/*
* parse traffic control message
*/
int parse_tcamsg(struct nlmsghdr *nlh)
{
struct tcamsg *tcam;
int tcam_len;
struct rtattr *tcaa[TCAA_MAX+1];
char msg[MAX_MSG_SIZE] = "";
char *mp = msg;
int log_opts = get_log_opts();
/* debug nlmsghdr */
if(log_opts & L_DEBUG)
debug_nlmsg(0, nlh);
/* get tcamsg */
tcam_len = NLMSG_PAYLOAD(nlh, 0);
if(tcam_len < sizeof(*tcam)) {
rec_log("error: %s: length too short", __func__);
return(1);
}
tcam = (struct tcamsg *)NLMSG_DATA(nlh);
/* parse traffic control action message attributes */
parse_tca(tcaa, nlh);
/* debug tcamsg */
if(log_opts & L_DEBUG)
debug_tcamsg(0, tcam, tcaa, tcam_len);
/* kind of message */
switch(nlh->nlmsg_type) {
case RTM_NEWACTION:
mp = add_log(msg, mp, "tc action added: ");
break;
case RTM_DELACTION:
mp = add_log(msg, mp, "tc action deleted: ");
break;
default:
return(1);
}
if(tcaa[TCA_ACT_TAB])
if(parse_tca_acts(msg, mp, tcaa[TCA_ACT_TAB]))
return(1);
return(0);
}
/*
* parse rsvp options
*/
int parse_tca_options_rsvp(char *msg, char **mp, struct tcmsg *tcm, struct rtattr *tca)
{
struct rtattr *rsvp[__TCA_RSVP_MAX];
char *mp_tmp = *mp;
parse_nested_rtattr(rsvp, TCA_RSVP_MAX, tca);
if(rsvp[TCA_RSVP_CLASSID])
if(parse_tca_classid(msg, mp, rsvp[TCA_RSVP_CLASSID]))
return(1);
if(rsvp[TCA_RSVP_DST])
if(parse_tca_rsvp_dst(msg, mp, tcm, rsvp[TCA_RSVP_DST]))
return(1);
if(rsvp[TCA_RSVP_SRC])
if(parse_tca_rsvp_src(msg, mp, tcm, rsvp[TCA_RSVP_SRC]))
return(1);
if(rsvp[TCA_RSVP_PINFO])
if(parse_tca_rsvp_pinfo(msg, mp, rsvp[TCA_RSVP_PINFO]))
return(1);
if(*mp != mp_tmp)
rec_log("%s", msg);
/* rollback pointer */
*mp = mp_tmp;
/* logging for each attribute below */
if(rsvp[TCA_RSVP_POLICE])
if(parse_tca_act_options_police(msg, *mp, rsvp[TCA_RSVP_POLICE]))
return(1);
if(rsvp[TCA_RSVP_ACT])
if(parse_tca_acts(msg, *mp, rsvp[TCA_RSVP_ACT]))
return(1);
return(0);
}
/*
* parse flow options
*/
int parse_tca_options_flow(char *msg, char **mp, struct rtattr *tca)
{
struct rtattr *flow[__TCA_FLOW_MAX];
char *mp_tmp = *mp;
parse_nested_rtattr(flow, TCA_FLOW_MAX, tca);
if(flow[TCA_FLOW_BASECLASS])
if(parse_tca_classid(msg, mp, flow[TCA_FLOW_BASECLASS]))
return(1);
if(flow[TCA_FLOW_KEYS])
if(parse_tca_flow_keys(msg, mp, flow[TCA_FLOW_KEYS]))
return(1);
if(flow[TCA_FLOW_MODE])
if(parse_tca_flow_mode(msg, mp, flow[TCA_FLOW_MODE]))
return(1);
if(flow[TCA_FLOW_MASK])
if(parse_tca_mask(msg, mp, flow[TCA_FLOW_MASK]))
return(1);
if(flow[TCA_FLOW_XOR])
if(parse_tca_flow_xor(msg, mp, flow[TCA_FLOW_XOR]))
return(1);
if(flow[TCA_FLOW_RSHIFT])
if(parse_tca_flow_rshift(msg, mp, flow[TCA_FLOW_RSHIFT]))
return(1);
if(flow[TCA_FLOW_ADDEND])
if(parse_tca_flow_addend(msg, mp, flow[TCA_FLOW_ADDEND]))
return(1);
if(flow[TCA_FLOW_DIVISOR])
if(parse_tca_flow_divisor(msg, mp, flow[TCA_FLOW_DIVISOR]))
return(1);
if(flow[TCA_FLOW_PERTURB])
if(parse_tca_flow_perturb(msg, mp, flow[TCA_FLOW_PERTURB]))
return(1);
if(*mp != mp_tmp)
rec_log("%s", msg);
/* rollback pointer */
*mp = mp_tmp;
/* logging for each attribute below */
if(flow[TCA_FLOW_EMATCHES])
if(parse_tca_ematch(msg, *mp, flow[TCA_FLOW_EMATCHES]))
return(1);
if(flow[TCA_FLOW_POLICE])
if(parse_tca_act_options_police(msg, *mp, flow[TCA_FLOW_POLICE]))
return(1);
if(flow[TCA_FLOW_ACT])
if(parse_tca_acts(msg, *mp, flow[TCA_FLOW_ACT]))
return(1);
return(0);
}
