattr");
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// dumpsys
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ksu_allow(db, ALL, KERNEL_SU_DOMAIN, "fd", "use");
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ksu_allow(db, ALL, KERNEL_SU_DOMAIN, "fifo_file", "write");
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ksu_allow(db, ALL, KERNEL_SU_DOMAIN, "fifo_file", "read");
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ksu_allow(db, ALL, KERNEL_SU_DOMAIN, "fifo_file", "open");
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ksu_allow(db, ALL, KERNEL_SU_DOMAIN, "fifo_file", "getattr");
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// bootctl
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ksu_allow(db, "hwservicemanager", KERNEL_SU_DOMAIN, "dir", "search");
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ksu_allow(db, "hwservicemanager", KERNEL_SU_DOMAIN, "file", "read");
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ksu_allow(db, "hwservicemanager", KERNEL_SU_DOMAIN, "file", "open");
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ksu_allow(db, "hwservicemanager", KERNEL_SU_DOMAIN, "process",
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"getattr");
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// bootctl
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ksu_allow(db, "hwservicemanager", KERNEL_SU_DOMAIN, "dir", "search");
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ksu_allow(db, "hwservicemanager", KERNEL_SU_DOMAIN, "file", "read");
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ksu_allow(db, "hwservicemanager", KERNEL_SU_DOMAIN, "file", "open");
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ksu_allow(db, "hwservicemanager", KERNEL_SU_DOMAIN, "process",
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"getattr");
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// For mounting loop devices, mirrors, tmpfs
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ksu_allow(db, "kernel", ALL, "file", "read");
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ksu_allow(db, "kernel", ALL, "file", "write");
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// For mounting loop devices, mirrors, tmpfs
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ksu_allow(db, "kernel", ALL, "file", "read");
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ksu_allow(db, "kernel", ALL, "file", "write");
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// Allow all binder transactions
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ksu_allow(db, ALL, KERNEL_SU_DOMAIN, "binder", ALL);
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// Allow system server kill su process
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ksu_allow(db, "system_server", KERNEL_SU_DOMAIN, "process", "getpgid");
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ksu_allow(db, "system_server", KERNEL_SU_DOMAIN, "process", "sigkill");
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// https://android-review.googlesource.com/c/platform/system/logging/+/3725346
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ksu_dontaudit(db, "untrusted_app", KERNEL_SU_DOMAIN, "dir", "getattr");
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// Allow all binder transactions
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ksu_allow(db, ALL, KERNEL_SU_DOMAIN, "binder", ALL);
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// Allow system server kill su process
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ksu_allow(db, "system_server", KERNEL_SU_DOMAIN, "process", "getpgid");
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ksu_allow(db, "system_server", KERNEL_SU_DOMAIN, "process", "sigkill");
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#ifdef CONFIG_KSU_SUSFS
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// Allow umount in zygote process without installing zygisk
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ksu_allow(db, "zygote", "labeledfs", "filesystem", "unmount");
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@@ -150,8 +147,7 @@ void apply_kernelsu_rules(void)
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susfs_set_ksu_sid();
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susfs_set_zygote_sid();
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#endif
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mutex_unlock(&ksu_rules);
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mutex_unlock(&ksu_rules);
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}
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#define MAX_SEPOL_LEN 128
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@@ -167,372 +163,369 @@ void apply_kernelsu_rules(void)
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#define CMD_GENFSCON 9
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struct sepol_data {
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uint32_t cmd;
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uint32_t subcmd;
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uint64_t sepol1;
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uint64_t sepol2;
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uint64_t sepol3;
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uint64_t sepol4;
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uint64_t sepol5;
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uint64_t sepol6;
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uint64_t sepol7;
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u32 cmd;
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u32 subcmd;
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u64 sepol1;
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u64 sepol2;
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u64 sepol3;
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u64 sepol4;
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u64 sepol5;
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u64 sepol6;
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u64 sepol7;
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};
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static int get_object(char *buf, char __user *user_object, size_t buf_sz,
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char **object)
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char **object)
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{
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if (!user_object) {
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*object = ALL;
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return 0;
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}
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if (!user_object) {
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*object = ALL;
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return 0;
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}
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if (strncpy_from_user(buf, user_object, buf_sz) < 0) {
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return -EINVAL;
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}
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if (strncpy_from_user(buf, user_object, buf_sz) < 0) {
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return -EINVAL;
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}
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*object = buf;
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*object = buf;
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return 0;
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return 0;
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}
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 4, 0) || \
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!defined(KSU_COMPAT_USE_SELINUX_STATE)
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!defined(KSU_COMPAT_USE_SELINUX_STATE)
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extern int avc_ss_reset(u32 seqno);
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#else
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extern int avc_ss_reset(struct selinux_avc *avc, u32 seqno);
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#endif
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// reset avc cache table, otherwise the new rules will not take effect if already denied
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static void reset_avc_cache(void)
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{
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 4, 0) || \
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!defined(KSU_COMPAT_USE_SELINUX_STATE)
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avc_ss_reset(0);
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selnl_notify_policyload(0);
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selinux_status_update_policyload(0);
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!defined(KSU_COMPAT_USE_SELINUX_STATE)
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avc_ss_reset(0);
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selnl_notify_policyload(0);
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selinux_status_update_policyload(0);
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#else
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struct selinux_avc *avc = selinux_state.avc;
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avc_ss_reset(avc, 0);
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selnl_notify_policyload(0);
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selinux_status_update_policyload(&selinux_state, 0);
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struct selinux_avc *avc = selinux_state.avc;
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avc_ss_reset(avc, 0);
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selnl_notify_policyload(0);
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selinux_status_update_policyload(&selinux_state, 0);
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#endif
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selinux_xfrm_notify_policyload();
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selinux_xfrm_notify_policyload();
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}
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int handle_sepolicy(unsigned long arg3, void __user *arg4)
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{
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struct policydb *db;
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struct policydb *db;
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if (!arg4) {
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return -EINVAL;
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}
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if (!arg4) {
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return -EINVAL;
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}
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if (!getenforce()) {
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pr_info("SELinux permissive or disabled when handle policy!\n");
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}
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if (!getenforce()) {
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pr_info("SELinux permissive or disabled when handle policy!\n");
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}
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struct sepol_data data = { 0 };
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if (copy_from_user(&data, arg4, sizeof(struct sepol_data))) {
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pr_err("sepol: copy sepol_data failed.\n");
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return -EINVAL;
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}
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struct sepol_data data;
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if (copy_from_user(&data, arg4, sizeof(struct sepol_data))) {
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pr_err("sepol: copy sepol_data failed.\n");
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return -EINVAL;
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}
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u32 cmd = data.cmd;
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u32 subcmd = data.subcmd;
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u32 cmd = data.cmd;
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u32 subcmd = data.subcmd;
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mutex_lock(&ksu_rules);
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mutex_lock(&ksu_rules);
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db = get_policydb();
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db = get_policydb();
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int ret = -EINVAL;
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int ret = -EINVAL;
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switch (cmd) {
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case CMD_NORMAL_PERM: {
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char src_buf[MAX_SEPOL_LEN];
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char tgt_buf[MAX_SEPOL_LEN];
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char cls_buf[MAX_SEPOL_LEN];
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char perm_buf[MAX_SEPOL_LEN];
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|
||||
switch (cmd) {
|
||||
case CMD_NORMAL_PERM: {
|
||||
char src_buf[MAX_SEPOL_LEN];
|
||||
char tgt_buf[MAX_SEPOL_LEN];
|
||||
char cls_buf[MAX_SEPOL_LEN];
|
||||
char perm_buf[MAX_SEPOL_LEN];
|
||||
char *s, *t, *c, *p;
|
||||
if (get_object(src_buf, (void __user *)data.sepol1,
|
||||
sizeof(src_buf), &s) < 0) {
|
||||
pr_err("sepol: copy src failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
|
||||
char *s, *t, *c, *p;
|
||||
if (get_object(src_buf, (void __user *)data.sepol1,
|
||||
sizeof(src_buf), &s) < 0) {
|
||||
pr_err("sepol: copy src failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (get_object(tgt_buf, (void __user *)data.sepol2,
|
||||
sizeof(tgt_buf), &t) < 0) {
|
||||
pr_err("sepol: copy tgt failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
|
||||
if (get_object(tgt_buf, (void __user *)data.sepol2,
|
||||
sizeof(tgt_buf), &t) < 0) {
|
||||
pr_err("sepol: copy tgt failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (get_object(cls_buf, (void __user *)data.sepol3,
|
||||
sizeof(cls_buf), &c) < 0) {
|
||||
pr_err("sepol: copy cls failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
|
||||
if (get_object(cls_buf, (void __user *)data.sepol3,
|
||||
sizeof(cls_buf), &c) < 0) {
|
||||
pr_err("sepol: copy cls failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (get_object(perm_buf, (void __user *)data.sepol4,
|
||||
sizeof(perm_buf), &p) < 0) {
|
||||
pr_err("sepol: copy perm failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
|
||||
if (get_object(perm_buf, (void __user *)data.sepol4,
|
||||
sizeof(perm_buf), &p) < 0) {
|
||||
pr_err("sepol: copy perm failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
bool success = false;
|
||||
|
||||
bool success = false;
|
||||
if (subcmd == 1) {
|
||||
success = ksu_allow(db, s, t, c, p);
|
||||
} else if (subcmd == 2) {
|
||||
success = ksu_deny(db, s, t, c, p);
|
||||
} else if (subcmd == 3) {
|
||||
success = ksu_auditallow(db, s, t, c, p);
|
||||
} else if (subcmd == 4) {
|
||||
success = ksu_dontaudit(db, s, t, c, p);
|
||||
} else {
|
||||
pr_err("sepol: unknown subcmd: %d\n", subcmd);
|
||||
}
|
||||
ret = success ? 0 : -EINVAL;
|
||||
break;
|
||||
}
|
||||
case CMD_XPERM: {
|
||||
char src_buf[MAX_SEPOL_LEN];
|
||||
char tgt_buf[MAX_SEPOL_LEN];
|
||||
char cls_buf[MAX_SEPOL_LEN];
|
||||
|
||||
if (subcmd == 1) {
|
||||
success = ksu_allow(db, s, t, c, p);
|
||||
} else if (subcmd == 2) {
|
||||
success = ksu_deny(db, s, t, c, p);
|
||||
} else if (subcmd == 3) {
|
||||
success = ksu_auditallow(db, s, t, c, p);
|
||||
} else if (subcmd == 4) {
|
||||
success = ksu_dontaudit(db, s, t, c, p);
|
||||
} else {
|
||||
pr_err("sepol: unknown subcmd: %d\n", subcmd);
|
||||
}
|
||||
ret = success ? 0 : -EINVAL;
|
||||
break;
|
||||
}
|
||||
case CMD_XPERM: {
|
||||
char src_buf[MAX_SEPOL_LEN];
|
||||
char tgt_buf[MAX_SEPOL_LEN];
|
||||
char cls_buf[MAX_SEPOL_LEN];
|
||||
char __maybe_unused
|
||||
operation[MAX_SEPOL_LEN]; // it is always ioctl now!
|
||||
char perm_set[MAX_SEPOL_LEN];
|
||||
|
||||
char __maybe_unused
|
||||
operation[MAX_SEPOL_LEN]; // it is always ioctl now!
|
||||
char perm_set[MAX_SEPOL_LEN];
|
||||
char *s, *t, *c;
|
||||
if (get_object(src_buf, (void __user *)data.sepol1,
|
||||
sizeof(src_buf), &s) < 0) {
|
||||
pr_err("sepol: copy src failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (get_object(tgt_buf, (void __user *)data.sepol2,
|
||||
sizeof(tgt_buf), &t) < 0) {
|
||||
pr_err("sepol: copy tgt failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (get_object(cls_buf, (void __user *)data.sepol3,
|
||||
sizeof(cls_buf), &c) < 0) {
|
||||
pr_err("sepol: copy cls failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(operation, (void __user *)data.sepol4,
|
||||
sizeof(operation)) < 0) {
|
||||
pr_err("sepol: copy operation failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(perm_set, (void __user *)data.sepol5,
|
||||
sizeof(perm_set)) < 0) {
|
||||
pr_err("sepol: copy perm_set failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
|
||||
char *s, *t, *c;
|
||||
if (get_object(src_buf, (void __user *)data.sepol1,
|
||||
sizeof(src_buf), &s) < 0) {
|
||||
pr_err("sepol: copy src failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (get_object(tgt_buf, (void __user *)data.sepol2,
|
||||
sizeof(tgt_buf), &t) < 0) {
|
||||
pr_err("sepol: copy tgt failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (get_object(cls_buf, (void __user *)data.sepol3,
|
||||
sizeof(cls_buf), &c) < 0) {
|
||||
pr_err("sepol: copy cls failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(operation, (void __user *)data.sepol4,
|
||||
sizeof(operation)) < 0) {
|
||||
pr_err("sepol: copy operation failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(perm_set, (void __user *)data.sepol5,
|
||||
sizeof(perm_set)) < 0) {
|
||||
pr_err("sepol: copy perm_set failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
bool success = false;
|
||||
if (subcmd == 1) {
|
||||
success = ksu_allowxperm(db, s, t, c, perm_set);
|
||||
} else if (subcmd == 2) {
|
||||
success = ksu_auditallowxperm(db, s, t, c, perm_set);
|
||||
} else if (subcmd == 3) {
|
||||
success = ksu_dontauditxperm(db, s, t, c, perm_set);
|
||||
} else {
|
||||
pr_err("sepol: unknown subcmd: %d\n", subcmd);
|
||||
}
|
||||
ret = success ? 0 : -EINVAL;
|
||||
break;
|
||||
}
|
||||
case CMD_TYPE_STATE: {
|
||||
char src[MAX_SEPOL_LEN];
|
||||
|
||||
bool success = false;
|
||||
if (subcmd == 1) {
|
||||
success = ksu_allowxperm(db, s, t, c, perm_set);
|
||||
} else if (subcmd == 2) {
|
||||
success = ksu_auditallowxperm(db, s, t, c, perm_set);
|
||||
} else if (subcmd == 3) {
|
||||
success = ksu_dontauditxperm(db, s, t, c, perm_set);
|
||||
} else {
|
||||
pr_err("sepol: unknown subcmd: %d\n", subcmd);
|
||||
}
|
||||
ret = success ? 0 : -EINVAL;
|
||||
break;
|
||||
}
|
||||
case CMD_TYPE_STATE: {
|
||||
char src[MAX_SEPOL_LEN];
|
||||
if (strncpy_from_user(src, (void __user *)data.sepol1,
|
||||
sizeof(src)) < 0) {
|
||||
pr_err("sepol: copy src failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
|
||||
if (strncpy_from_user(src, (void __user *)data.sepol1,
|
||||
sizeof(src)) < 0) {
|
||||
pr_err("sepol: copy src failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
bool success = false;
|
||||
if (subcmd == 1) {
|
||||
success = ksu_permissive(db, src);
|
||||
} else if (subcmd == 2) {
|
||||
success = ksu_enforce(db, src);
|
||||
} else {
|
||||
pr_err("sepol: unknown subcmd: %d\n", subcmd);
|
||||
}
|
||||
if (success)
|
||||
ret = 0;
|
||||
break;
|
||||
}
|
||||
case CMD_TYPE:
|
||||
case CMD_TYPE_ATTR: {
|
||||
char type[MAX_SEPOL_LEN];
|
||||
char attr[MAX_SEPOL_LEN];
|
||||
|
||||
bool success = false;
|
||||
if (subcmd == 1) {
|
||||
success = ksu_permissive(db, src);
|
||||
} else if (subcmd == 2) {
|
||||
success = ksu_enforce(db, src);
|
||||
} else {
|
||||
pr_err("sepol: unknown subcmd: %d\n", subcmd);
|
||||
}
|
||||
if (success)
|
||||
ret = 0;
|
||||
break;
|
||||
}
|
||||
case CMD_TYPE:
|
||||
case CMD_TYPE_ATTR: {
|
||||
char type[MAX_SEPOL_LEN];
|
||||
char attr[MAX_SEPOL_LEN];
|
||||
if (strncpy_from_user(type, (void __user *)data.sepol1,
|
||||
sizeof(type)) < 0) {
|
||||
pr_err("sepol: copy type failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(attr, (void __user *)data.sepol2,
|
||||
sizeof(attr)) < 0) {
|
||||
pr_err("sepol: copy attr failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
|
||||
if (strncpy_from_user(type, (void __user *)data.sepol1,
|
||||
sizeof(type)) < 0) {
|
||||
pr_err("sepol: copy type failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(attr, (void __user *)data.sepol2,
|
||||
sizeof(attr)) < 0) {
|
||||
pr_err("sepol: copy attr failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
bool success = false;
|
||||
if (cmd == CMD_TYPE) {
|
||||
success = ksu_type(db, type, attr);
|
||||
} else {
|
||||
success = ksu_typeattribute(db, type, attr);
|
||||
}
|
||||
if (!success) {
|
||||
pr_err("sepol: %d failed.\n", cmd);
|
||||
goto exit;
|
||||
}
|
||||
ret = 0;
|
||||
break;
|
||||
}
|
||||
case CMD_ATTR: {
|
||||
char attr[MAX_SEPOL_LEN];
|
||||
|
||||
bool success = false;
|
||||
if (cmd == CMD_TYPE) {
|
||||
success = ksu_type(db, type, attr);
|
||||
} else {
|
||||
success = ksu_typeattribute(db, type, attr);
|
||||
}
|
||||
if (!success) {
|
||||
pr_err("sepol: %d failed.\n", cmd);
|
||||
goto exit;
|
||||
}
|
||||
ret = 0;
|
||||
break;
|
||||
}
|
||||
case CMD_ATTR: {
|
||||
char attr[MAX_SEPOL_LEN];
|
||||
if (strncpy_from_user(attr, (void __user *)data.sepol1,
|
||||
sizeof(attr)) < 0) {
|
||||
pr_err("sepol: copy attr failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (!ksu_attribute(db, attr)) {
|
||||
pr_err("sepol: %d failed.\n", cmd);
|
||||
goto exit;
|
||||
}
|
||||
ret = 0;
|
||||
break;
|
||||
}
|
||||
case CMD_TYPE_TRANSITION: {
|
||||
char src[MAX_SEPOL_LEN];
|
||||
char tgt[MAX_SEPOL_LEN];
|
||||
char cls[MAX_SEPOL_LEN];
|
||||
char default_type[MAX_SEPOL_LEN];
|
||||
char object[MAX_SEPOL_LEN];
|
||||
|
||||
if (strncpy_from_user(attr, (void __user *)data.sepol1,
|
||||
sizeof(attr)) < 0) {
|
||||
pr_err("sepol: copy attr failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (!ksu_attribute(db, attr)) {
|
||||
pr_err("sepol: %d failed.\n", cmd);
|
||||
goto exit;
|
||||
}
|
||||
ret = 0;
|
||||
break;
|
||||
}
|
||||
case CMD_TYPE_TRANSITION: {
|
||||
char src[MAX_SEPOL_LEN];
|
||||
char tgt[MAX_SEPOL_LEN];
|
||||
char cls[MAX_SEPOL_LEN];
|
||||
char default_type[MAX_SEPOL_LEN];
|
||||
char object[MAX_SEPOL_LEN];
|
||||
if (strncpy_from_user(src, (void __user *)data.sepol1,
|
||||
sizeof(src)) < 0) {
|
||||
pr_err("sepol: copy src failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(tgt, (void __user *)data.sepol2,
|
||||
sizeof(tgt)) < 0) {
|
||||
pr_err("sepol: copy tgt failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(cls, (void __user *)data.sepol3,
|
||||
sizeof(cls)) < 0) {
|
||||
pr_err("sepol: copy cls failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(default_type, (void __user *)data.sepol4,
|
||||
sizeof(default_type)) < 0) {
|
||||
pr_err("sepol: copy default_type failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
char *real_object;
|
||||
if ((void __user *)data.sepol5 == NULL) {
|
||||
real_object = NULL;
|
||||
} else {
|
||||
if (strncpy_from_user(object,
|
||||
(void __user *)data.sepol5,
|
||||
sizeof(object)) < 0) {
|
||||
pr_err("sepol: copy object failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
real_object = object;
|
||||
}
|
||||
|
||||
if (strncpy_from_user(src, (void __user *)data.sepol1,
|
||||
sizeof(src)) < 0) {
|
||||
pr_err("sepol: copy src failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(tgt, (void __user *)data.sepol2,
|
||||
sizeof(tgt)) < 0) {
|
||||
pr_err("sepol: copy tgt failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(cls, (void __user *)data.sepol3,
|
||||
sizeof(cls)) < 0) {
|
||||
pr_err("sepol: copy cls failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(default_type, (void __user *)data.sepol4,
|
||||
sizeof(default_type)) < 0) {
|
||||
pr_err("sepol: copy default_type failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
char *real_object;
|
||||
if ((void __user *)data.sepol5 == NULL) {
|
||||
real_object = NULL;
|
||||
} else {
|
||||
if (strncpy_from_user(object,
|
||||
(void __user *)data.sepol5,
|
||||
sizeof(object)) < 0) {
|
||||
pr_err("sepol: copy object failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
real_object = object;
|
||||
}
|
||||
bool success = ksu_type_transition(db, src, tgt, cls,
|
||||
default_type, real_object);
|
||||
if (success)
|
||||
ret = 0;
|
||||
break;
|
||||
}
|
||||
case CMD_TYPE_CHANGE: {
|
||||
char src[MAX_SEPOL_LEN];
|
||||
char tgt[MAX_SEPOL_LEN];
|
||||
char cls[MAX_SEPOL_LEN];
|
||||
char default_type[MAX_SEPOL_LEN];
|
||||
|
||||
bool success = ksu_type_transition(db, src, tgt, cls,
|
||||
default_type, real_object);
|
||||
if (success)
|
||||
ret = 0;
|
||||
break;
|
||||
}
|
||||
case CMD_TYPE_CHANGE: {
|
||||
char src[MAX_SEPOL_LEN];
|
||||
char tgt[MAX_SEPOL_LEN];
|
||||
char cls[MAX_SEPOL_LEN];
|
||||
char default_type[MAX_SEPOL_LEN];
|
||||
if (strncpy_from_user(src, (void __user *)data.sepol1,
|
||||
sizeof(src)) < 0) {
|
||||
pr_err("sepol: copy src failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(tgt, (void __user *)data.sepol2,
|
||||
sizeof(tgt)) < 0) {
|
||||
pr_err("sepol: copy tgt failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(cls, (void __user *)data.sepol3,
|
||||
sizeof(cls)) < 0) {
|
||||
pr_err("sepol: copy cls failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(default_type, (void __user *)data.sepol4,
|
||||
sizeof(default_type)) < 0) {
|
||||
pr_err("sepol: copy default_type failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
bool success = false;
|
||||
if (subcmd == 1) {
|
||||
success = ksu_type_change(db, src, tgt, cls,
|
||||
default_type);
|
||||
} else if (subcmd == 2) {
|
||||
success = ksu_type_member(db, src, tgt, cls,
|
||||
default_type);
|
||||
} else {
|
||||
pr_err("sepol: unknown subcmd: %d\n", subcmd);
|
||||
}
|
||||
if (success)
|
||||
ret = 0;
|
||||
break;
|
||||
}
|
||||
case CMD_GENFSCON: {
|
||||
char name[MAX_SEPOL_LEN];
|
||||
char path[MAX_SEPOL_LEN];
|
||||
char context[MAX_SEPOL_LEN];
|
||||
if (strncpy_from_user(name, (void __user *)data.sepol1,
|
||||
sizeof(name)) < 0) {
|
||||
pr_err("sepol: copy name failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(path, (void __user *)data.sepol2,
|
||||
sizeof(path)) < 0) {
|
||||
pr_err("sepol: copy path failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(context, (void __user *)data.sepol3,
|
||||
sizeof(context)) < 0) {
|
||||
pr_err("sepol: copy context failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
|
||||
if (strncpy_from_user(src, (void __user *)data.sepol1,
|
||||
sizeof(src)) < 0) {
|
||||
pr_err("sepol: copy src failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(tgt, (void __user *)data.sepol2,
|
||||
sizeof(tgt)) < 0) {
|
||||
pr_err("sepol: copy tgt failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(cls, (void __user *)data.sepol3,
|
||||
sizeof(cls)) < 0) {
|
||||
pr_err("sepol: copy cls failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(default_type, (void __user *)data.sepol4,
|
||||
sizeof(default_type)) < 0) {
|
||||
pr_err("sepol: copy default_type failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
bool success = false;
|
||||
if (subcmd == 1) {
|
||||
success = ksu_type_change(db, src, tgt, cls,
|
||||
default_type);
|
||||
} else if (subcmd == 2) {
|
||||
success = ksu_type_member(db, src, tgt, cls,
|
||||
default_type);
|
||||
} else {
|
||||
pr_err("sepol: unknown subcmd: %d\n", subcmd);
|
||||
}
|
||||
if (success)
|
||||
ret = 0;
|
||||
break;
|
||||
}
|
||||
case CMD_GENFSCON: {
|
||||
char name[MAX_SEPOL_LEN];
|
||||
char path[MAX_SEPOL_LEN];
|
||||
char context[MAX_SEPOL_LEN];
|
||||
if (strncpy_from_user(name, (void __user *)data.sepol1,
|
||||
sizeof(name)) < 0) {
|
||||
pr_err("sepol: copy name failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(path, (void __user *)data.sepol2,
|
||||
sizeof(path)) < 0) {
|
||||
pr_err("sepol: copy path failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
if (strncpy_from_user(context, (void __user *)data.sepol3,
|
||||
sizeof(context)) < 0) {
|
||||
pr_err("sepol: copy context failed.\n");
|
||||
goto exit;
|
||||
}
|
||||
|
||||
if (!ksu_genfscon(db, name, path, context)) {
|
||||
pr_err("sepol: %d failed.\n", cmd);
|
||||
goto exit;
|
||||
}
|
||||
ret = 0;
|
||||
break;
|
||||
}
|
||||
default: {
|
||||
pr_err("sepol: unknown cmd: %d\n", cmd);
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (!ksu_genfscon(db, name, path, context)) {
|
||||
pr_err("sepol: %d failed.\n", cmd);
|
||||
goto exit;
|
||||
}
|
||||
ret = 0;
|
||||
break;
|
||||
}
|
||||
default: {
|
||||
pr_err("sepol: unknown cmd: %d\n", cmd);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
exit:
|
||||
mutex_unlock(&ksu_rules);
|
||||
mutex_unlock(&ksu_rules);
|
||||
|
||||
// only allow and xallow needs to reset avc cache, but we cannot do that because
|
||||
// we are in atomic context. so we just reset it every time.
|
||||
reset_avc_cache();
|
||||
// only allow and xallow needs to reset avc cache, but we cannot do that because
|
||||
// we are in atomic context. so we just reset it every time.
|
||||
reset_avc_cache();
|
||||
|
||||
return ret;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
@@ -1,6 +1,7 @@
|
||||
#include "linux/cred.h"
|
||||
#include "linux/sched.h"
|
||||
#include <linux/version.h>
|
||||
#include "linux/security.h"
|
||||
#include "linux/version.h"
|
||||
#include "selinux_defs.h"
|
||||
#include "../klog.h" // IWYU pragma: keep
|
||||
|
||||
@@ -8,163 +9,178 @@
|
||||
|
||||
static int transive_to_domain(const char *domain)
|
||||
{
|
||||
struct cred *cred;
|
||||
struct task_security_struct *tsec;
|
||||
u32 sid;
|
||||
int error;
|
||||
struct cred *cred;
|
||||
struct task_security_struct *tsec;
|
||||
u32 sid;
|
||||
int error;
|
||||
|
||||
cred = (struct cred *)__task_cred(current);
|
||||
cred = (struct cred *)__task_cred(current);
|
||||
|
||||
tsec = cred->security;
|
||||
if (!tsec) {
|
||||
pr_err("tsec == NULL!\n");
|
||||
return -1;
|
||||
}
|
||||
tsec = cred->security;
|
||||
if (!tsec) {
|
||||
pr_err("tsec == NULL!\n");
|
||||
return -1;
|
||||
}
|
||||
|
||||
error = security_secctx_to_secid(domain, strlen(domain), &sid);
|
||||
if (error) {
|
||||
pr_info("security_secctx_to_secid %s -> sid: %d, error: %d\n",
|
||||
domain, sid, error);
|
||||
}
|
||||
|
||||
if (!error) {
|
||||
tsec->sid = sid;
|
||||
tsec->create_sid = 0;
|
||||
tsec->keycreate_sid = 0;
|
||||
tsec->sockcreate_sid = 0;
|
||||
}
|
||||
|
||||
return error;
|
||||
error = security_secctx_to_secid(domain, strlen(domain), &sid);
|
||||
if (error) {
|
||||
pr_info("security_secctx_to_secid %s -> sid: %d, error: %d\n",
|
||||
domain, sid, error);
|
||||
}
|
||||
if (!error) {
|
||||
tsec->sid = sid;
|
||||
tsec->create_sid = 0;
|
||||
tsec->keycreate_sid = 0;
|
||||
tsec->sockcreate_sid = 0;
|
||||
}
|
||||
return error;
|
||||
}
|
||||
|
||||
#if LINUX_VERSION_CODE <= KERNEL_VERSION(4, 19, 0)
|
||||
bool __maybe_unused is_ksu_transition(const struct task_security_struct *old_tsec,
|
||||
const struct task_security_struct *new_tsec)
|
||||
bool __maybe_unused
|
||||
is_ksu_transition(const struct task_security_struct *old_tsec,
|
||||
const struct task_security_struct *new_tsec)
|
||||
{
|
||||
static u32 ksu_sid;
|
||||
char *secdata;
|
||||
u32 seclen;
|
||||
bool allowed = false;
|
||||
static u32 ksu_sid;
|
||||
char *secdata;
|
||||
u32 seclen;
|
||||
bool allowed = false;
|
||||
|
||||
if (!ksu_sid)
|
||||
security_secctx_to_secid(KERNEL_SU_DOMAIN, strlen(KERNEL_SU_DOMAIN), &ksu_sid);
|
||||
if (!ksu_sid)
|
||||
security_secctx_to_secid(KERNEL_SU_DOMAIN,
|
||||
strlen(KERNEL_SU_DOMAIN), &ksu_sid);
|
||||
|
||||
if (security_secid_to_secctx(old_tsec->sid, &secdata, &seclen))
|
||||
return false;
|
||||
if (security_secid_to_secctx(old_tsec->sid, &secdata, &seclen))
|
||||
return false;
|
||||
|
||||
allowed = (!strcmp("u:r:init:s0", secdata) && new_tsec->sid == ksu_sid);
|
||||
security_release_secctx(secdata, seclen);
|
||||
return allowed;
|
||||
allowed = (!strcmp("u:r:init:s0", secdata) && new_tsec->sid == ksu_sid);
|
||||
security_release_secctx(secdata, seclen);
|
||||
return allowed;
|
||||
}
|
||||
#endif
|
||||
|
||||
|
||||
void setup_selinux(const char *domain)
|
||||
{
|
||||
if (transive_to_domain(domain)) {
|
||||
pr_err("transive domain failed.\n");
|
||||
return;
|
||||
}
|
||||
if (transive_to_domain(domain)) {
|
||||
pr_err("transive domain failed.\n");
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
void setenforce(bool enforce)
|
||||
{
|
||||
__setenforce(enforce);
|
||||
__setenforce(enforce);
|
||||
}
|
||||
|
||||
bool getenforce(void)
|
||||
{
|
||||
if (is_selinux_disabled()) {
|
||||
return false;
|
||||
}
|
||||
if (is_selinux_disabled()) {
|
||||
return false;
|
||||
}
|
||||
|
||||
return __is_selinux_enforcing();
|
||||
return __is_selinux_enforcing();
|
||||
}
|
||||
|
||||
#if (LINUX_VERSION_CODE < KERNEL_VERSION(5, 10, 0)) && \
|
||||
!defined(KSU_COMPAT_HAS_CURRENT_SID)
|
||||
/*
|
||||
* get the subjective security ID of the current task
|
||||
*/
|
||||
static inline u32 current_sid(void)
|
||||
{
|
||||
const struct task_security_struct *tsec = current_security();
|
||||
|
||||
return tsec->sid;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 14, 0)
|
||||
struct lsm_context {
|
||||
char *context;
|
||||
u32 len;
|
||||
char *context;
|
||||
u32 len;
|
||||
};
|
||||
|
||||
static int __security_secid_to_secctx(u32 secid, struct lsm_context *cp)
|
||||
{
|
||||
return security_secid_to_secctx(secid, &cp->context, &cp->len);
|
||||
return security_secid_to_secctx(secid, &cp->context, &cp->len);
|
||||
}
|
||||
static void __security_release_secctx(struct lsm_context *cp)
|
||||
{
|
||||
return security_release_secctx(cp->context, cp->len);
|
||||
security_release_secctx(cp->context, cp->len);
|
||||
}
|
||||
#else
|
||||
#define __security_secid_to_secctx security_secid_to_secctx
|
||||
#define __security_release_secctx security_release_secctx
|
||||
#endif
|
||||
|
||||
bool is_task_ksu_domain(const struct cred* cred)
|
||||
bool is_task_ksu_domain(const struct cred *cred)
|
||||
{
|
||||
struct lsm_context ctx;
|
||||
bool result;
|
||||
if (!cred) {
|
||||
return false;
|
||||
}
|
||||
const struct task_security_struct *tsec = selinux_cred(cred);
|
||||
if (!tsec) {
|
||||
return false;
|
||||
}
|
||||
int err = __security_secid_to_secctx(tsec->sid, &ctx);
|
||||
if (err) {
|
||||
return false;
|
||||
}
|
||||
result = strncmp(KERNEL_SU_DOMAIN, ctx.context, ctx.len) == 0;
|
||||
__security_release_secctx(&ctx);
|
||||
return result;
|
||||
struct lsm_context ctx;
|
||||
bool result;
|
||||
if (!cred) {
|
||||
return false;
|
||||
}
|
||||
const struct task_security_struct *tsec = __selinux_cred(cred);
|
||||
if (!tsec) {
|
||||
return false;
|
||||
}
|
||||
int err = __security_secid_to_secctx(tsec->sid, &ctx);
|
||||
if (err) {
|
||||
return false;
|
||||
}
|
||||
result = strncmp(KERNEL_SU_DOMAIN, ctx.context, ctx.len) == 0;
|
||||
__security_release_secctx(&ctx);
|
||||
return result;
|
||||
}
|
||||
|
||||
bool is_ksu_domain()
|
||||
bool is_ksu_domain(void)
|
||||
{
|
||||
current_sid();
|
||||
return is_task_ksu_domain(current_cred());
|
||||
current_sid();
|
||||
return is_task_ksu_domain(current_cred());
|
||||
}
|
||||
|
||||
bool is_context(const struct cred* cred, const char* context)
|
||||
bool is_context(const struct cred *cred, const char *context)
|
||||
{
|
||||
if (!cred) {
|
||||
return false;
|
||||
}
|
||||
const struct task_security_struct * tsec = selinux_cred(cred);
|
||||
if (!tsec) {
|
||||
return false;
|
||||
}
|
||||
struct lsm_context ctx;
|
||||
bool result;
|
||||
int err = __security_secid_to_secctx(tsec->sid, &ctx);
|
||||
if (err) {
|
||||
return false;
|
||||
}
|
||||
result = strncmp(context, ctx.context, ctx.len) == 0;
|
||||
__security_release_secctx(&ctx);
|
||||
return result;
|
||||
if (!cred) {
|
||||
return false;
|
||||
}
|
||||
const struct task_security_struct *tsec = __selinux_cred(cred);
|
||||
if (!tsec) {
|
||||
return false;
|
||||
}
|
||||
struct lsm_context ctx;
|
||||
bool result;
|
||||
int err = __security_secid_to_secctx(tsec->sid, &ctx);
|
||||
if (err) {
|
||||
return false;
|
||||
}
|
||||
result = strncmp(context, ctx.context, ctx.len) == 0;
|
||||
__security_release_secctx(&ctx);
|
||||
return result;
|
||||
}
|
||||
|
||||
bool is_zygote(const struct cred* cred)
|
||||
bool is_zygote(const struct cred *cred)
|
||||
{
|
||||
return is_context(cred, "u:r:zygote:s0");
|
||||
return is_context(cred, "u:r:zygote:s0");
|
||||
}
|
||||
|
||||
bool is_init(const struct cred* cred) {
|
||||
return is_context(cred, "u:r:init:s0");
|
||||
bool is_init(const struct cred *cred)
|
||||
{
|
||||
return is_context(cred, "u:r:init:s0");
|
||||
}
|
||||
|
||||
#define KSU_FILE_DOMAIN "u:object_r:ksu_file:s0"
|
||||
|
||||
u32 ksu_get_ksu_file_sid()
|
||||
u32 ksu_get_ksu_file_sid(void)
|
||||
{
|
||||
u32 ksu_file_sid = 0;
|
||||
int err = security_secctx_to_secid(KSU_FILE_DOMAIN, strlen(KSU_FILE_DOMAIN),
|
||||
&ksu_file_sid);
|
||||
if (err) {
|
||||
pr_info("get ksufile sid err %d\n", err);
|
||||
}
|
||||
return ksu_file_sid;
|
||||
u32 ksu_file_sid = 0;
|
||||
int err = security_secctx_to_secid(
|
||||
KSU_FILE_DOMAIN, strlen(KSU_FILE_DOMAIN), &ksu_file_sid);
|
||||
if (err) {
|
||||
pr_info("get ksufile sid err %d\n", err);
|
||||
}
|
||||
return ksu_file_sid;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_KSU_SUSFS
|
||||
|
||||
@@ -1,11 +1,12 @@
|
||||
#ifndef __KSU_H_SELINUX
|
||||
#define __KSU_H_SELINUX
|
||||
|
||||
#include <linux/types.h>
|
||||
#include <linux/version.h>
|
||||
#include "linux/sched.h"
|
||||
#include "linux/types.h"
|
||||
#include "linux/version.h"
|
||||
#include "linux/cred.h"
|
||||
|
||||
#ifdef KSU_COMPAT_HAS_SELINUX_STATE
|
||||
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 10, 0)) || \
|
||||
defined(KSU_COMPAT_HAS_SELINUX_STATE)
|
||||
#define KSU_COMPAT_USE_SELINUX_STATE
|
||||
#endif
|
||||
|
||||
@@ -15,13 +16,13 @@ void setenforce(bool);
|
||||
|
||||
bool getenforce(void);
|
||||
|
||||
bool is_task_ksu_domain(const struct cred* cred);
|
||||
bool is_task_ksu_domain(const struct cred *cred);
|
||||
|
||||
bool is_ksu_domain(void);
|
||||
|
||||
bool is_zygote(const struct cred* cred);
|
||||
bool is_zygote(const struct cred *cred);
|
||||
|
||||
bool is_init(const struct cred* cred);
|
||||
bool is_init(const struct cred *cred);
|
||||
|
||||
void apply_kernelsu_rules(void);
|
||||
|
||||
@@ -42,4 +43,4 @@ bool susfs_is_current_init_domain(void);
|
||||
void susfs_set_priv_app_sid(void);
|
||||
#endif // #ifdef CONFIG_KSU_SUSFS
|
||||
|
||||
#endif
|
||||
#endif
|
||||
@@ -12,25 +12,31 @@
|
||||
|
||||
#ifdef CONFIG_SECURITY_SELINUX_DISABLE
|
||||
#ifdef KSU_COMPAT_USE_SELINUX_STATE
|
||||
#define is_selinux_disabled() (selinux_state.disabled)
|
||||
#define is_selinux_disabled() (selinux_state.disabled)
|
||||
#else
|
||||
#define is_selinux_disabled() (selinux_disabled)
|
||||
#define is_selinux_disabled() (selinux_disabled)
|
||||
#endif
|
||||
#else
|
||||
#define is_selinux_disabled() (0)
|
||||
#define is_selinux_disabled() (0)
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_SECURITY_SELINUX_DEVELOP
|
||||
#ifdef KSU_COMPAT_USE_SELINUX_STATE
|
||||
#define __is_selinux_enforcing() (selinux_state.enforcing)
|
||||
#define __setenforce(val) selinux_state.enforcing = val
|
||||
#define __is_selinux_enforcing() (selinux_state.enforcing)
|
||||
#define __setenforce(val) selinux_state.enforcing = val
|
||||
#elif defined(SAMSUNG_SELINUX_PORTING) || !defined(KSU_COMPAT_USE_SELINUX_STATE)
|
||||
#define __is_selinux_enforcing() (selinux_enforcing)
|
||||
#define __setenforce(val) selinux_enforcing = val
|
||||
#define __is_selinux_enforcing() (selinux_enforcing)
|
||||
#define __setenforce(val) selinux_enforcing = val
|
||||
#endif
|
||||
#else
|
||||
#define __is_selinux_enforcing() (1)
|
||||
#define __is_selinux_enforcing() (1)
|
||||
#define __setenforce(val)
|
||||
#endif
|
||||
|
||||
#ifdef KSU_OPTIONAL_SELINUX_CRED
|
||||
#define __selinux_cred(cred) (selinux_cred(cred))
|
||||
#else
|
||||
#define __selinux_cred(cred) (cred->security)
|
||||
#endif
|
||||
|
||||
#endif
|
||||
File diff suppressed because it is too large
Load Diff
Reference in New Issue
Block a user