int nflog_set_flags(struct nflog_g_handle *gh, u_int16_t flags)
{
char buf[NFNL_HEADER_LEN+NFA_LENGTH(sizeof(u_int16_t))];
struct nlmsghdr *nmh = (struct nlmsghdr *) buf;
nfnl_fill_hdr(gh->h->nfnlssh, nmh, 0, AF_UNSPEC, gh->id,
NFULNL_MSG_CONFIG, NLM_F_REQUEST|NLM_F_ACK);
nfnl_addattr16(nmh, sizeof(buf), NFULA_CFG_FLAGS, htons(flags));
return nfnl_talk(gh->h->nfnlh, nmh, 0, 0, NULL, NULL, NULL);
}
int nflog_set_qthresh(struct nflog_g_handle *gh, u_int32_t qthresh)
{
char buf[NFNL_HEADER_LEN+NFA_LENGTH(sizeof(u_int32_t))];
struct nlmsghdr *nmh = (struct nlmsghdr *) buf;
nfnl_fill_hdr(gh->h->nfnlssh, nmh, 0, AF_UNSPEC, gh->id,
NFULNL_MSG_CONFIG, NLM_F_REQUEST|NLM_F_ACK);
nfnl_addattr32(nmh, sizeof(buf), NFULA_CFG_QTHRESH, htonl(qthresh));
return nfnl_talk(gh->h->nfnlh, nmh, 0, 0, NULL, NULL, NULL);
}
/* build a NFULNL_MSG_CONFIG message */
static int
__build_send_cfg_msg(struct nflog_handle *h, u_int8_t command,
u_int16_t queuenum, u_int8_t pf)
{
char buf[NFNL_HEADER_LEN
+NFA_LENGTH(sizeof(struct nfulnl_msg_config_cmd))];
struct nfulnl_msg_config_cmd cmd;
struct nlmsghdr *nmh = (struct nlmsghdr *) buf;
nfnl_fill_hdr(h->nfnlssh, nmh, 0, pf, queuenum,
NFULNL_MSG_CONFIG, NLM_F_REQUEST|NLM_F_ACK);
cmd.command = command;
nfnl_addattr_l(nmh, sizeof(buf), NFULA_CFG_CMD, &cmd, sizeof(cmd));
return nfnl_talk(h->nfnlh, nmh, 0, 0, NULL, NULL, NULL);
}
int nflog_set_mode(struct nflog_g_handle *gh,
u_int8_t mode, u_int32_t range)
{
char buf[NFNL_HEADER_LEN
+NFA_LENGTH(sizeof(struct nfulnl_msg_config_mode))];
struct nfulnl_msg_config_mode params;
struct nlmsghdr *nmh = (struct nlmsghdr *) buf;
nfnl_fill_hdr(gh->h->nfnlssh, nmh, 0, AF_UNSPEC, gh->id,
NFULNL_MSG_CONFIG, NLM_F_REQUEST|NLM_F_ACK);
params.copy_range = htonl(range); /* copy_range is short */
params.copy_mode = mode;
nfnl_addattr_l(nmh, sizeof(buf), NFULA_CFG_MODE, ¶ms,
sizeof(params));
return nfnl_talk(gh->h->nfnlh, nmh, 0, 0, NULL, NULL, NULL);
}
int nflog_set_nlbufsiz(struct nflog_g_handle *gh, u_int32_t nlbufsiz)
{
char buf[NFNL_HEADER_LEN+NFA_LENGTH(sizeof(u_int32_t))];
struct nlmsghdr *nmh = (struct nlmsghdr *) buf;
int status;
nfnl_fill_hdr(gh->h->nfnlssh, nmh, 0, AF_UNSPEC, gh->id,
NFULNL_MSG_CONFIG, NLM_F_REQUEST|NLM_F_ACK);
nfnl_addattr32(nmh, sizeof(buf), NFULA_CFG_NLBUFSIZ, htonl(nlbufsiz));
status = nfnl_talk(gh->h->nfnlh, nmh, 0, 0, NULL, NULL, NULL);
/* we try to have space for at least 10 messages in the socket buffer */
if (status >= 0)
nfnl_rcvbufsiz(gh->h->nfnlh, 10*nlbufsiz);
return status;
}
static int osf_load_line(char *buffer, int len, int del)
{
int i, cnt = 0;
char obuf[MAXOPTSTRLEN];
struct xt_osf_user_finger f;
char *pbeg, *pend;
char buf[NFNL_HEADER_LEN + NFA_LENGTH(sizeof(struct xt_osf_user_finger))];
struct nlmsghdr *nmh = (struct nlmsghdr *) buf;
memset(&f, 0, sizeof(struct xt_osf_user_finger));
ulog("Loading '%s'.\n", buffer);
for (i = 0; i < len && buffer[i] != '\0'; ++i) {
if (buffer[i] == ':')
cnt++;
}
if (cnt != 8) {
ulog("Wrong input line '%s': cnt: %d, must be 8, i: %d, must be %d.\n", buffer, cnt, i, len);
return -EINVAL;
}
memset(obuf, 0, sizeof(obuf));
pbeg = buffer;
pend = xt_osf_strchr(pbeg, OSFPDEL);
if (pend) {
*pend = '\0';
if (pbeg[0] == 'S') {
f.wss.wc = OSF_WSS_MSS;
if (pbeg[1] == '%')
f.wss.val = strtoul(&pbeg[2], NULL, 10);
else if (pbeg[1] == '*')
f.wss.val = 0;
else
f.wss.val = strtoul(&pbeg[1], NULL, 10);
} else if (pbeg[0] == 'T') {
f.wss.wc = OSF_WSS_MTU;
if (pbeg[1] == '%')
f.wss.val = strtoul(&pbeg[2], NULL, 10);
else if (pbeg[1] == '*')
f.wss.val = 0;
else
f.wss.val = strtoul(&pbeg[1], NULL, 10);
} else if (pbeg[0] == '%') {
f.wss.wc = OSF_WSS_MODULO;
f.wss.val = strtoul(&pbeg[1], NULL, 10);
} else if (isdigit(pbeg[0])) {
f.wss.wc = OSF_WSS_PLAIN;
f.wss.val = strtoul(&pbeg[0], NULL, 10);
}
pbeg = pend + 1;
}
pend = xt_osf_strchr(pbeg, OSFPDEL);
if (pend) {
*pend = '\0';
f.ttl = strtoul(pbeg, NULL, 10);
pbeg = pend + 1;
}
pend = xt_osf_strchr(pbeg, OSFPDEL);
if (pend) {
*pend = '\0';
f.df = strtoul(pbeg, NULL, 10);
pbeg = pend + 1;
}
pend = xt_osf_strchr(pbeg, OSFPDEL);
if (pend) {
*pend = '\0';
f.ss = strtoul(pbeg, NULL, 10);
pbeg = pend + 1;
}
pend = xt_osf_strchr(pbeg, OSFPDEL);
if (pend) {
*pend = '\0';
cnt = snprintf(obuf, sizeof(obuf), "%s,", pbeg);
pbeg = pend + 1;
}
pend = xt_osf_strchr(pbeg, OSFPDEL);
if (pend) {
*pend = '\0';
if (pbeg[0] == '@' || pbeg[0] == '*')
cnt = snprintf(f.genre, sizeof(f.genre), "%s", pbeg + 1);
else
cnt = snprintf(f.genre, sizeof(f.genre), "%s", pbeg);
pbeg = pend + 1;
}
pend = xt_osf_strchr(pbeg, OSFPDEL);
if (pend) {
*pend = '\0';
cnt = snprintf(f.version, sizeof(f.version), "%s", pbeg);
pbeg = pend + 1;
}
pend = xt_osf_strchr(pbeg, OSFPDEL);
if (pend) {
*pend = '\0';
cnt =
snprintf(f.subtype, sizeof(f.subtype), "%s", pbeg);
pbeg = pend + 1;
}
xt_osf_parse_opt(f.opt, &f.opt_num, obuf, sizeof(obuf));
memset(buf, 0, sizeof(buf));
if (del)
nfnl_fill_hdr(nfnlssh, nmh, 0, AF_UNSPEC, 0, OSF_MSG_REMOVE, NLM_F_REQUEST);
else
nfnl_fill_hdr(nfnlssh, nmh, 0, AF_UNSPEC, 0, OSF_MSG_ADD, NLM_F_REQUEST | NLM_F_CREATE);
nfnl_addattr_l(nmh, sizeof(buf), OSF_ATTR_FINGER, &f, sizeof(struct xt_osf_user_finger));
return nfnl_talk(nfnlh, nmh, 0, 0, NULL, NULL, NULL);
}
