/** * lxcContainerBuildInitCmd: * @vmDef: pointer to vm definition structure * * Build a virCommandPtr for launching the container 'init' process * * Returns a virCommandPtr */ static virCommandPtr lxcContainerBuildInitCmd(virDomainDefPtr vmDef) { char uuidstr[VIR_UUID_STRING_BUFLEN]; virCommandPtr cmd; virUUIDFormat(vmDef->uuid, uuidstr); cmd = virCommandNew(vmDef->os.init); virCommandAddEnvString(cmd, "PATH=/bin:/sbin"); virCommandAddEnvString(cmd, "TERM=linux"); virCommandAddEnvString(cmd, "container=lxc-libvirt"); virCommandAddEnvPair(cmd, "LIBVIRT_LXC_UUID", uuidstr); virCommandAddEnvPair(cmd, "LIBVIRT_LXC_NAME", vmDef->name); if (vmDef->os.cmdline) virCommandAddEnvPair(cmd, "LIBVIRT_LXC_CMDLINE", vmDef->os.cmdline); return cmd; }
/* * Pass an environment variable to the child * using current process' value */ void virCommandAddEnvPass(virCommandPtr cmd, const char *name) { char *value; if (!cmd || cmd->has_error) return; value = getenv(name); if (value) virCommandAddEnvPair(cmd, name, value); }
/* * Set LC_ALL to C, and propagate other essential environment * variables from the parent process. */ void virCommandAddEnvPassCommon(virCommandPtr cmd) { if (!cmd || cmd->has_error) return; /* Attempt to Pre-allocate; allocation failure will be detected * later during virCommandAdd*. */ ignore_value(VIR_RESIZE_N(cmd->env, cmd->maxenv, cmd->nenv, 9)); virCommandAddEnvPair(cmd, "LC_ALL", "C"); virCommandAddEnvPass(cmd, "LD_PRELOAD"); virCommandAddEnvPass(cmd, "LD_LIBRARY_PATH"); virCommandAddEnvPass(cmd, "PATH"); virCommandAddEnvPass(cmd, "HOME"); virCommandAddEnvPass(cmd, "USER"); virCommandAddEnvPass(cmd, "LOGNAME"); virCommandAddEnvPass(cmd, "TMPDIR"); }
static virCommandPtr virLXCProcessBuildControllerCmd(virLXCDriverPtr driver, virDomainObjPtr vm, int nveths, char **veths, int *ttyFDs, size_t nttyFDs, int *files, size_t nfiles, int handshakefd) { size_t i; char *filterstr; char *outputstr; virCommandPtr cmd; virLXCDriverConfigPtr cfg = virLXCDriverGetConfig(driver); cmd = virCommandNew(vm->def->emulator); /* The controller may call ip command, so we have to retain PATH. */ virCommandAddEnvPassBlockSUID(cmd, "PATH", "/bin:/usr/bin"); virCommandAddEnvFormat(cmd, "LIBVIRT_DEBUG=%d", virLogGetDefaultPriority()); if (virLogGetNbFilters() > 0) { filterstr = virLogGetFilters(); if (!filterstr) { virReportOOMError(); goto cleanup; } virCommandAddEnvPair(cmd, "LIBVIRT_LOG_FILTERS", filterstr); VIR_FREE(filterstr); } if (cfg->log_libvirtd) { if (virLogGetNbOutputs() > 0) { outputstr = virLogGetOutputs(); if (!outputstr) { virReportOOMError(); goto cleanup; } virCommandAddEnvPair(cmd, "LIBVIRT_LOG_OUTPUTS", outputstr); VIR_FREE(outputstr); } } else { virCommandAddEnvFormat(cmd, "LIBVIRT_LOG_OUTPUTS=%d:stderr", virLogGetDefaultPriority()); } virCommandAddArgList(cmd, "--name", vm->def->name, NULL); for (i = 0; i < nttyFDs; i++) { virCommandAddArg(cmd, "--console"); virCommandAddArgFormat(cmd, "%d", ttyFDs[i]); virCommandPassFD(cmd, ttyFDs[i], 0); } for (i = 0; i < nfiles; i++) { virCommandAddArg(cmd, "--passfd"); virCommandAddArgFormat(cmd, "%d", files[i]); virCommandPassFD(cmd, files[i], 0); } virCommandAddArgPair(cmd, "--security", virSecurityManagerGetModel(driver->securityManager)); virCommandAddArg(cmd, "--handshake"); virCommandAddArgFormat(cmd, "%d", handshakefd); virCommandAddArg(cmd, "--background"); for (i = 0; i < nveths; i++) { virCommandAddArgList(cmd, "--veth", veths[i], NULL); } virCommandPassFD(cmd, handshakefd, 0); return cmd; cleanup: virCommandFree(cmd); virObjectUnref(cfg); return NULL; }