From b6445dccc9451265575142216357debe713a78a4 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Fabiano=20Fid=C3=AAncio?= Date: Thu, 14 Jun 2018 06:59:52 +0200 Subject: [PATCH] xen_common: Split per-Vif logic from xenParseVif() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit xenParseVif() does a lot of stuff and, in order to make things cleaner, let's split it in two new functions: - xenParseVif(): it's a new function that keeps the old name. It's responsible for the whole per-Vif logic from the old xenParseVif(); - xenParseVifList(): it's basically the old xenParsePCI(), but now it just iterates over the list of Vifs, calling xenParsePCI() per each Vif. This patch is basically preparing the ground for the future when typesafe virConf acessors will be used. Signed-off-by: Fabiano Fidêncio Reviewed-by: Ján Tomko Signed-off-by: Ján Tomko --- src/xenconfig/xen_common.c | 354 +++++++++++++++++++------------------ 1 file changed, 183 insertions(+), 171 deletions(-) diff --git a/src/xenconfig/xen_common.c b/src/xenconfig/xen_common.c index fc7b0683b8..4a94127da1 100644 --- a/src/xenconfig/xen_common.c +++ b/src/xenconfig/xen_common.c @@ -846,202 +846,214 @@ xenParseCharDev(virConfPtr conf, virDomainDefPtr def, const char *nativeFormat) } -static int -xenParseVif(virConfPtr conf, virDomainDefPtr def, const char *vif_typename) +static virDomainNetDefPtr +xenParseVif(char *entry, const char *vif_typename) { - char *script = NULL; virDomainNetDefPtr net = NULL; - virConfValuePtr list = virConfGetValue(conf, "vif"); + virDomainNetDefPtr ret = NULL; + char *script = NULL; + char model[10]; + char type[10]; + char ip[128]; + char mac[18]; + char bridge[50]; + char vifname[50]; + char rate[50]; + char *key; + + bridge[0] = '\0'; + mac[0] = '\0'; + ip[0] = '\0'; + model[0] = '\0'; + type[0] = '\0'; + vifname[0] = '\0'; + rate[0] = '\0'; + + key = entry; + while (key) { + char *data; + char *nextkey = strchr(key, ','); + + if (!(data = strchr(key, '='))) + return NULL; + data++; + + if (STRPREFIX(key, "mac=")) { + int len = nextkey ? (nextkey - data) : sizeof(mac) - 1; + if (virStrncpy(mac, data, len, sizeof(mac)) == NULL) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("MAC address %s too big for destination"), + data); + return NULL; + } + } else if (STRPREFIX(key, "bridge=")) { + int len = nextkey ? (nextkey - data) : sizeof(bridge) - 1; + if (virStrncpy(bridge, data, len, sizeof(bridge)) == NULL) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("Bridge %s too big for destination"), + data); + return NULL; + } + } else if (STRPREFIX(key, "script=")) { + int len = nextkey ? (nextkey - data) : strlen(data); + VIR_FREE(script); + if (VIR_STRNDUP(script, data, len) < 0) + return NULL; + } else if (STRPREFIX(key, "model=")) { + int len = nextkey ? (nextkey - data) : sizeof(model) - 1; + if (virStrncpy(model, data, len, sizeof(model)) == NULL) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("Model %s too big for destination"), + data); + return NULL; + } + } else if (STRPREFIX(key, "type=")) { + int len = nextkey ? (nextkey - data) : sizeof(type) - 1; + if (virStrncpy(type, data, len, sizeof(type)) == NULL) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("Type %s too big for destination"), + data); + return NULL; + } + } else if (STRPREFIX(key, "vifname=")) { + int len = nextkey ? (nextkey - data) : sizeof(vifname) - 1; + if (virStrncpy(vifname, data, len, sizeof(vifname)) == NULL) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("Vifname %s too big for destination"), + data); + return NULL; + } + } else if (STRPREFIX(key, "ip=")) { + int len = nextkey ? (nextkey - data) : sizeof(ip) - 1; + if (virStrncpy(ip, data, len, sizeof(ip)) == NULL) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("IP %s too big for destination"), data); + return NULL; + } + } else if (STRPREFIX(key, "rate=")) { + int len = nextkey ? (nextkey - data) : sizeof(rate) - 1; + if (virStrncpy(rate, data, len, sizeof(rate)) == NULL) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("rate %s too big for destination"), data); + return NULL; + } + } - if (list && list->type == VIR_CONF_LIST) { - list = list->list; - while (list) { - char model[10]; - char type[10]; - char ip[128]; - char mac[18]; - char bridge[50]; - char vifname[50]; - char rate[50]; - char *key; - - bridge[0] = '\0'; - mac[0] = '\0'; - ip[0] = '\0'; - model[0] = '\0'; - type[0] = '\0'; - vifname[0] = '\0'; - rate[0] = '\0'; - - if ((list->type != VIR_CONF_STRING) || (list->str == NULL)) - goto skipnic; - - key = list->str; - while (key) { - char *data; - char *nextkey = strchr(key, ','); + while (nextkey && (nextkey[0] == ',' || + nextkey[0] == ' ' || + nextkey[0] == '\t')) + nextkey++; + key = nextkey; + } - if (!(data = strchr(key, '='))) - goto skipnic; - data++; - - if (STRPREFIX(key, "mac=")) { - int len = nextkey ? (nextkey - data) : sizeof(mac) - 1; - if (virStrncpy(mac, data, len, sizeof(mac)) == NULL) { - virReportError(VIR_ERR_INTERNAL_ERROR, - _("MAC address %s too big for destination"), - data); - goto skipnic; - } - } else if (STRPREFIX(key, "bridge=")) { - int len = nextkey ? (nextkey - data) : sizeof(bridge) - 1; - if (virStrncpy(bridge, data, len, sizeof(bridge)) == NULL) { - virReportError(VIR_ERR_INTERNAL_ERROR, - _("Bridge %s too big for destination"), - data); - goto skipnic; - } - } else if (STRPREFIX(key, "script=")) { - int len = nextkey ? (nextkey - data) : strlen(data); - VIR_FREE(script); - if (VIR_STRNDUP(script, data, len) < 0) - goto cleanup; - } else if (STRPREFIX(key, "model=")) { - int len = nextkey ? (nextkey - data) : sizeof(model) - 1; - if (virStrncpy(model, data, len, sizeof(model)) == NULL) { - virReportError(VIR_ERR_INTERNAL_ERROR, - _("Model %s too big for destination"), - data); - goto skipnic; - } - } else if (STRPREFIX(key, "type=")) { - int len = nextkey ? (nextkey - data) : sizeof(type) - 1; - if (virStrncpy(type, data, len, sizeof(type)) == NULL) { - virReportError(VIR_ERR_INTERNAL_ERROR, - _("Type %s too big for destination"), - data); - goto skipnic; - } - } else if (STRPREFIX(key, "vifname=")) { - int len = nextkey ? (nextkey - data) : sizeof(vifname) - 1; - if (virStrncpy(vifname, data, len, sizeof(vifname)) == NULL) { - virReportError(VIR_ERR_INTERNAL_ERROR, - _("Vifname %s too big for destination"), - data); - goto skipnic; - } - } else if (STRPREFIX(key, "ip=")) { - int len = nextkey ? (nextkey - data) : sizeof(ip) - 1; - if (virStrncpy(ip, data, len, sizeof(ip)) == NULL) { - virReportError(VIR_ERR_INTERNAL_ERROR, - _("IP %s too big for destination"), data); - goto skipnic; - } - } else if (STRPREFIX(key, "rate=")) { - int len = nextkey ? (nextkey - data) : sizeof(rate) - 1; - if (virStrncpy(rate, data, len, sizeof(rate)) == NULL) { - virReportError(VIR_ERR_INTERNAL_ERROR, - _("rate %s too big for destination"), data); - goto skipnic; - } - } + if (VIR_ALLOC(net) < 0) + goto cleanup; - while (nextkey && (nextkey[0] == ',' || - nextkey[0] == ' ' || - nextkey[0] == '\t')) - nextkey++; - key = nextkey; - } + if (mac[0]) { + if (virMacAddrParse(mac, &net->mac) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("malformed mac address '%s'"), mac); + goto cleanup; + } + } - if (VIR_ALLOC(net) < 0) - goto cleanup; + if (bridge[0] || STREQ_NULLABLE(script, "vif-bridge") || + STREQ_NULLABLE(script, "vif-vnic")) { + net->type = VIR_DOMAIN_NET_TYPE_BRIDGE; + } else { + net->type = VIR_DOMAIN_NET_TYPE_ETHERNET; + } - if (mac[0]) { - if (virMacAddrParse(mac, &net->mac) < 0) { - virReportError(VIR_ERR_INTERNAL_ERROR, - _("malformed mac address '%s'"), mac); - goto cleanup; - } - } + if (net->type == VIR_DOMAIN_NET_TYPE_BRIDGE) { + if (bridge[0] && VIR_STRDUP(net->data.bridge.brname, bridge) < 0) + goto cleanup; + } + if (ip[0]) { + char **ip_list = virStringSplit(ip, " ", 0); + size_t i; - if (bridge[0] || STREQ_NULLABLE(script, "vif-bridge") || - STREQ_NULLABLE(script, "vif-vnic")) { - net->type = VIR_DOMAIN_NET_TYPE_BRIDGE; - } else { - net->type = VIR_DOMAIN_NET_TYPE_ETHERNET; - } + if (!ip_list) + goto cleanup; - if (net->type == VIR_DOMAIN_NET_TYPE_BRIDGE) { - if (bridge[0] && VIR_STRDUP(net->data.bridge.brname, bridge) < 0) - goto cleanup; + for (i = 0; ip_list[i]; i++) { + if (virDomainNetAppendIPAddress(net, ip_list[i], 0, 0) < 0) { + virStringListFree(ip_list); + goto cleanup; } - if (ip[0]) { - char **ip_list = virStringSplit(ip, " ", 0); - size_t i; + } + virStringListFree(ip_list); + } - if (!ip_list) - goto cleanup; + if (script && script[0] && + VIR_STRDUP(net->script, script) < 0) + goto cleanup; - for (i = 0; ip_list[i]; i++) { - if (virDomainNetAppendIPAddress(net, ip_list[i], 0, 0) < 0) { - virStringListFree(ip_list); - goto cleanup; - } - } - virStringListFree(ip_list); - } + if (model[0] && + VIR_STRDUP(net->model, model) < 0) + goto cleanup; - if (script && script[0] && - VIR_STRDUP(net->script, script) < 0) - goto cleanup; + if (!model[0] && type[0] && STREQ(type, vif_typename) && + VIR_STRDUP(net->model, "netfront") < 0) + goto cleanup; - if (model[0] && - VIR_STRDUP(net->model, model) < 0) - goto cleanup; + if (vifname[0] && + VIR_STRDUP(net->ifname, vifname) < 0) + goto cleanup; - if (!model[0] && type[0] && STREQ(type, vif_typename) && - VIR_STRDUP(net->model, "netfront") < 0) - goto cleanup; + if (rate[0]) { + virNetDevBandwidthPtr bandwidth; + unsigned long long kbytes_per_sec; - if (vifname[0] && - VIR_STRDUP(net->ifname, vifname) < 0) - goto cleanup; + if (xenParseSxprVifRate(rate, &kbytes_per_sec) < 0) + goto cleanup; - if (rate[0]) { - virNetDevBandwidthPtr bandwidth; - unsigned long long kbytes_per_sec; + if (VIR_ALLOC(bandwidth) < 0) + goto cleanup; - if (xenParseSxprVifRate(rate, &kbytes_per_sec) < 0) - goto cleanup; + if (VIR_ALLOC(bandwidth->out) < 0) { + VIR_FREE(bandwidth); + goto cleanup; + } - if (VIR_ALLOC(bandwidth) < 0) - goto cleanup; - if (VIR_ALLOC(bandwidth->out) < 0) { - VIR_FREE(bandwidth); - goto cleanup; - } + bandwidth->out->average = kbytes_per_sec; + net->bandwidth = bandwidth; + } - bandwidth->out->average = kbytes_per_sec; - net->bandwidth = bandwidth; - } + VIR_STEAL_PTR(ret, net); - if (VIR_APPEND_ELEMENT(def->nets, def->nnets, net) < 0) - goto cleanup; + cleanup: + virDomainNetDefFree(net); + VIR_FREE(script); + return ret; +} + + +static int +xenParseVifList(virConfPtr conf, virDomainDefPtr def, const char *vif_typename) +{ + virConfValuePtr list = virConfGetValue(conf, "vif"); - skipnic: - list = list->next; + if (!list || list->type != VIR_CONF_LIST) + return 0; + + for (list = list->list; list; list = list->next) { + virDomainNetDefPtr net = NULL; + int rc; + + if ((list->type != VIR_CONF_STRING) || (list->str == NULL)) + continue; + + if (!(net = xenParseVif(list->str, vif_typename))) + return -1; + + rc = VIR_APPEND_ELEMENT(def->nets, def->nnets, net); + if (rc < 0) { virDomainNetDefFree(net); - net = NULL; - VIR_FREE(script); + return -1; } } return 0; - - cleanup: - virDomainNetDefFree(net); - VIR_FREE(script); - return -1; } @@ -1126,10 +1138,10 @@ xenParseConfigCommon(virConfPtr conf, return -1; if (STREQ(nativeFormat, XEN_CONFIG_FORMAT_XL)) { - if (xenParseVif(conf, def, "vif") < 0) + if (xenParseVifList(conf, def, "vif") < 0) return -1; } else if (STREQ(nativeFormat, XEN_CONFIG_FORMAT_XM)) { - if (xenParseVif(conf, def, "netfront") < 0) + if (xenParseVifList(conf, def, "netfront") < 0) return -1; } else { virReportError(VIR_ERR_INVALID_ARG, -- 2.47.2