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Re: [libvirt] [PATCH 1/5] secret: add Ceph secret type



On Mon, Sep 19, 2011 at 09:13:39PM -0700, Sage Weil wrote:
> Add a new secret type to store a Ceph authentication key.  The ceph_id
> field contains the name of the key (e.g. 'admin' for the ceph superuser).
> 
> Signed-off-by: Sage Weil <sage newdream net>
> ---
>  docs/schemas/secret.rng      |   17 +++++++++++++++
>  include/libvirt/libvirt.h.in |    3 ++
>  src/conf/secret_conf.c       |   45 +++++++++++++++++++++++++++++++++++++++++-
>  src/conf/secret_conf.h       |    1 +
>  src/secret/secret_driver.c   |    8 +++++++
>  5 files changed, 73 insertions(+), 1 deletions(-)
> 
> diff --git a/docs/schemas/secret.rng b/docs/schemas/secret.rng
> index 80270ae..c3da8b3 100644
> --- a/docs/schemas/secret.rng
> +++ b/docs/schemas/secret.rng
> @@ -37,6 +37,7 @@
>            <element name='usage'>
>              <choice>
>                <ref name='usagevolume'/>
> +              <ref name='cephauth'/>
>                <!-- More choices later -->
>              </choice>
>            </element>
> @@ -54,6 +55,22 @@
>      </element>
>    </define>
>  
> +  <define name='cephauth'>
> +    <attribute name='type'>
> +      <value>ceph</value>
> +    </attribute>
> +    <element name='auth'>
> +      <attribute name='id'>
> +	<text/>
> +      </attribute>
> +      <optional>
> +        <attribute name='domain'>
> +	  <text/>
> +	</attribute>

Here I would expect just

    <element name='domain'>
        <text/>
    </element>

> +      </optional>
> +    </element>
> +  </define>
> +
>    <define name="UUID">
>      <choice>
>        <data type="string">
> diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in
> index b1bda31..51fd044 100644
> --- a/include/libvirt/libvirt.h.in
> +++ b/include/libvirt/libvirt.h.in
> @@ -2257,7 +2257,10 @@ typedef virSecret *virSecretPtr;
>  typedef enum {
>      VIR_SECRET_USAGE_TYPE_NONE = 0,
>      VIR_SECRET_USAGE_TYPE_VOLUME = 1,
> +    VIR_SECRET_USAGE_TYPE_CEPH = 2,
>      /* Expect more owner types later... */
> +
> +    VIR_SECRET_USAGE_TYPE_LAST
>  } virSecretUsageType;
>  
>  virConnectPtr           virSecretGetConnect     (virSecretPtr secret);
> diff --git a/src/conf/secret_conf.c b/src/conf/secret_conf.c
> index 105afbe..8f11a51 100644
> --- a/src/conf/secret_conf.c
> +++ b/src/conf/secret_conf.c
> @@ -35,7 +35,8 @@
>  
>  #define VIR_FROM_THIS VIR_FROM_SECRET
>  
> -VIR_ENUM_IMPL(virSecretUsageType, VIR_SECRET_USAGE_TYPE_VOLUME + 1, "none", "volume")
> +VIR_ENUM_IMPL(virSecretUsageType, VIR_SECRET_USAGE_TYPE_LAST,
> +              "none", "volume", "ceph")
>  
>  void
>  virSecretDefFree(virSecretDefPtr def)
> @@ -52,6 +53,10 @@ virSecretDefFree(virSecretDefPtr def)
>          VIR_FREE(def->usage.volume);
>          break;
>  
> +    case VIR_SECRET_USAGE_TYPE_CEPH:
> +        VIR_FREE(def->usage.authIdDomain);
> +        break;
> +
>      default:
>          VIR_ERROR(_("unexpected secret usage type %d"), def->usage_type);
>          break;
> @@ -65,6 +70,8 @@ virSecretDefParseUsage(xmlXPathContextPtr ctxt,
>  {
>      char *type_str;
>      int type;
> +    char *authId, *authDomain;
> +    int ret;
>  
>      type_str = virXPathString("string(./usage/@type)", ctxt);
>      if (type_str == NULL) {
> @@ -94,6 +101,27 @@ virSecretDefParseUsage(xmlXPathContextPtr ctxt,
>          }
>          break;
>  
> +    case VIR_SECRET_USAGE_TYPE_CEPH:
> +        authId = virXPathString("string(./usage/auth/@id)", ctxt);
> +        if (!authId) {
> +            virSecretReportError(VIR_ERR_INTERNAL_ERROR, "%s",
> +                                 _("ceph usage specified, but auth id is missing"));
> +            return -1;
> +        }
> +        authDomain = virXPathString("string(./usage/auth/@domain)", ctxt);
> +        if (!authDomain) {
> +            VIR_FREE(authId);
> +            virSecretReportError(VIR_ERR_INTERNAL_ERROR, "%s",
> +                                 _("ceph usage specified, but auth domain is missing"));
> +            return -1;
> +        }
> +        ret = virAlloc(&def->usage.authIdDomain, strlen(authId) +
> +                       strlen(authDomain) + 2);
> +        sprintf(def->usage.authIdDomain, "%s/%s", authId, authDomain);
> +        VIR_FREE(authId);
> +        VIR_FREE(authDomain);
> +        break;


...which simplifies this to just 

    case VIR_SECRET_USAGE_TYPE_CEPH:
        def->usage.volume = virXPathString("string(./usage/domain)", ctxt);
        if (!def->usage.volume) {
            virSecretReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                                 _("Ceph usage specified, but volume domain is missing"));
            return -1;
        }
        break;



> +
>      default:
>          virSecretReportError(VIR_ERR_INTERNAL_ERROR,
>                               _("unexpected secret usage type %d"),
> @@ -220,6 +248,9 @@ virSecretDefFormatUsage(virBufferPtr buf,
>                          const virSecretDefPtr def)
>  {
>      const char *type;
> +    char *p;
> +    char idAuth[80];
> +    int len;
>  
>      type = virSecretUsageTypeTypeToString(def->usage_type);
>      if (type == NULL) {
> @@ -239,6 +270,18 @@ virSecretDefFormatUsage(virBufferPtr buf,
>                                    def->usage.volume);
>          break;
>  
> +    case VIR_SECRET_USAGE_TYPE_CEPH:
> +        if (def->usage.authIdDomain != NULL) {
> +            p = strchr(def->usage.authIdDomain, '/');
> +            len = p - def->usage.authIdDomain;
> +            strncpy(idAuth, def->usage.authIdDomain, len);
> +            idAuth[len] = '\0';
> +            p++;
> +            virBufferEscapeString(buf, "    <auth id='%s'", idAuth);
> +            virBufferEscapeString(buf, " domain='%s'/>\n", p);
> +        }
> +        break;

Likewise this to just

     virBufferEscapeString(buf, "    <domain>%s</domain>\n", def->usage.authIdDomain);


Regards,
Daniel
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