| 1 | /* |
| 2 | * lib/error.c Error Handling |
| 3 | * |
| 4 | * This library is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU Lesser General Public |
| 6 | * License as published by the Free Software Foundation version 2.1 |
| 7 | * of the License. |
| 8 | * |
| 9 | * Copyright (c) 2008 Thomas Graf <tgraf@suug.ch> |
| 10 | */ |
| 11 | |
| 12 | #include <netlink-local.h> |
| 13 | #include <netlink/netlink.h> |
| 14 | |
| 15 | static const char *errmsg[NLE_MAX+1] = { |
| 16 | [NLE_SUCCESS] = "Success", |
| 17 | [NLE_FAILURE] = "Unspecific failure", |
| 18 | [NLE_INTR] = "Interrupted system call", |
| 19 | [NLE_BAD_SOCK] = "Bad socket", |
| 20 | [NLE_AGAIN] = "Try again", |
| 21 | [NLE_NOMEM] = "Out of memory", |
| 22 | [NLE_EXIST] = "Object exists", |
| 23 | [NLE_INVAL] = "Invalid input data or parameter", |
| 24 | [NLE_RANGE] = "Input data out of range", |
| 25 | [NLE_MSGSIZE] = "Message size not sufficient", |
| 26 | [NLE_OPNOTSUPP] = "Operation not supported", |
| 27 | [NLE_AF_NOSUPPORT] = "Address family not supported", |
| 28 | [NLE_OBJ_NOTFOUND] = "Object not found", |
| 29 | [NLE_NOATTR] = "Attribute not available", |
| 30 | [NLE_MISSING_ATTR] = "Missing attribute", |
| 31 | [NLE_AF_MISMATCH] = "Address family mismatch", |
| 32 | [NLE_SEQ_MISMATCH] = "Message sequence number mismatch", |
| 33 | [NLE_MSG_OVERFLOW] = "Kernel reported message overflow", |
| 34 | [NLE_MSG_TRUNC] = "Kernel reported truncated message", |
| 35 | [NLE_NOADDR] = "Invalid address for specified address family", |
| 36 | [NLE_SRCRT_NOSUPPORT] = "Source based routing not supported", |
| 37 | [NLE_MSG_TOOSHORT] = "Netlink message is too short", |
| 38 | [NLE_MSGTYPE_NOSUPPORT] = "Netlink message type is not supported", |
| 39 | [NLE_OBJ_MISMATCH] = "Object type does not match cache", |
| 40 | [NLE_NOCACHE] = "Unknown or invalid cache type", |
| 41 | [NLE_BUSY] = "Object busy", |
| 42 | [NLE_PROTO_MISMATCH] = "Protocol mismatch", |
| 43 | [NLE_NOACCESS] = "No Access", |
| 44 | [NLE_PERM] = "Operation not permitted", |
| 45 | }; |
| 46 | |
| 47 | /** |
| 48 | * Return error message for an error code |
| 49 | * @return error message |
| 50 | */ |
| 51 | const char *nl_geterror(int error) |
| 52 | { |
| 53 | error = abs(error); |
| 54 | |
| 55 | if (error > NLE_MAX) |
| 56 | error = NLE_FAILURE; |
| 57 | |
| 58 | return errmsg[error]; |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * Print a libnl error message |
| 63 | * @arg s error message prefix |
| 64 | * |
| 65 | * Prints the error message of the call that failed last. |
| 66 | * |
| 67 | * If s is not NULL and *s is not a null byte the argument |
| 68 | * string is printed, followed by a colon and a blank. Then |
| 69 | * the error message and a new-line. |
| 70 | */ |
| 71 | void nl_perror(int error, const char *s) |
| 72 | { |
| 73 | if (s && *s) |
| 74 | fprintf(stderr, "%s: %s\n", s, nl_geterror(error)); |
| 75 | else |
| 76 | fprintf(stderr, "%s\n", nl_geterror(error)); |
| 77 | } |
| 78 | |
| 79 | int nl_syserr2nlerr(int error) |
| 80 | { |
| 81 | error = abs(error); |
| 82 | |
| 83 | switch (error) { |
| 84 | case EBADF: return NLE_BAD_SOCK; |
| 85 | case EADDRINUSE: return NLE_EXIST; |
| 86 | case EEXIST: return NLE_EXIST; |
| 87 | case EADDRNOTAVAIL: return NLE_NOADDR; |
| 88 | case ENOENT: return NLE_OBJ_NOTFOUND; |
| 89 | case EINTR: return NLE_INTR; |
| 90 | case EAGAIN: return NLE_AGAIN; |
| 91 | case ENOTSOCK: return NLE_BAD_SOCK; |
| 92 | case ENOPROTOOPT: return NLE_INVAL; |
| 93 | case EFAULT: return NLE_INVAL; |
| 94 | case EACCES: return NLE_NOACCESS; |
| 95 | case EINVAL: return NLE_INVAL; |
| 96 | case ENOBUFS: return NLE_NOMEM; |
| 97 | case ENOMEM: return NLE_NOMEM; |
| 98 | case EAFNOSUPPORT: return NLE_AF_NOSUPPORT; |
| 99 | case EPROTONOSUPPORT: return NLE_PROTO_MISMATCH; |
| 100 | case EOPNOTSUPP: return NLE_OPNOTSUPP; |
| 101 | case EPERM: return NLE_PERM; |
| 102 | case EBUSY: return NLE_BUSY; |
| 103 | default: return NLE_FAILURE; |
| 104 | } |
| 105 | } |
| 106 | |
| 107 | /** @} */ |
| 108 | |
| 109 | |
