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qemu-sockets: add abstract UNIX domain socket support

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unix_listen/connect_saddr now support abstract address types

two aditional BOOL switches are introduced:
tight: whether to set @addrlen to the minimal string length,
       or the maximum sun_path length. default is TRUE
abstract: whether we use abstract address. default is FALSE

cli example:
-monitor unix:/tmp/unix.socket,abstract,tight=off
OR
-chardev socket,path=/tmp/unix.socket,id=unix1,abstract,tight=on

Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
xiaoqiang zhao 2020-05-16 11:13:25 +08:00 • committed by Daniel P. Berrangé
parent f2465433b4
commit 776b97d360
4 changed files with 50 additions and 8 deletions
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4
chardev/char-socket.c
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@ -1380,6 +1380,8 @@ static void qemu_chr_parse_socket(QemuOpts *opts, ChardevBackend *backend,
const char *host = qemu_opt_get(opts, "host");
const char *port = qemu_opt_get(opts, "port");
const char *fd = qemu_opt_get(opts, "fd");
bool tight = qemu_opt_get_bool(opts, "tight", true);
bool abstract = qemu_opt_get_bool(opts, "abstract", false);
SocketAddressLegacy *addr;
ChardevSocket *sock;
@ -1431,6 +1433,8 @@ static void qemu_chr_parse_socket(QemuOpts *opts, ChardevBackend *backend,
addr->type = SOCKET_ADDRESS_LEGACY_KIND_UNIX;
q_unix = addr->u.q_unix.data = g_new0(UnixSocketAddress, 1);
q_unix->path = g_strdup(path);
q_unix->tight = tight;
q_unix->abstract = abstract;
} else if (host) {
addr->type = SOCKET_ADDRESS_LEGACY_KIND_INET;
addr->u.inet.data = g_new(InetSocketAddress, 1);