Started implementing XML generation for libvirt

src/xml.c

@@ -0,0 +1,29 @@
+#include "xml.h"
+
+result_t generate_iso_xml(char** _xml, char* iso_path, int index) {
+	// Initialize the output parameters
+	*_xml = NULL;
+
+	if (index > 25)
+		return failure("Too many ISO images");
+
+	// Generate the XML
+	return foramt(_xml, "<disk type='file' device='cdrom'>"
+						"  <driver name='qemu' type='raw'/>"
+						"  <source file='%s'/>"
+						"  <target dev='sd%c' bus='sata'/>"
+						"  <readonly/>"
+						"</disk>",
+				  iso_path, 'a' + index);
+}
+
+result_t generate_vnc_xml(char** _xml, int vnc_port, char* password) {
+	// Initialize the output parameters
+	*_xml = NULL;
+
+	// Generate the XML
+	if (vnc_port == -1)
+		return format(_xml, "<graphics type='none'/>");
+	else
+		return format(_xml, "<graphics type='vnc' port='%d' autoport='no' listen='0.0.0.0' passwd='%s'/>", vnc_port, password);
+}

src/xml.h

@@ -0,0 +1,35 @@
+#pragma once
+
+#include "utils.h"
+
+/// @brief Generate the libvirt XML used to start a container with the given parameters.
+/// @param _xml The string pointer to store the resulting XML in. The caller is responsible for freeing the string.
+/// @param container The container to generate the XML for.
+/// @param cpu The number of CPUs to allocate to the container.
+/// @param memory The amount of memory to allocate to the container, in bytes.
+/// @param pci A null-terminated array of PCI devices to pass through to the container.
+/// @param iso_path A null-terminated array of ISO image paths to attach to the container.
+/// @param vnc_port The VNC port to use for the container. If -1, no VNC server will be started.
+/// @param vnc_password The password to use for the VNC server. This parameter is ignored if VNC is not enabled.
+/// @return The result of the operation.
+result_t generate_container_xml(char** _xml, char* container, int cpu, uint64_t memory, char** pci, char** iso_path, int vnc_port, char* vnc_password);
+
+/// @brief Generate the libvirt XML used to attach an ISO image to a container.
+/// @param _xml The string pointer to store the resulting XML in.
+/// @param iso_path The path to the ISO image to attach.
+/// @param index The index of the ISO image within the container. Must be positive, unique, and less than 26.
+/// @return The result of the operation.
+result_t generate_iso_xml(char** _xml, char* iso_path, int index);
+
+/// @brief Generate the libvirt XML used to start a VNC server for a container.
+/// @param _xml The string pointer to store the resulting XML in.
+/// @param vnc_port The VNC port to use for the container.
+/// @param password The password to use for the VNC server. This parameter is ignored if VNC is not enabled.
+/// @return The result of the operation.
+result_t generate_vnc_xml(char** _xml, int vnc_port, char* password);
+
+/// @brief Generate the libvirt XML used to pass through a PCI device to a container.
+/// @param _xml The string pointer to store the resulting XML in.
+/// @param pci The PCI device to generate the XML for.
+/// @return The result of the operation.
+result_t generate_pci_xml(char** _xml, char* pci);