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Viewing changes to net/tipc/msg.c

  • Committer: Bazaar Package Importer
  • Author(s): Paolo Pisati
  • Date: 2011-06-29 15:23:51 UTC
  • mfrom: (26.1.1 natty-proposed)
  • Revision ID: james.westby@ubuntu.com-20110629152351-xs96tm303d95rpbk
Tags: 3.0.0-1200.2
* Rebased against 3.0.0-6.7
* BSP from TI based on 3.0.0

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Lines of Context:
net/tipc/msg.c
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 * net/tipc/msg.c: TIPC message header routines
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 *
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 * Copyright (c) 2000-2006, Ericsson AB
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 * Copyright (c) 2005, Wind River Systems
 
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 * Copyright (c) 2005, 2010-2011, Wind River Systems
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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}
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/**
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 * tipc_msg_calc_data_size - determine total data size for message
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 */
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int tipc_msg_calc_data_size(struct iovec const *msg_sect, u32 num_sect)
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{
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        int dsz = 0;
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        int i;
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        for (i = 0; i < num_sect; i++)
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                dsz += msg_sect[i].iov_len;
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        return dsz;
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}
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/**
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 * tipc_msg_build - create message using specified header and data
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 *
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 * Note: Caller must not hold any locks in case copy_from_user() is interrupted!
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 * Returns message data size or errno
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 */
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int tipc_msg_build(struct tipc_msg *hdr,
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                            struct iovec const *msg_sect, u32 num_sect,
 
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int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect,
 
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                   u32 num_sect, unsigned int total_len,
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                            int max_size, int usrmem, struct sk_buff **buf)
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{
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        int dsz, sz, hsz, pos, res, cnt;
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        dsz = tipc_msg_calc_data_size(msg_sect, num_sect);
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        if (unlikely(dsz > TIPC_MAX_USER_MSG_SIZE)) {
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                *buf = NULL;
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                return -EINVAL;
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        }
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        dsz = total_len;
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        pos = hsz = msg_hdr_sz(hdr);
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        sz = hsz + dsz;
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        msg_set_size(hdr, sz);
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                default:
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                        tipc_printf(buf, "UNKNOWN TYPE %u", msg_type(msg));
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                }
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                if (msg_routed(msg) && !msg_non_seq(msg))
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                        tipc_printf(buf, "ROUT:");
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                if (msg_reroute_cnt(msg))
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                        tipc_printf(buf, "REROUTED(%u):",
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                                    msg_reroute_cnt(msg));
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                default:
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                        tipc_printf(buf, "UNKNOWN:%x", msg_type(msg));
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                }
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                if (msg_routed(msg))
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                        tipc_printf(buf, "ROUT:");
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                if (msg_reroute_cnt(msg))
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                        tipc_printf(buf, "REROUTED(%u):",
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                                    msg_reroute_cnt(msg));
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                default:
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                        tipc_printf(buf, "UNKNOWN TYPE:%x", msg_type(msg));
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                }
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                if (msg_routed(msg))
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                        tipc_printf(buf, "ROUT:");
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                if (msg_reroute_cnt(msg))
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                        tipc_printf(buf, "REROUTED(%u):", msg_reroute_cnt(msg));
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                break;
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        case LINK_PROTOCOL:
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                tipc_printf(buf, "PROT:TIM(%u):", msg_timestamp(msg));
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                switch (msg_type(msg)) {
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                case STATE_MSG:
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                        tipc_printf(buf, "STATE:");
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                        tipc_printf(buf, "UNKNOWN TYPE:%x", msg_type(msg));
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                }
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                break;
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        case ROUTE_DISTRIBUTOR:
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                tipc_printf(buf, "ROUTING_MNG:");
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                switch (msg_type(msg)) {
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                case EXT_ROUTING_TABLE:
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                        tipc_printf(buf, "EXT_TBL:");
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                        tipc_printf(buf, "TO:%x:", msg_remote_node(msg));
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                        break;
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                case LOCAL_ROUTING_TABLE:
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                        tipc_printf(buf, "LOCAL_TBL:");
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                        tipc_printf(buf, "TO:%x:", msg_remote_node(msg));
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                        break;
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                case SLAVE_ROUTING_TABLE:
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                        tipc_printf(buf, "DP_TBL:");
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                        tipc_printf(buf, "TO:%x:", msg_remote_node(msg));
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                        break;
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                case ROUTE_ADDITION:
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                        tipc_printf(buf, "ADD:");
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                        tipc_printf(buf, "TO:%x:", msg_remote_node(msg));
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                        break;
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                case ROUTE_REMOVAL:
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                        tipc_printf(buf, "REMOVE:");
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                        tipc_printf(buf, "TO:%x:", msg_remote_node(msg));
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                        break;
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                default:
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                        tipc_printf(buf, "UNKNOWN TYPE:%x", msg_type(msg));
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                }
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                break;
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        case LINK_CONFIG:
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                tipc_printf(buf, "CFG:");
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                switch (msg_type(msg)) {
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                        tipc_printf(buf, ":OPRT(%u):", msg_origport(msg));
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                        tipc_printf(buf, ":DPRT(%u):", msg_destport(msg));
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                }
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                if (msg_routed(msg) && !msg_non_seq(msg))
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                        tipc_printf(buf, ":TSEQN(%u)", msg_transp_seqno(msg));
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        }
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        if (msg_user(msg) == NAME_DISTRIBUTOR) {
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                tipc_printf(buf, ":ONOD(%x):", msg_orignode(msg));
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                tipc_printf(buf, ":DNOD(%x):", msg_destnode(msg));
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                if (msg_routed(msg))
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                        tipc_printf(buf, ":CSEQN(%u)", msg_transp_seqno(msg));
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        }
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        if (msg_user(msg) ==  LINK_CONFIG) {
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                u32 *raw = (u32 *)msg;
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                struct tipc_media_addr *orig = (struct tipc_media_addr *)&raw[5];
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                tipc_printf(buf, ":REQL(%u):", msg_req_links(msg));
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                tipc_printf(buf, ":DDOM(%x):", msg_dest_domain(msg));
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                tipc_printf(buf, ":NETID(%u):", msg_bc_netid(msg));
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                tipc_media_addr_printf(buf, orig);