ui/ncurses: Properly set focus when updating subset
[petitboot] / discover / ipmi.c
index 54d4e0636f37093b089fc4a7748ca9e7db8533d4..38423b2647319fe7a3b040adc61a293857f9c9fd 100644 (file)
@@ -4,6 +4,7 @@
 #include <poll.h>
 #include <string.h>
 #include <unistd.h>
+#include <arpa/inet.h>
 
 #include <sys/ioctl.h>
 #include <sys/time.h>
@@ -183,7 +184,8 @@ int ipmi_transaction(struct ipmi *ipmi, uint8_t netfn, uint8_t cmd,
 
 out:
        lock.l_type = F_UNLCK;
-       fcntl(ipmi->fd, F_SETLKW, &lock);
+       if (fcntl(ipmi->fd, F_SETLKW, &lock) == -1)
+               pb_log("IPMI: error unlocking IPMI device: %m\n");
        return rc ? -1 : 0;
 }
 
@@ -219,3 +221,101 @@ bool ipmi_present(void)
        return !access(ipmi_devnode, R_OK | W_OK);
 }
 
+/* Reads and applies an IPMI interface config override, which closely follows
+ * the format of an interface config struct as described in lib/types */
+int parse_ipmi_interface_override(struct config *config, uint8_t *buf,
+                               uint16_t len)
+{
+       struct interface_config *ifconf;
+       char *ipstr, *gatewaystr;
+       uint8_t hwsize, ipsize;
+       int addr_type, i = 0;
+       socklen_t addr_len;
+
+       /* Get 1-byte hardware address size and ip address size */
+       memcpy(&hwsize, &buf[i], sizeof(hwsize));
+       i += sizeof(hwsize);
+       memcpy(&ipsize, &buf[i], sizeof(ipsize));
+       i += sizeof(ipsize);
+
+       if (!hwsize || !ipsize) {
+               pb_log("%s: Empty response\n", __func__);
+               return -1;
+       }
+
+       /* At the moment only support 6-byte MAC addresses */
+       if (hwsize != sizeof(ifconf->hwaddr)) {
+               pb_log("Unsupported HW address size in network override: %u\n",
+                      hwsize);
+               return -1;
+       }
+
+       /* Sanity check the IP address size */
+       if (ipsize == 4) {
+               addr_type = AF_INET;
+               addr_len = INET_ADDRSTRLEN;
+       } else if (ipsize == 16) {
+               addr_type = AF_INET6;
+               addr_len = INET6_ADDRSTRLEN;
+       } else {
+               pb_log("Unsupported IP address size: %u\n", ipsize);
+               return -1;
+       }
+
+       /* Everything past here is the interface config */
+       ifconf = talloc_zero(config, struct interface_config);
+       if (!ifconf) {
+               pb_log("Failed to allocate network override\n");
+               return -1;
+       }
+
+       /* Hardware Address */
+       memcpy(ifconf->hwaddr, &buf[i], hwsize);
+       i += hwsize;
+
+       /* Check 1-byte ignore and method flags */
+       ifconf->ignore = !!buf[i++];
+       ifconf->method = !!buf[i++];
+
+       if (ifconf->method == CONFIG_METHOD_STATIC) {
+               if (ipsize + ipsize  + 1 > len - i) {
+                       pb_log("Expected data greater than buffer size\n");
+                       talloc_free(ifconf);
+                       return -1;
+               }
+
+               /* IP address */
+               ipstr = talloc_array(ifconf, char, addr_len);
+               if (!inet_ntop(addr_type, &buf[i], ipstr, addr_len)) {
+                       pb_log("Failed to convert ipaddr: %m\n");
+                       talloc_free(ifconf);
+                       return -1;
+               }
+               i += ipsize;
+
+               /* IP address subnet */
+               ifconf->static_config.address = talloc_asprintf(ifconf,
+                                               "%s/%u", ipstr, buf[i]);
+               i++;
+
+               /* Gateway address */
+               gatewaystr = talloc_array(ifconf, char, addr_len);
+               if (!inet_ntop(addr_type, &buf[i], gatewaystr, addr_len)) {
+                       pb_log("Failed to convert gateway: %m\n");
+                       talloc_free(ifconf);
+                       return -1;
+               }
+               ifconf->static_config.gateway = gatewaystr;
+               i += ipsize;
+       }
+
+       pb_log("Applying IPMI network interface override\n");
+
+       /* Replace any existing interface config */
+       talloc_free(config->network.interfaces);
+       config->network.n_interfaces = 1;
+       config->network.interfaces = talloc(config, struct interface_config *);
+       config->network.interfaces[0] = ifconf;
+
+       return 0;
+}