struct sk_buff *tipc_log_dump(void) { struct sk_buff *reply; spin_lock_bh(&print_lock); if (!TIPC_LOG->buf) { spin_unlock_bh(&print_lock); reply = tipc_cfg_reply_ultra_string("log not activated\n"); } else if (tipc_printbuf_empty(TIPC_LOG)) { spin_unlock_bh(&print_lock); reply = tipc_cfg_reply_ultra_string("log is empty\n"); } else { struct tlv_desc *rep_tlv; struct print_buf pb; int str_len; str_len = min(TIPC_LOG->size, 32768u); spin_unlock_bh(&print_lock); reply = tipc_cfg_reply_alloc(TLV_SPACE(str_len)); if (reply) { rep_tlv = (struct tlv_desc *)reply->data; tipc_printbuf_init(&pb, TLV_DATA(rep_tlv), str_len); spin_lock_bh(&print_lock); tipc_printbuf_move(&pb, TIPC_LOG); spin_unlock_bh(&print_lock); str_len = strlen(TLV_DATA(rep_tlv)) + 1; skb_put(reply, TLV_SPACE(str_len)); TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len); } } return reply; }
static struct sk_buff *tipc_show_stats(void) { struct sk_buff *buf; struct tlv_desc *rep_tlv; char *pb; int pb_len; int str_len; u32 value; if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); value = ntohl(*(u32 *)TLV_DATA(req_tlv_area)); if (value != 0) return tipc_cfg_reply_error_string("unsupported argument"); buf = tipc_cfg_reply_alloc(TLV_SPACE(ULTRA_STRING_MAX_LEN)); if (buf == NULL) return NULL; rep_tlv = (struct tlv_desc *)buf->data; pb = TLV_DATA(rep_tlv); pb_len = ULTRA_STRING_MAX_LEN; str_len = tipc_snprintf(pb, pb_len, "TIPC version " TIPC_MOD_VER "\n"); str_len += 1; /* for "\0" */ skb_put(buf, TLV_SPACE(str_len)); TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len); return buf; }
static struct sk_buff *tipc_show_stats(void) { struct sk_buff *buf; struct tlv_desc *rep_tlv; struct print_buf pb; int str_len; u32 value; if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); value = ntohl(*(u32 *)TLV_DATA(req_tlv_area)); if (value != 0) return tipc_cfg_reply_error_string("unsupported argument"); buf = tipc_cfg_reply_alloc(TLV_SPACE(MAX_STATS_INFO)); if (buf == NULL) return NULL; rep_tlv = (struct tlv_desc *)buf->data; tipc_printbuf_init(&pb, (char *)TLV_DATA(rep_tlv), MAX_STATS_INFO); tipc_printf(&pb, "TIPC version " TIPC_MOD_VER "\n"); /* Use additional tipc_printf()'s to return more info ... */ str_len = tipc_printbuf_validate(&pb); skb_put(buf, TLV_SPACE(str_len)); TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len); return buf; }