Re: [RFC PATCH v4 10/11] qemu-sockets: introduce socket_uri()

[Markus Armbruster]

Laurent Vivier <lvivier@redhat.com> writes:

> Format a string URI from a SocketAddress.
>
> Original code from hmp-cmds.c:SocketAddress_to_str()
>
> Replace 'tcp:' by 'inet:' (because 'inet' can be also 'udp').

This one's merely misleading.

> Replace 'tcp:' by 'vsock:' with vsock socket type.

This one's positively wrong: it makes a vsock address look like an inet
address with CID misinterpreted as host.  Goes back to commit 9aca82ba31
"migration: Create socket-address parameter"

> Signed-off-by: Laurent Vivier <lvivier@redhat.com>
> ---
>  include/qemu/sockets.h |  2 +-
>  monitor/hmp-cmds.c     | 23 +----------------------
>  util/qemu-sockets.c    | 20 ++++++++++++++++++++
>  3 files changed, 22 insertions(+), 23 deletions(-)
>
> diff --git a/include/qemu/sockets.h b/include/qemu/sockets.h
> index 47194b9732f8..3e2ae7e21705 100644
> --- a/include/qemu/sockets.h
> +++ b/include/qemu/sockets.h
> @@ -41,6 +41,7 @@ int unix_listen(const char *path, Error **errp);
>  int unix_connect(const char *path, Error **errp);
>  
>  SocketAddress *socket_parse(const char *str, Error **errp);
> +char *socket_uri(SocketAddress *addr);
>  int socket_connect(SocketAddress *addr, Error **errp);
>  int socket_listen(SocketAddress *addr, int num, Error **errp);
>  void socket_listen_cleanup(int fd, Error **errp);
> @@ -123,5 +124,4 @@ SocketAddress *socket_address_flatten(SocketAddressLegacy 
> *addr);
>   * Return 0 on success.
>   */
>  int socket_address_parse_named_fd(SocketAddress *addr, Error **errp);
> -
>  #endif /* QEMU_SOCKETS_H */
> diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c
> index 47a27326eef7..eb0fe0a293b8 100644
> --- a/monitor/hmp-cmds.c
> +++ b/monitor/hmp-cmds.c
> @@ -197,27 +197,6 @@ void hmp_info_mice(Monitor *mon, const QDict *qdict)
>      qapi_free_MouseInfoList(mice_list);
>  }
>  
> -static char *SocketAddress_to_str(SocketAddress *addr)
> -{
> -    switch (addr->type) {
> -    case SOCKET_ADDRESS_TYPE_INET:
> -        return g_strdup_printf("tcp:%s:%s",
> -                               addr->u.inet.host,
> -                               addr->u.inet.port);
> -    case SOCKET_ADDRESS_TYPE_UNIX:
> -        return g_strdup_printf("unix:%s",
> -                               addr->u.q_unix.path);
> -    case SOCKET_ADDRESS_TYPE_FD:
> -        return g_strdup_printf("fd:%s", addr->u.fd.str);
> -    case SOCKET_ADDRESS_TYPE_VSOCK:
> -        return g_strdup_printf("tcp:%s:%s",
> -                               addr->u.vsock.cid,
> -                               addr->u.vsock.port);
> -    default:
> -        return g_strdup("unknown address type");
> -    }
> -}
> -
>  void hmp_info_migrate(Monitor *mon, const QDict *qdict)
>  {
>      MigrationInfo *info;
> @@ -375,7 +354,7 @@ void hmp_info_migrate(Monitor *mon, const QDict *qdict)
>          monitor_printf(mon, "socket address: [\n");
>  
>          for (addr = info->socket_address; addr; addr = addr->next) {
> -            char *s = SocketAddress_to_str(addr->value);
> +            char *s = socket_uri(addr->value);
>              monitor_printf(mon, "\t%s\n", s);
>              g_free(s);
>          }
> diff --git a/util/qemu-sockets.c b/util/qemu-sockets.c
> index 13b5b197f9ea..4efc2ce8b074 100644
> --- a/util/qemu-sockets.c
> +++ b/util/qemu-sockets.c
> @@ -1098,6 +1098,26 @@ int unix_connect(const char *path, Error **errp)
>      return sock;
>  }
>  
> +char *socket_uri(SocketAddress *addr)
> +{
> +    switch (addr->type) {
> +    case SOCKET_ADDRESS_TYPE_INET:
> +        return g_strdup_printf("inet:%s:%s",
> +                               addr->u.inet.host,
> +                               addr->u.inet.port);
> +    case SOCKET_ADDRESS_TYPE_UNIX:
> +        return g_strdup_printf("unix:%s",
> +                               addr->u.q_unix.path);
> +    case SOCKET_ADDRESS_TYPE_FD:
> +        return g_strdup_printf("fd:%s", addr->u.fd.str);
> +    case SOCKET_ADDRESS_TYPE_VSOCK:
> +        return g_strdup_printf("vsock:%s:%s",
> +                               addr->u.vsock.cid,
> +                               addr->u.vsock.port);
> +    default:
> +        return g_strdup("unknown address type");
> +    }
> +}
>  
>  SocketAddress *socket_parse(const char *str, Error **errp)
>  {

Why do you move and rename?  I'm not objecting, I just want to know the
reason :)