]> The Tcpdump Group git mirrors - tcpdump/blobdiff - print-bootp.c
Put "{" at end of line with "switch" to keep a consistent style
[tcpdump] / print-bootp.c
index 64b68e2638bba46ea7ae04290b2463b73a0dc822..227ed41050704bd1f12fa14dc54e1a4257b7fcc0 100644 (file)
@@ -194,6 +194,8 @@ struct bootp {
 /* RFC 3442 */
 #define TAG_CLASSLESS_STATIC_RT        ((uint8_t) 121)
 #define TAG_CLASSLESS_STA_RT_MS        ((uint8_t) 249)
+/* RFC8572 */
+#define TAG_SZTP_REDIRECT      ((uint8_t) 143)
 /* RFC 5859 - TFTP Server Address Option for DHCPv4 */
 #define        TAG_TFTP_SERVER_ADDRESS ((uint8_t) 150)
 /* https://www.iana.org/assignments/bootp-dhcp-parameters/bootp-dhcp-parameters.xhtml */
@@ -211,8 +213,8 @@ struct bootp {
 #define        TAG_CLIENT_GUID         ((uint8_t)  97)
 #define        TAG_LDAP_URL            ((uint8_t)  95)
 /* RFC 4833, TZ codes */
-#define        TAG_TZ_PCODE            ((uint8_t) 100)
-#define        TAG_TZ_TCODE            ((uint8_t) 101)
+#define        TAG_TZ_PCODE            ((uint8_t) 100)
+#define        TAG_TZ_TCODE            ((uint8_t) 101)
 #define        TAG_NETINFO_PARENT      ((uint8_t) 112)
 #define        TAG_NETINFO_PARENT_TAG  ((uint8_t) 113)
 #define        TAG_URL                 ((uint8_t) 114)
@@ -506,6 +508,8 @@ static const struct tok tag2str[] = {
 /* RFC 3442 */
        { TAG_CLASSLESS_STATIC_RT, "$Classless-Static-Route" },
        { TAG_CLASSLESS_STA_RT_MS, "$Classless-Static-Route-Microsoft" },
+/* RFC 8572 */
+       { TAG_SZTP_REDIRECT,    "$SZTP-Redirect" },
 /* RFC 5859 - TFTP Server Address Option for DHCPv4 */
        { TAG_TFTP_SERVER_ADDRESS, "iTFTP-Server-Address" },
 /* https://www.iana.org/assignments/bootp-dhcp-parameters/bootp-dhcp-parameters.xhtml#options */
@@ -522,8 +526,8 @@ static const struct tok tag2str[] = {
        { TAG_CLIENT_NDI,       "bNDI" },       /* XXX 'b' */
        { TAG_CLIENT_GUID,      "bGUID" },      /* XXX 'b' */
        { TAG_LDAP_URL,         "aLDAP" },
-       { TAG_TZ_PCODE,         "aPOSIX-TZ" },
-       { TAG_TZ_TCODE,         "aTZ-Name" },
+       { TAG_TZ_PCODE,         "aPOSIX-TZ" },
+       { TAG_TZ_TCODE,         "aTZ-Name" },
        { TAG_NETINFO_PARENT,   "iNI" },
        { TAG_NETINFO_PARENT_TAG, "aNITAG" },
        { TAG_URL,              "aURL" },
@@ -678,7 +682,7 @@ rfc1048_print(netdissect_options *ndo,
                case 'a':
                        /* ASCII strings */
                        ND_PRINT("\"");
-                       (void)nd_printn(ndo, bp, len, NULL);
+                       nd_printjn(ndo, bp, len);
                        ND_PRINT("\"");
                        bp += len;
                        len = 0;
@@ -822,7 +826,7 @@ rfc1048_print(netdissect_options *ndo,
                                                 GET_U_1(bp + 1));
                                bp += 2;
                                ND_PRINT("\"");
-                               (void)nd_printn(ndo, bp, len - 3, NULL);
+                               nd_printjn(ndo, bp, len - 3);
                                ND_PRINT("\"");
                                bp += len - 3;
                                len = 0;
@@ -842,7 +846,7 @@ rfc1048_print(netdissect_options *ndo,
                                len--;
                                if (type == 0) {
                                        ND_PRINT("\"");
-                                       (void)nd_printn(ndo, bp, len, NULL);
+                                       nd_printjn(ndo, bp, len);
                                        ND_PRINT("\"");
                                        bp += len;
                                        len = 0;
@@ -885,7 +889,7 @@ rfc1048_print(netdissect_options *ndo,
                                        case AGENT_SUBOPTION_CIRCUIT_ID: /* fall through */
                                        case AGENT_SUBOPTION_REMOTE_ID:
                                        case AGENT_SUBOPTION_SUBSCRIBER_ID:
-                                               (void)nd_printn(ndo, bp, suboptlen, NULL);
+                                               nd_printjn(ndo, bp, suboptlen);
                                                break;
 
                                        default:
@@ -983,7 +987,7 @@ rfc1048_print(netdissect_options *ndo,
                                                break;
                                        }
                                        ND_PRINT("\"");
-                                       (void)nd_printn(ndo, bp, suboptlen, NULL);
+                                       nd_printjn(ndo, bp, suboptlen);
                                        ND_PRINT("\"");
                                        ND_PRINT(", length %u", suboptlen);
                                        suboptnumber++;
@@ -993,6 +997,39 @@ rfc1048_print(netdissect_options *ndo,
                                break;
                            }
 
+
+                       case TAG_SZTP_REDIRECT:
+                               /* as per https://datatracker.ietf.org/doc/html/rfc8572#section-8.3
+                                +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-...-+-+-+-+-+-+-+
+                                |        uri-length             |          URI                  |
+                                +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-...-+-+-+-+-+-+-+
+
+                                * uri-length: 2 octets long; specifies the length of the URI data.
+                                * URI: URI of the SZTP bootstrap server.
+                                */
+                               while (len >= 2) {
+                                       suboptlen = GET_BE_U_2(bp);
+                                       bp += 2;
+                                       len -= 2;
+                                       ND_PRINT("\n\t      ");
+                                       ND_PRINT("length %u: ", suboptlen);
+                                       if (len < suboptlen) {
+                                               ND_PRINT("length goes past end of option");
+                                               bp += len;
+                                               len = 0;
+                                               break;
+                                       }
+                                       ND_PRINT("\"");
+                                       nd_printjn(ndo, bp, suboptlen);
+                                       ND_PRINT("\"");
+                                       len -= suboptlen;
+                                       bp += suboptlen;
+                               }
+                               if (len != 0) {
+                                       ND_PRINT("[ERROR: length < 2 bytes]");
+                               }
+                               break;
+
                        default:
                                ND_PRINT("[unknown special tag %u, size %u]",
                                          tag, len);