conntrack/snprintf.c

/*
 * (C) 2005-2011 by Pablo Neira Ayuso <pablo@netfilter.org>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#include "internal/internal.h"

/* these arrays are used by snprintf_default.c and snprintf_xml.c */
const char *const l3proto2str[AF_MAX] = {
        [AF_INET]                       = "ipv4",
        [AF_INET6]                      = "ipv6",
};

const char *const proto2str[IPPROTO_MAX] = {
        [IPPROTO_TCP]                   = "tcp",
        [IPPROTO_UDP]                   = "udp",
        [IPPROTO_UDPLITE]               = "udplite",
        [IPPROTO_ICMP]                  = "icmp",
        [IPPROTO_ICMPV6]                = "icmpv6",
        [IPPROTO_SCTP]                  = "sctp",
        [IPPROTO_GRE]                   = "gre",
        [IPPROTO_DCCP]                  = "dccp",
};

const char *const states[TCP_CONNTRACK_MAX] = {
        [TCP_CONNTRACK_NONE]            = "NONE",
        [TCP_CONNTRACK_SYN_SENT]        = "SYN_SENT",
        [TCP_CONNTRACK_SYN_RECV]        = "SYN_RECV",
        [TCP_CONNTRACK_ESTABLISHED]     = "ESTABLISHED",
        [TCP_CONNTRACK_FIN_WAIT]        = "FIN_WAIT",
        [TCP_CONNTRACK_CLOSE_WAIT]      = "CLOSE_WAIT",
        [TCP_CONNTRACK_LAST_ACK]        = "LAST_ACK",
        [TCP_CONNTRACK_TIME_WAIT]       = "TIME_WAIT",
        [TCP_CONNTRACK_CLOSE]           = "CLOSE",
        [TCP_CONNTRACK_SYN_SENT2]       = "SYN_SENT2",
};

const char *const sctp_states[SCTP_CONNTRACK_MAX] = {
        [SCTP_CONNTRACK_NONE]           = "NONE",
        [SCTP_CONNTRACK_CLOSED]         = "CLOSED",
        [SCTP_CONNTRACK_COOKIE_WAIT]    = "COOKIE_WAIT",
        [SCTP_CONNTRACK_COOKIE_ECHOED]  = "COOKIE_ECHOED",
        [SCTP_CONNTRACK_ESTABLISHED]    = "ESTABLISHED",
        [SCTP_CONNTRACK_SHUTDOWN_SENT]  = "SHUTDOWN_SENT",
        [SCTP_CONNTRACK_SHUTDOWN_RECD]  = "SHUTDOWN_RECD",
        [SCTP_CONNTRACK_SHUTDOWN_ACK_SENT] = "SHUTDOWN_ACK_SENT",
};

const char *const dccp_states[DCCP_CONNTRACK_MAX] = {
        [DCCP_CONNTRACK_NONE]           = "NONE",
        [DCCP_CONNTRACK_REQUEST]        = "REQUEST",
        [DCCP_CONNTRACK_RESPOND]        = "RESPOND",
        [DCCP_CONNTRACK_PARTOPEN]       = "PARTOPEN",
        [DCCP_CONNTRACK_OPEN]           = "OPEN",
        [DCCP_CONNTRACK_CLOSEREQ]       = "CLOSEREQ",
        [DCCP_CONNTRACK_CLOSING]        = "CLOSING",
        [DCCP_CONNTRACK_TIMEWAIT]       = "TIMEWAIT",
        [DCCP_CONNTRACK_IGNORE]         = "IGNORE",
        [DCCP_CONNTRACK_INVALID]        = "INVALID",
};

int __snprintf_conntrack(char *buf,
                         unsigned int len,
                         const struct nf_conntrack *ct,
                         unsigned int type,
                         unsigned int msg_output,
                         unsigned int flags,
                         struct nfct_labelmap *map)
{
        int size;

        switch(msg_output) {
        case NFCT_O_DEFAULT:
                size = __snprintf_conntrack_default(buf, len, ct, type, flags, map);
                break;
        case NFCT_O_XML:
                size = __snprintf_conntrack_xml(buf, len, ct, type, flags, map);
                break;
        default:
                errno = ENOENT;
                return -1;
        }

        /* NULL terminated string */
        buf[size+1 > len ? len-1 : size] = '\0';

        return size;
}