./tools/notsd-move

1 files changed, 0 insertions, 595 deletions

diff --git a/src/basic/virt.c b/src/basic/virt.c
deleted file mode 100644
index d8d57381ad..0000000000
--- a/src/basic/virt.c
+++ /dev/null
@@ -1,595 +0,0 @@
-/***
-  This file is part of systemd.
-
-  Copyright 2011 Lennart Poettering
-
-  systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU Lesser General Public License as published by
-  the Free Software Foundation; either version 2.1 of the License, or
-  (at your option) any later version.
-
-  systemd is distributed in the hope that it will be useful, but
-  WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <errno.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "alloc-util.h"
-#include "dirent-util.h"
-#include "fd-util.h"
-#include "fileio.h"
-#include "macro.h"
-#include "process-util.h"
-#include "stat-util.h"
-#include "string-table.h"
-#include "string-util.h"
-#include "virt.h"
-#include "env-util.h"
-
-static int detect_vm_cpuid(void) {
-
-        /* CPUID is an x86 specific interface. */
-#if defined(__i386__) || defined(__x86_64__)
-
-        static const struct {
-                const char *cpuid;
-                int id;
-        } cpuid_vendor_table[] = {
-                { "XenVMMXenVMM", VIRTUALIZATION_XEN       },
-                { "KVMKVMKVM",    VIRTUALIZATION_KVM       },
-                /* http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1009458 */
-                { "VMwareVMware", VIRTUALIZATION_VMWARE    },
-                /* http://msdn.microsoft.com/en-us/library/ff542428.aspx */
-                { "Microsoft Hv", VIRTUALIZATION_MICROSOFT },
-                /* https://wiki.freebsd.org/bhyve */
-                { "bhyve bhyve ", VIRTUALIZATION_BHYVE     },
-        };
-
-        uint32_t eax, ecx;
-        bool hypervisor;
-
-        /* http://lwn.net/Articles/301888/ */
-
-#if defined (__i386__)
-#define REG_a "eax"
-#define REG_b "ebx"
-#elif defined (__amd64__)
-#define REG_a "rax"
-#define REG_b "rbx"
-#endif
-
-        /* First detect whether there is a hypervisor */
-        eax = 1;
-        __asm__ __volatile__ (
-                /* ebx/rbx is being used for PIC! */
-                "  push %%"REG_b"         \n\t"
-                "  cpuid                  \n\t"
-                "  pop %%"REG_b"          \n\t"
-
-                : "=a" (eax), "=c" (ecx)
-                : "0" (eax)
-        );
-
-        hypervisor = !!(ecx & 0x80000000U);
-
-        if (hypervisor) {
-                union {
-                        uint32_t sig32[3];
-                        char text[13];
-                } sig = {};
-                unsigned j;
-
-                /* There is a hypervisor, see what it is */
-                eax = 0x40000000U;
-                __asm__ __volatile__ (
-                        /* ebx/rbx is being used for PIC! */
-                        "  push %%"REG_b"         \n\t"
-                        "  cpuid                  \n\t"
-                        "  mov %%ebx, %1          \n\t"
-                        "  pop %%"REG_b"          \n\t"
-
-                        : "=a" (eax), "=r" (sig.sig32[0]), "=c" (sig.sig32[1]), "=d" (sig.sig32[2])
-                        : "0" (eax)
-                );
-
-                log_debug("Virtualization found, CPUID=%s", sig.text);
-
-                for (j = 0; j < ELEMENTSOF(cpuid_vendor_table); j ++)
-                        if (streq(sig.text, cpuid_vendor_table[j].cpuid))
-                                return cpuid_vendor_table[j].id;
-
-                return VIRTUALIZATION_VM_OTHER;
-        }
-#endif
-        log_debug("No virtualization found in CPUID");
-
-        return VIRTUALIZATION_NONE;
-}
-
-static int detect_vm_device_tree(void) {
-#if defined(__arm__) || defined(__aarch64__) || defined(__powerpc__) || defined(__powerpc64__)
-        _cleanup_free_ char *hvtype = NULL;
-        int r;
-
-        r = read_one_line_file("/proc/device-tree/hypervisor/compatible", &hvtype);
-        if (r == -ENOENT) {
-                _cleanup_closedir_ DIR *dir = NULL;
-                struct dirent *dent;
-
-                dir = opendir("/proc/device-tree");
-                if (!dir) {
-                        if (errno == ENOENT) {
-                                log_debug_errno(errno, "/proc/device-tree: %m");
-                                return VIRTUALIZATION_NONE;
-                        }
-                        return -errno;
-                }
-
-                FOREACH_DIRENT(dent, dir, return -errno)
-                        if (strstr(dent->d_name, "fw-cfg")) {
-                                log_debug("Virtualization QEMU: \"fw-cfg\" present in /proc/device-tree/%s", dent->d_name);
-                                return VIRTUALIZATION_QEMU;
-                        }
-
-                log_debug("No virtualization found in /proc/device-tree/*");
-                return VIRTUALIZATION_NONE;
-        } else if (r < 0)
-                return r;
-
-        log_debug("Virtualization %s found in /proc/device-tree/hypervisor/compatible", hvtype);
-        if (streq(hvtype, "linux,kvm"))
-                return VIRTUALIZATION_KVM;
-        else if (strstr(hvtype, "xen"))
-                return VIRTUALIZATION_XEN;
-        else
-                return VIRTUALIZATION_VM_OTHER;
-#else
-        log_debug("This platform does not support /proc/device-tree");
-        return VIRTUALIZATION_NONE;
-#endif
-}
-
-static int detect_vm_dmi(void) {
-#if defined(__i386__) || defined(__x86_64__) || defined(__arm__) || defined(__aarch64__)
-
-        static const char *const dmi_vendors[] = {
-                "/sys/class/dmi/id/product_name", /* Test this before sys_vendor to detect KVM over QEMU */
-                "/sys/class/dmi/id/sys_vendor",
-                "/sys/class/dmi/id/board_vendor",
-                "/sys/class/dmi/id/bios_vendor"
-        };
-
-        static const struct {
-                const char *vendor;
-                int id;
-        } dmi_vendor_table[] = {
-                { "KVM",           VIRTUALIZATION_KVM       },
-                { "QEMU",          VIRTUALIZATION_QEMU      },
-                /* http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1009458 */
-                { "VMware",        VIRTUALIZATION_VMWARE    },
-                { "VMW",           VIRTUALIZATION_VMWARE    },
-                { "innotek GmbH",  VIRTUALIZATION_ORACLE    },
-                { "Xen",           VIRTUALIZATION_XEN       },
-                { "Bochs",         VIRTUALIZATION_BOCHS     },
-                { "Parallels",     VIRTUALIZATION_PARALLELS },
-                /* https://wiki.freebsd.org/bhyve */
-                { "BHYVE",         VIRTUALIZATION_BHYVE     },
-        };
-        unsigned i;
-        int r;
-
-        for (i = 0; i < ELEMENTSOF(dmi_vendors); i++) {
-                _cleanup_free_ char *s = NULL;
-                unsigned j;
-
-                r = read_one_line_file(dmi_vendors[i], &s);
-                if (r < 0) {
-                        if (r == -ENOENT)
-                                continue;
-
-                        return r;
-                }
-
-
-
-                for (j = 0; j < ELEMENTSOF(dmi_vendor_table); j++)
-                        if (startswith(s, dmi_vendor_table[j].vendor)) {
-                                log_debug("Virtualization %s found in DMI (%s)", s, dmi_vendors[i]);
-                                return dmi_vendor_table[j].id;
-                        }
-        }
-#endif
-
-        log_debug("No virtualization found in DMI");
-
-        return VIRTUALIZATION_NONE;
-}
-
-static int detect_vm_xen(void) {
-        /* Check for Dom0 will be executed later in detect_vm_xen_dom0
-           Thats why we dont check the content of /proc/xen/capabilities here. */
-        if (access("/proc/xen/capabilities", F_OK) < 0) {
-                log_debug("Virtualization XEN not found, /proc/xen/capabilities does not exist");
-                return VIRTUALIZATION_NONE;
-        }
-
-        log_debug("Virtualization XEN found (/proc/xen/capabilities exists)");
-        return  VIRTUALIZATION_XEN;
-
-}
-
-static bool detect_vm_xen_dom0(void) {
-        _cleanup_free_ char *domcap = NULL;
-        char *cap, *i;
-        int r;
-
-        r = read_one_line_file("/proc/xen/capabilities", &domcap);
-        if (r == -ENOENT) {
-                log_debug("Virtualization XEN not found, /proc/xen/capabilities does not exist");
-                return false;
-        }
-        if (r < 0)
-                return r;
-
-        i = domcap;
-        while ((cap = strsep(&i, ",")))
-                if (streq(cap, "control_d"))
-                        break;
-        if (!cap) {
-                log_debug("Virtualization XEN DomU found (/proc/xen/capabilites)");
-                return false;
-        }
-
-        log_debug("Virtualization XEN Dom0 ignored (/proc/xen/capabilities)");
-        return true;
-}
-
-static int detect_vm_hypervisor(void) {
-        _cleanup_free_ char *hvtype = NULL;
-        int r;
-
-        r = read_one_line_file("/sys/hypervisor/type", &hvtype);
-        if (r == -ENOENT)
-                return VIRTUALIZATION_NONE;
-        if (r < 0)
-                return r;
-
-        log_debug("Virtualization %s found in /sys/hypervisor/type", hvtype);
-
-        if (streq(hvtype, "xen"))
-                return VIRTUALIZATION_XEN;
-        else
-                return VIRTUALIZATION_VM_OTHER;
-}
-
-static int detect_vm_uml(void) {
-        _cleanup_free_ char *cpuinfo_contents = NULL;
-        int r;
-
-        /* Detect User-Mode Linux by reading /proc/cpuinfo */
-        r = read_full_file("/proc/cpuinfo", &cpuinfo_contents, NULL);
-        if (r < 0)
-                return r;
-
-        if (strstr(cpuinfo_contents, "\nvendor_id\t: User Mode Linux\n")) {
-                log_debug("UML virtualization found in /proc/cpuinfo");
-                return VIRTUALIZATION_UML;
-        }
-
-        log_debug("No virtualization found in /proc/cpuinfo.");
-        return VIRTUALIZATION_NONE;
-}
-
-static int detect_vm_zvm(void) {
-
-#if defined(__s390__)
-        _cleanup_free_ char *t = NULL;
-        int r;
-
-        r = get_proc_field("/proc/sysinfo", "VM00 Control Program", WHITESPACE, &t);
-        if (r == -ENOENT)
-                return VIRTUALIZATION_NONE;
-        if (r < 0)
-                return r;
-
-        log_debug("Virtualization %s found in /proc/sysinfo", t);
-        if (streq(t, "z/VM"))
-                return VIRTUALIZATION_ZVM;
-        else
-                return VIRTUALIZATION_KVM;
-#else
-        log_debug("This platform does not support /proc/sysinfo");
-        return VIRTUALIZATION_NONE;
-#endif
-}
-
-/* Returns a short identifier for the various VM implementations */
-int detect_vm(void) {
-        static thread_local int cached_found = _VIRTUALIZATION_INVALID;
-        int r;
-
-        if (cached_found >= 0)
-                return cached_found;
-
-        /* We have to use the correct order here:
-         * Some virtualization technologies do use KVM hypervisor but are
-         * expected to be detected as something else. So detect DMI first.
-         *
-         * An example is Virtualbox since version 5.0, which uses KVM backend.
-         * Detection via DMI works corretly, the CPU ID would find KVM
-         * only. */
-        r = detect_vm_dmi();
-        if (r < 0)
-                return r;
-        if (r != VIRTUALIZATION_NONE)
-                goto finish;
-
-        r = detect_vm_cpuid();
-        if (r < 0)
-                return r;
-        if (r != VIRTUALIZATION_NONE)
-                goto finish;
-
-        /* x86 xen will most likely be detected by cpuid. If not (most likely
-         * because we're not an x86 guest), then we should try the xen capabilities
-         * file next. If that's not found, then we check for the high-level
-         * hypervisor sysfs file:
-         *
-         * https://bugs.freedesktop.org/show_bug.cgi?id=77271 */
-
-        r = detect_vm_xen();
-        if (r < 0)
-                return r;
-        if (r != VIRTUALIZATION_NONE)
-                goto finish;
-
-        r = detect_vm_hypervisor();
-        if (r < 0)
-                return r;
-        if (r != VIRTUALIZATION_NONE)
-                goto finish;
-
-        r = detect_vm_device_tree();
-        if (r < 0)
-                return r;
-        if (r != VIRTUALIZATION_NONE)
-                goto finish;
-
-        r = detect_vm_uml();
-        if (r < 0)
-                return r;
-        if (r != VIRTUALIZATION_NONE)
-                goto finish;
-
-        r = detect_vm_zvm();
-        if (r < 0)
-                return r;
-
-finish:
-        /* x86 xen Dom0 is detected as XEN in hypervisor and maybe others.
-         * In order to detect the Dom0 as not virtualization we need to
-         * double-check it */
-        if (r == VIRTUALIZATION_XEN && detect_vm_xen_dom0())
-                r = VIRTUALIZATION_NONE;
-
-        cached_found = r;
-        log_debug("Found VM virtualization %s", virtualization_to_string(r));
-        return r;
-}
-
-int detect_container(void) {
-
-        static const struct {
-                const char *value;
-                int id;
-        } value_table[] = {
-                { "lxc",            VIRTUALIZATION_LXC            },
-                { "lxc-libvirt",    VIRTUALIZATION_LXC_LIBVIRT    },
-                { "systemd-nspawn", VIRTUALIZATION_SYSTEMD_NSPAWN },
-                { "docker",         VIRTUALIZATION_DOCKER         },
-                { "rkt",            VIRTUALIZATION_RKT            },
-        };
-
-        static thread_local int cached_found = _VIRTUALIZATION_INVALID;
-        _cleanup_free_ char *m = NULL;
-        const char *e = NULL;
-        unsigned j;
-        int r;
-
-        if (cached_found >= 0)
-                return cached_found;
-
-        /* /proc/vz exists in container and outside of the container,
-         * /proc/bc only outside of the container. */
-        if (access("/proc/vz", F_OK) >= 0 &&
-            access("/proc/bc", F_OK) < 0) {
-                r = VIRTUALIZATION_OPENVZ;
-                goto finish;
-        }
-
-        if (getpid() == 1) {
-                /* If we are PID 1 we can just check our own
-                 * environment variable */
-
-                e = getenv("container");
-                if (isempty(e)) {
-                        r = VIRTUALIZATION_NONE;
-                        goto finish;
-                }
-        } else {
-
-                /* Otherwise, PID 1 dropped this information into a
-                 * file in /run. This is better than accessing
-                 * /proc/1/environ, since we don't need CAP_SYS_PTRACE
-                 * for that. */
-
-                r = read_one_line_file("/run/systemd/container", &m);
-                if (r == -ENOENT) {
-
-                        /* Fallback for cases where PID 1 was not
-                         * systemd (for example, cases where
-                         * init=/bin/sh is used. */
-
-                        r = getenv_for_pid(1, "container", &m);
-                        if (r <= 0) {
-
-                                /* If that didn't work, give up,
-                                 * assume no container manager.
-                                 *
-                                 * Note: This means we still cannot
-                                 * detect containers if init=/bin/sh
-                                 * is passed but privileges dropped,
-                                 * as /proc/1/environ is only readable
-                                 * with privileges. */
-
-                                r = VIRTUALIZATION_NONE;
-                                goto finish;
-                        }
-                }
-                if (r < 0)
-                        return r;
-
-                e = m;
-        }
-
-        for (j = 0; j < ELEMENTSOF(value_table); j++)
-                if (streq(e, value_table[j].value)) {
-                        r = value_table[j].id;
-                        goto finish;
-                }
-
-        r = VIRTUALIZATION_CONTAINER_OTHER;
-
-finish:
-        log_debug("Found container virtualization %s", virtualization_to_string(r));
-        cached_found = r;
-        return r;
-}
-
-int detect_virtualization(void) {
-        int r;
-
-        r = detect_container();
-        if (r == 0)
-                r = detect_vm();
-
-        return r;
-}
-
-static int userns_has_mapping(const char *name) {
-        _cleanup_fclose_ FILE *f = NULL;
-        _cleanup_free_ char *buf = NULL;
-        size_t n_allocated = 0;
-        ssize_t n;
-        uint32_t a, b, c;
-        int r;
-
-        f = fopen(name, "re");
-        if (!f) {
-                log_debug_errno(errno, "Failed to open %s: %m", name);
-                return errno == ENOENT ? false : -errno;
-        }
-
-        n = getline(&buf, &n_allocated, f);
-        if (n < 0) {
-                if (feof(f)) {
-                        log_debug("%s is empty, we're in an uninitialized user namespace", name);
-                        return true;
-                }
-
-                return log_debug_errno(errno, "Failed to read %s: %m", name);
-        }
-
-        r = sscanf(buf, "%"PRIu32" %"PRIu32" %"PRIu32, &a, &b, &c);
-        if (r < 3)
-                return log_debug_errno(errno, "Failed to parse %s: %m", name);
-
-        if (a == 0 && b == 0 && c == UINT32_MAX) {
-                /* The kernel calls mappings_overlap() and does not allow overlaps */
-                log_debug("%s has a full 1:1 mapping", name);
-                return false;
-        }
-
-        /* Anything else implies that we are in a user namespace */
-        log_debug("Mapping found in %s, we're in a user namespace", name);
-        return true;
-}
-
-int running_in_userns(void) {
-        _cleanup_free_ char *line = NULL;
-        int r;
-
-        r = userns_has_mapping("/proc/self/uid_map");
-        if (r != 0)
-                return r;
-
-        r = userns_has_mapping("/proc/self/gid_map");
-        if (r != 0)
-                return r;
-
-        /* "setgroups" file was added in kernel v3.18-rc6-15-g9cc46516dd. It is also
-         * possible to compile a kernel without CONFIG_USER_NS, in which case "setgroups"
-         * also does not exist. We cannot distinguish those two cases, so assume that
-         * we're running on a stripped-down recent kernel, rather than on an old one,
-         * and if the file is not found, return false.
-         */
-        r = read_one_line_file("/proc/self/setgroups", &line);
-        if (r < 0) {
-                log_debug_errno(r, "/proc/self/setgroups: %m");
-                return r == -ENOENT ? false : r;
-        }
-
-        truncate_nl(line);
-        r = streq(line, "deny");
-        /* See user_namespaces(7) for a description of this "setgroups" contents. */
-        log_debug("/proc/self/setgroups contains \"%s\", %s user namespace", line, r ? "in" : "not in");
-        return r;
-}
-
-int running_in_chroot(void) {
-        int ret;
-
-        if (getenv_bool("SYSTEMD_IGNORE_CHROOT") > 0)
-                return 0;
-
-        ret = files_same("/proc/1/root", "/");
-        if (ret < 0)
-                return ret;
-
-        return ret == 0;
-}
-
-static const char *const virtualization_table[_VIRTUALIZATION_MAX] = {
-        [VIRTUALIZATION_NONE] = "none",
-        [VIRTUALIZATION_KVM] = "kvm",
-        [VIRTUALIZATION_QEMU] = "qemu",
-        [VIRTUALIZATION_BOCHS] = "bochs",
-        [VIRTUALIZATION_XEN] = "xen",
-        [VIRTUALIZATION_UML] = "uml",
-        [VIRTUALIZATION_VMWARE] = "vmware",
-        [VIRTUALIZATION_ORACLE] = "oracle",
-        [VIRTUALIZATION_MICROSOFT] = "microsoft",
-        [VIRTUALIZATION_ZVM] = "zvm",
-        [VIRTUALIZATION_PARALLELS] = "parallels",
-        [VIRTUALIZATION_BHYVE] = "bhyve",
-        [VIRTUALIZATION_VM_OTHER] = "vm-other",
-
-        [VIRTUALIZATION_SYSTEMD_NSPAWN] = "systemd-nspawn",
-        [VIRTUALIZATION_LXC_LIBVIRT] = "lxc-libvirt",
-        [VIRTUALIZATION_LXC] = "lxc",
-        [VIRTUALIZATION_OPENVZ] = "openvz",
-        [VIRTUALIZATION_DOCKER] = "docker",
-        [VIRTUALIZATION_RKT] = "rkt",
-        [VIRTUALIZATION_CONTAINER_OTHER] = "container-other",
-};
-
-DEFINE_STRING_TABLE_LOOKUP(virtualization, int);