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Re: [RFC PATCH 1/6] net: introduce convert_host_port()
From: |
Stefano Brivio |
Subject: |
Re: [RFC PATCH 1/6] net: introduce convert_host_port() |
Date: |
Tue, 10 May 2022 23:24:07 +0200 |
On Mon, 9 May 2022 19:36:13 +0200
Laurent Vivier <lvivier@redhat.com> wrote:
> Signed-off-by: Laurent Vivier <lvivier@redhat.com>
> ---
> include/qemu/sockets.h | 2 ++
> net/net.c | 62 ++++++++++++++++++++++--------------------
> 2 files changed, 34 insertions(+), 30 deletions(-)
>
> diff --git a/include/qemu/sockets.h b/include/qemu/sockets.h
> index 038faa157f59..47194b9732f8 100644
> --- a/include/qemu/sockets.h
> +++ b/include/qemu/sockets.h
> @@ -47,6 +47,8 @@ void socket_listen_cleanup(int fd, Error **errp);
> int socket_dgram(SocketAddress *remote, SocketAddress *local, Error **errp);
>
> /* Old, ipv4 only bits. Don't use for new code. */
> +int convert_host_port(struct sockaddr_in *saddr, const char *host,
> + const char *port, Error **errp);
> int parse_host_port(struct sockaddr_in *saddr, const char *str,
> Error **errp);
> int socket_init(void);
> diff --git a/net/net.c b/net/net.c
> index a094cf1d2929..58c05c200622 100644
> --- a/net/net.c
> +++ b/net/net.c
> @@ -66,55 +66,57 @@ static QTAILQ_HEAD(, NetClientState) net_clients;
> /***********************************************************/
> /* network device redirectors */
>
> -int parse_host_port(struct sockaddr_in *saddr, const char *str,
> - Error **errp)
> +int convert_host_port(struct sockaddr_in *saddr, const char *host,
> + const char *port, Error **errp)
> {
> - gchar **substrings;
> struct hostent *he;
> - const char *addr, *p, *r;
> - int port, ret = 0;
> + const char *r;
> + long p;
>
> memset(saddr, 0, sizeof(*saddr));
>
> - substrings = g_strsplit(str, ":", 2);
> - if (!substrings || !substrings[0] || !substrings[1]) {
> - error_setg(errp, "host address '%s' doesn't contain ':' "
> - "separating host from port", str);
> - ret = -1;
> - goto out;
> - }
> -
> - addr = substrings[0];
> - p = substrings[1];
> -
> saddr->sin_family = AF_INET;
> - if (addr[0] == '\0') {
> + if (host[0] == '\0') {
> saddr->sin_addr.s_addr = 0;
> } else {
> - if (qemu_isdigit(addr[0])) {
> - if (!inet_aton(addr, &saddr->sin_addr)) {
> + if (qemu_isdigit(host[0])) {
> + if (!inet_aton(host, &saddr->sin_addr)) {
I was about to observe that this doesn't support IPv6 addresses (which
I guess we'd like to have always in the RFC 3986 form "[address]:port",
as the port is mandatory here), and to propose a small change to bridge
this gap.
Then I realised this is (partially) using GLib, so maybe we want to use
g_network_address_parse() which would, however, give us a
GSocketConnectable object.
At that point, do we want to pass the GsocketConnectable thing around,
or stick to struct sockaddr_in{,6}, filling it here from what GLib
gives us?
--
Stefano
- [RFC PATCH 0/6] qapi: net: add unix socket type support to netdev backend, Laurent Vivier, 2022/05/09
- [RFC PATCH 4/6] net: socket-ng: make dgram_dst generic, Laurent Vivier, 2022/05/09
- [RFC PATCH 3/6] net: socket-ng: add unix socket for server and client mode., Laurent Vivier, 2022/05/09
- [RFC PATCH 2/6] qapi: net: add socket-ng netdev, Laurent Vivier, 2022/05/09
- [RFC PATCH 6/6] net: socket-ng: add unix socket for dgram mode, Laurent Vivier, 2022/05/09
- [RFC PATCH 5/6] net: socket-ng: move mcast specific code from net_socket_fd_init_dgram(), Laurent Vivier, 2022/05/09
- [RFC PATCH 1/6] net: introduce convert_host_port(), Laurent Vivier, 2022/05/09
- Re: [RFC PATCH 1/6] net: introduce convert_host_port(),
Stefano Brivio <=
- Re: [RFC PATCH 0/6] qapi: net: add unix socket type support to netdev backend, Daniel P . Berrangé, 2022/05/10
- Re: [RFC PATCH 0/6] qapi: net: add unix socket type support to netdev backend, Laurent Vivier, 2022/05/10