Re: [libvirt] [PATCH 1/3] Introduce virDomainOpenGraphicsFD API

Define the public API implementation and declare internal driver prototype. --- include/libvirt/libvirt.h.in | 5 ++++ src/driver.h | 7 ++++++ src/libvirt.c | 58 ++++++++++++++++++++++++++++++++++++++++++++ src/libvirt_public.syms | 5 ++++ 4 files changed, 75 insertions(+) diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in index 47ea695..153b386 100644 --- a/include/libvirt/libvirt.h.in +++ b/include/libvirt/libvirt.h.in

diff --git a/src/libvirt.c b/src/libvirt.c index 8349261..9de1e44 100644 --- a/src/libvirt.c +++ b/src/libvirt.c @@ -20182,6 +20182,64 @@ virDomainOpenGraphics(virDomainPtr dom, /** + * virDomainOpenGraphicsFD: + * @dom: pointer to domain object + * @idx: index of graphics config to open + * @fd: returned file descriptor + * @flags: bitwise-OR of virDomainOpenGraphicsFlags + * + * This will create a socket pair connected to the graphics backend of @dom. + * One pair will be returned as @fd.

+ * If @dom has multiple graphics backends configured, then @idx will determine + * which one is opened, starting from @idx 0. + * + * To disable any authentication, pass the VIR_DOMAIN_OPEN_GRAPHICS_SKIPAUTH + * constant for @flags. + * + * This method can only be used when connected to a local + * libvirt hypervisor, over a UNIX domain socket. Attempts + * to use this method over a TCP connection will always fail + * + * Returns 0 on success, -1 on failure + */ +int +virDomainOpenGraphicsFD(virDomainPtr dom, + unsigned int idx, + int *fd, + unsigned int flags) +{ + VIR_DOMAIN_DEBUG(dom, "idx=%u, fd=%p, flags=%x", + idx, fd, flags); + + virResetLastError(); + + virCheckDomainReturn(dom, -1); + virCheckNonNullArgGoto(fd, error); + + virCheckReadOnlyGoto(dom->conn->flags, error); + + if (!VIR_DRV_SUPPORTS_FEATURE(dom->conn->driver, dom->conn, + VIR_DRV_FEATURE_FD_PASSING)) { + virReportError(VIR_ERR_ARGUMENT_UNSUPPORTED, "%s", + _("fd passing is not supported by this connection")); + goto error; + } + + if (dom->conn->driver->domainOpenGraphicsFD) { + int ret; + ret = dom->conn->driver->domainOpenGraphicsFD(dom, idx, fd, flags); + if (ret < 0) + goto error; + return ret; + } + + virReportUnsupportedError(); + + error: + virDispatchError(dom->conn); + return -1; +} +/** * virConnectSetKeepAlive: * @conn: pointer to a hypervisor connection * @interval: number of seconds of inactivity before a keepalive message is sent