static int virNetSocketForkDaemon(const char *binary) { int ret; virCommandPtr cmd = virCommandNewArgList(binary, "--timeout=30", NULL); virCommandAddEnvPassCommon(cmd); virCommandAddEnvPass(cmd, "XDG_CACHE_HOME"); virCommandAddEnvPass(cmd, "XDG_CONFIG_HOME"); virCommandAddEnvPass(cmd, "XDG_RUNTIME_DIR"); virCommandClearCaps(cmd); virCommandDaemonize(cmd); ret = virCommandRun(cmd, NULL); virCommandFree(cmd); return ret; }
/* * 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 handshakefd) { size_t i; char *filterstr; char *outputstr; virCommandPtr cmd; cmd = virCommandNew(vm->def->emulator); /* The controller may call ip command, so we have to retain PATH. */ virCommandAddEnvPass(cmd, "PATH"); 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 (driver->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]); virCommandPreserveFD(cmd, ttyFDs[i]); } 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); } virCommandPreserveFD(cmd, handshakefd); return cmd; cleanup: virCommandFree(cmd); return NULL; }