mirror of
https://github.com/ChronosX88/netsukuku.git
synced 2024-10-18 09:21:01 +00:00
I, FINALLY, Fixed the bug where netsukuku just crashed in restricted mode, Without restoring /etc/resolv.conf. However! I did this by bypassing fatal(). This is kind of a hack, Netsukuku will probably be able to restore /etc/resolv.conf without this, Once the tunl0 bug is fixed, Thus preventing fatal from being called.
This commit is contained in:
MissValeska
parent
c61afcb0db
commit
b7f8a6cdb9
302
src/igs.c
302
src/igs.c
@ -48,9 +48,9 @@ int igw_multi_gw_disabled;
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/*
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* bandwidth_in_8bit:
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* `x' is the bandwidth value expressed in Kb/s.
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*
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*
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* Since we consider `x' expressed in this form:
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* x = y * 2^y;
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* x = y * 2^y;
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* we can store just `y' in a u_char (8bit) variable.
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*
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* `bandwidth_in_8bit' returns `y' from `x'.
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@ -64,22 +64,22 @@ u_char bandwidth_in_8bit(u_int x)
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u_int diff_2;
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for(z=27;z>=0;z--) {
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i=z<<z;
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if(i==x)
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/* x is exactly z*2^z */
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return (u_char)z;
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b=(z-1)<<(z-1);
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diff_2=(i-b)>>1;
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if(x >= i-diff_2 && x <=i)
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/* `x' is nearer to z*2^z than (z-1)*2^(z-1) */
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/* `x' is nearer to z*2^z than (z-1)*2^(z-1) */
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return z;
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a = z == 27 ? i : (z+1)<<(z+1);
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diff_2=(a-i)>>1;
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if(x <= i+diff_2 && x >= i)
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/* `x' is nearer to z*2^z than (z+1)*2^(z+1) */
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/* `x' is nearer to z*2^z than (z+1)*2^(z+1) */
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return z;
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}
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return 0;
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@ -97,7 +97,7 @@ u_int bandwidth_to_32bit(u_char x)
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* str_to_inet_gw:
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* The syntax of `str' is IP:devname, i.e. 192.168.1.1:eth0.
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* str_to_inet_gw() stores the IP in `gw'.
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* In `*dev' is returned the pointer to a newly allocated string containing
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* In `*dev' is returned the pointer to a newly allocated string containing
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* the device name.
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* On error -1 is returned.
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*/
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@ -115,7 +115,7 @@ int str_to_inet_gw(char *str, inet_prefix *gw, char **dev)
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if(!*buf)
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/* No device was specified */
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return -1;
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if(strlen(buf) >= IFNAMSIZ)
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/* It is too long, truncate it */
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buf[IFNAMSIZ-1]=0;
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@ -140,7 +140,7 @@ int str_to_inet_gw(char *str, inet_prefix *gw, char **dev)
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char **parse_internet_hosts(char *str, int *hosts)
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{
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char **hnames;
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hnames=split_string(str, ":", hosts, MAX_INTERNET_HNAMES,
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MAX_INTERNET_HNAME_SZ);
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return hnames;
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@ -158,7 +158,7 @@ void free_internet_hosts(char **hnames, int hosts)
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/*
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* internet_hosts_to_ip: replace the hostnames present in
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* `server_opt.inet_hosts' with IP strings. The IPs are obtained
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* `server_opt.inet_hosts' with IP strings. The IPs are obtained
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* with a normal DNS resolution. The hosts which cannot be resolved are
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* deleted from the `inet_hosts' array.
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*/
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@ -168,7 +168,7 @@ void internet_hosts_to_ip(void)
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for(i=0; i < server_opt.inet_hosts_counter; i++) {
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inet_prefix ip;
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if(andns_gethostbyname(server_opt.inet_hosts[i], &ip)) {
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error("Cannot resolve \"%s\". Check your netsukuku.conf",
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server_opt.inet_hosts[i]);
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@ -195,7 +195,7 @@ void init_igws(inet_gw ***igws, int **igws_counter, int levels)
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void reset_igws(inet_gw **igws, int *igws_counter, int levels)
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{
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int i;
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if(!igws)
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return;
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@ -219,7 +219,7 @@ void free_igws(inet_gw **igws, int *igws_counter, int levels)
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xfree(igws_counter);
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}
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/*
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/*
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* init_my_igws
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*
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* initialiases the `my_igws' array. This list keeps inet_gw structs which
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@ -229,7 +229,7 @@ void free_igws(inet_gw **igws, int *igws_counter, int levels)
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* ...
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*/
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void init_my_igws(inet_gw **igws, int *igws_counter,
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inet_gw ***my_new_igws, u_char my_bandwidth,
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inet_gw ***my_new_igws, u_char my_bandwidth,
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map_node *cur_node, quadro_group *qg)
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{
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inet_gw *igw, **my_igws;
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@ -244,7 +244,7 @@ void init_my_igws(inet_gw **igws, int *igws_counter,
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bw_mean=my_bandwidth;
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} else {
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node=&qg->gnode[_EL(i)]->g;
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bw_mean=e=0;
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igw=igws[i-1];
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list_for(igw) {
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@ -253,13 +253,13 @@ void init_my_igws(inet_gw **igws, int *igws_counter,
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}
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bw_mean/=e;
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}
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igw=igw_add_node(igws, igws_counter, i, qg->gid[i],
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node, (int*)qg->ipstart[0].data,
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node, (int*)qg->ipstart[0].data,
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(u_char)bw_mean);
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my_igws[i]=igw;
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}
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*my_new_igws=my_igws;
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}
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@ -271,7 +271,7 @@ void free_my_igws(inet_gw ***my_igs)
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}
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/*
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* init_internet_gateway_search:
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* init_internet_gateway_search:
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* Initialization of the igs.c code.
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*/
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void init_internet_gateway_search(void)
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@ -289,31 +289,33 @@ void init_internet_gateway_search(void)
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/*
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* Just return if we aren't in restricted mode or if the user doesn't
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* want to use shared internet connections
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* want to use shared internet connections
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*/
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if(!restricted_mode || (!server_opt.use_shared_inet &&
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if(!restricted_mode || (!server_opt.use_shared_inet &&
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!server_opt.share_internet))
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return;
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loginfo("Activating the Internet Gateway Search engine");
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init_igws(&me.igws, &me.igws_counter, GET_LEVELS(my_family));
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init_tunnels_ifs();
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/* delete all the old tunnels */
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del_all_tunnel_ifs(0, 0, 0, NTK_TUNL_PREFIX);
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/*
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* Bring tunl0 up (just to test if the ipip module is loaded)
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*/
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loginfo("Configuring the \"" DEFAULT_TUNL_IF "\" tunnel device");
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if(tunnel_change(0, 0, 0, DEFAULT_TUNL_PREFIX, DEFAULT_TUNL_NUMBER) < 0)
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fatal("Cannot initialize \"" DEFAULT_TUNL_IF "\". "
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if(tunnel_change(0, 0, 0, DEFAULT_TUNL_PREFIX, DEFAULT_TUNL_NUMBER) < 0) {
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printf("Cannot initialize \"" DEFAULT_TUNL_IF "\". "
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"Is the \"ipip\" kernel module loaded?\n"
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" If you don't care about using the shared internet "
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"connections of the ntk nodes\n"
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" around you, disable the \"use_shared_inet\" option "
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"in netsukuku.conf");
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del_resolv_conf("nameserver 127.0.0.1", "/etc/resolv.conf");
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exit(1);}
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ifs_del_all_name(me.cur_ifs, &me.cur_ifs_n, NTK_TUNL_PREFIX);
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ifs_del_all_name(me.cur_ifs, &me.cur_ifs_n, DEFAULT_TUNL_PREFIX);
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@ -333,7 +335,7 @@ void init_internet_gateway_search(void)
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igw_multi_gw_disabled=1;
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}
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/*
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/*
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* Check anomalies: from this point we initialize stuff only if we
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* have an Inet connection
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*/
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@ -360,7 +362,7 @@ void init_internet_gateway_search(void)
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setzero(&new_gw, sizeof(inet_prefix));
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ret=rt_get_default_gw(&new_gw, new_gw_dev);
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/*
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/*
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* If there is no IP set in the route, fetch it at least from the
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* device included in it.
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*/
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@ -368,18 +370,18 @@ void init_internet_gateway_search(void)
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if(get_dev_ip(&new_gw, my_family, new_gw_dev) < 0)
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(*new_gw_dev)=0;
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}
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if(ret < 0 || (!*new_gw_dev && !new_gw.family)) {
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/* Nothing useful has been found */
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loginfo("The retrieval of the default gw from the kernel failed.");
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if(!server_opt.inet_gw.data[0])
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fatal("The default gw isn't set in the kernel and you "
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"didn't specified it in netsukuku.conf. "
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"Cannot continue!");
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} else if(!server_opt.inet_gw_dev ||
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strncmp(new_gw_dev, server_opt.inet_gw_dev, IFNAMSIZ) ||
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} else if(!server_opt.inet_gw_dev ||
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strncmp(new_gw_dev, server_opt.inet_gw_dev, IFNAMSIZ) ||
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memcmp(new_gw.data, server_opt.inet_gw.data, MAX_IP_SZ)) {
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if(server_opt.inet_gw.data[0])
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@ -397,8 +399,8 @@ void init_internet_gateway_search(void)
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/* Delete the default gw, we are replacing it */
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rt_delete_def_gw(0);
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}
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loginfo("Using \"%s dev %s\" as your first Internet gateway.",
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loginfo("Using \"%s dev %s\" as your first Internet gateway.",
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inet_to_str(server_opt.inet_gw), server_opt.inet_gw_dev);
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if(rt_replace_def_gw(server_opt.inet_gw_dev, server_opt.inet_gw, 0))
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fatal("Cannot set the default gw to %s %s",
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@ -419,14 +421,14 @@ void init_internet_gateway_search(void)
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}
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}
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/*
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* Activate the traffic shaping for the `server_opt.inet_gw_dev'
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* device
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*/
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if(server_opt.shape_internet)
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igw_exec_tcshaper_sh(server_opt.tc_shaper_script, 0,
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server_opt.inet_gw_dev, server_opt.my_upload_bw,
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server_opt.inet_gw_dev, server_opt.my_upload_bw,
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server_opt.my_dnload_bw);
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for(i=0; i < me.cur_ifs_n; i++)
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@ -435,11 +437,11 @@ void init_internet_gateway_search(void)
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if(!strcmp(server_opt.ifs[i], server_opt.inet_gw_dev))
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fatal("You specified the \"%s\" interface"
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" in the options, but this device is also"
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" part of the primary Internet gw route."
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" part of the primary Internet gw route."
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" Don't include \"%s\" in the list of "
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"interfaces utilised by the daemon",
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"interfaces utilised by the daemon",
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server_opt.inet_gw_dev, server_opt.inet_gw_dev);
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loginfo("Deleting the \"%s\" interface from the device "
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"list since it is part of the primary Internet"
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" gw route.", me.cur_ifs[i].dev_name);
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@ -472,7 +474,7 @@ void init_internet_gateway_search(void)
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void close_internet_gateway_search(void)
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{
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if(!restricted_mode || (!server_opt.use_shared_inet &&
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if(!restricted_mode || (!server_opt.use_shared_inet &&
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!server_opt.share_internet))
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return;
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@ -484,7 +486,7 @@ void close_internet_gateway_search(void)
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if(server_opt.shape_internet)
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igw_exec_tcshaper_sh(server_opt.tc_shaper_script, 1,
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server_opt.inet_gw_dev, 0, 0);
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/* Delete all the added rules */
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reset_igw_rules();
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@ -498,7 +500,7 @@ void close_internet_gateway_search(void)
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free_my_igws(&me.my_igws);
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/* Free what has been malloced */
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free_internet_hosts(server_opt.inet_hosts,
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free_internet_hosts(server_opt.inet_hosts,
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server_opt.inet_hosts_counter);
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}
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@ -518,7 +520,7 @@ inet_gw *igw_add_node(inet_gw **igws, int *igws_counter, int level,
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igw->node=node;
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igw->gid=gid;
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igw->bandwidth=bandwidth;
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clist_add(&igws[level], &igws_counter[level], igw);
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return igw;
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@ -530,7 +532,7 @@ int igw_del(inet_gw **igws, int *igws_counter, inet_gw *igw, int level)
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return -1;
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igw->node->flags&=~MAP_IGW;
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if(!igws[level])
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return -1;
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@ -579,7 +581,7 @@ int igw_del_node(inet_gw **igws, int *igws_counter, int level,
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}
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/*
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* igw_update_gnode_bw:
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* igw_update_gnode_bw:
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* call this function _after_ adding and _before_ deleting the `igw->node' node
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* from the me.igws llist. This fuctions will update the `bandwidth' value of
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* the inet_gw which points to our (g)nodes.
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@ -589,14 +591,14 @@ void igw_update_gnode_bw(int *igws_counter, inet_gw **my_igws, inet_gw *igw,
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int new, int level, int maxlevels)
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{
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int i, bw, old_bw=0;
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if(level >= maxlevels)
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return;
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if(new) {
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if(igws_counter[level] <= 0)
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return;
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bw = my_igws[level+1]->bandwidth * (igws_counter[level]-1);
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bw = (bw + igw->bandwidth) / igws_counter[level];
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} else {
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@ -622,7 +624,7 @@ void igw_update_gnode_bw(int *igws_counter, inet_gw **my_igws, inet_gw *igw,
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/*
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* igw_cmp: compares two inet_gw structs calculating their connection quality:
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* igw_cmp: compares two inet_gw structs calculating their connection quality:
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* bandwith - rtt/1000;
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*/
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int igw_cmp(const void *a, const void *b)
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@ -637,7 +639,7 @@ int igw_cmp(const void *a, const void *b)
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cq_a = bandwidth_to_32bit(gw_a->bandwidth) - trtt;
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trtt = gw_b->node->links ? gw_b->node->r_node[0].trtt/1000 : 0;
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cq_b = bandwidth_to_32bit(gw_b->bandwidth) - trtt;
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if(cq_a > cq_b)
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return 1;
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else if(cq_a == cq_b)
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@ -648,7 +650,7 @@ int igw_cmp(const void *a, const void *b)
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/*
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* igw_order: orders in decrescent order the `igws[`level']' llist,
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* comparing the igws[level]->bandwidth and igws[level]->node->r_node[0].trtt
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* comparing the igws[level]->bandwidth and igws[level]->node->r_node[0].trtt
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* values.
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* `my_igws[level]' will point to the inet_gw struct which refers to an our
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* (g)node.
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@ -657,12 +659,12 @@ void igw_order(inet_gw **igws, int *igws_counter, inet_gw **my_igws, int level)
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{
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inet_gw *igw, *new_head, *maxigws_ptr;
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int i;
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if(!igws_counter[level] || !igws[level])
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return;
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clist_qsort(new_head, igws[level], igws_counter[level], igw_cmp);
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igw=new_head;
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list_for(igw) {
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if(i >= MAXIGWS) {
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@ -670,14 +672,14 @@ void igw_order(inet_gw **igws, int *igws_counter, inet_gw **my_igws, int level)
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list_substitute(maxigws_ptr, igw);
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igw=maxigws_ptr;
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}
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/* The maximum number of igw has been exceeded */
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clist_del(&igws[level], &igws_counter[level], igw);
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}
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if(my_igws && igw->node->flags & MAP_ME)
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my_igws[level]=igw;
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if(i == MAXIGWS-1)
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maxigws_ptr=igw;
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@ -695,20 +697,20 @@ int igw_check_inet_conn(void)
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{
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int i, ret;
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for(i=0; server_opt.inet_hosts && server_opt.inet_hosts[i] &&
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for(i=0; server_opt.inet_hosts && server_opt.inet_hosts[i] &&
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i < server_opt.inet_hosts_counter; i++) {
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ret=pingthost(server_opt.inet_hosts[i], INET_HOST_PING_TIMEOUT);
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if(ret >= 1)
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return 1;
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}
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return 0;
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}
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/*
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* igw_check_inet_conn_t
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*
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* checks if we are connected to the internet, then waits, then checks
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*
|
||||
* checks if we are connected to the internet, then waits, then checks
|
||||
* if we are connected, then ...
|
||||
*/
|
||||
void *igw_check_inet_conn_t(void *null)
|
||||
@ -716,7 +718,7 @@ void *igw_check_inet_conn_t(void *null)
|
||||
inet_prefix new_gw;
|
||||
char new_gw_dev[IFNAMSIZ];
|
||||
int old_status, ret;
|
||||
|
||||
|
||||
for(;;) {
|
||||
old_status=me.inet_connected;
|
||||
me.inet_connected=igw_check_inet_conn();
|
||||
@ -724,12 +726,12 @@ void *igw_check_inet_conn_t(void *null)
|
||||
if(old_status && !me.inet_connected) {
|
||||
/* Connection lost, disable me.my_igws[0] */
|
||||
loginfo("Internet connection lost. Inet connection sharing disabled");
|
||||
|
||||
|
||||
me.my_igws[0]->bandwidth=0;
|
||||
igw_update_gnode_bw(me.igws_counter, me.my_igws,
|
||||
me.my_igws[0], 0, 0, me.cur_quadg.levels);
|
||||
clist_join(&me.igws[0], &me.igws_counter[0], me.my_igws[0]);
|
||||
|
||||
|
||||
} else if(!old_status && me.inet_connected) {
|
||||
if(server_opt.share_internet) {
|
||||
/* Maybe the Internet gateway is changed, it's
|
||||
@ -737,17 +739,17 @@ void *igw_check_inet_conn_t(void *null)
|
||||
|
||||
ret=rt_get_default_gw(&new_gw, new_gw_dev);
|
||||
if(ret < 0) {
|
||||
/*
|
||||
/*
|
||||
* Something's wrong, we can reach Inet
|
||||
* hosts, but we cannot take the default
|
||||
* hosts, but we cannot take the default
|
||||
* gw, thus consider ourself not connected.
|
||||
*/
|
||||
me.inet_connected=0;
|
||||
goto skip_it;
|
||||
}
|
||||
if(strncmp(new_gw_dev, server_opt.inet_gw_dev, IFNAMSIZ) ||
|
||||
if(strncmp(new_gw_dev, server_opt.inet_gw_dev, IFNAMSIZ) ||
|
||||
memcmp(new_gw.data, server_opt.inet_gw.data, MAX_IP_SZ)) {
|
||||
|
||||
|
||||
/* New Internet gw (dialup connection ?)*/
|
||||
strncpy(server_opt.inet_gw_dev, new_gw_dev, IFNAMSIZ);
|
||||
memcpy(&server_opt.inet_gw, &new_gw, sizeof(inet_prefix));
|
||||
@ -765,7 +767,7 @@ void *igw_check_inet_conn_t(void *null)
|
||||
me.my_igws[0], 1, 0, me.cur_quadg.levels);
|
||||
|
||||
}
|
||||
skip_it:
|
||||
skip_it:
|
||||
sleep(INET_NEXT_PING_WAIT);
|
||||
}
|
||||
}
|
||||
@ -778,11 +780,11 @@ int igw_ping_igw(inet_gw *igw)
|
||||
inet_prefix ip;
|
||||
char ntop[INET6_ADDRSTRLEN]="\0";
|
||||
const char *ipstr;
|
||||
|
||||
|
||||
inet_setip_raw(&ip, igw->ip, my_family);
|
||||
if(!(ipstr=inet_to_str(ip)))
|
||||
return -1;
|
||||
|
||||
|
||||
strcpy(ntop, ipstr);
|
||||
return pingthost(ntop, IGW_HOST_PING_TIMEOUT) >= 1;
|
||||
}
|
||||
@ -796,7 +798,7 @@ void *igw_monitor_igws_t(void *null)
|
||||
{
|
||||
inet_gw *igw, *next, *old_igw;
|
||||
int i, nexthops, ip[MAX_IP_INT], l, ni;
|
||||
|
||||
|
||||
nexthops=MAX_MULTIPATH_ROUTES/me.cur_quadg.levels;
|
||||
for(;;) {
|
||||
while(me.cur_node->flags & MAP_HNODE)
|
||||
@ -806,7 +808,7 @@ void *igw_monitor_igws_t(void *null)
|
||||
|
||||
while(me.cur_node->flags & MAP_HNODE)
|
||||
sleep(1);
|
||||
|
||||
|
||||
igw=me.igws[i];
|
||||
|
||||
ni=0;
|
||||
@ -822,9 +824,9 @@ void *igw_monitor_igws_t(void *null)
|
||||
|
||||
if(!igw_ping_igw(igw)) {
|
||||
memcpy(ip, igw->ip, MAX_IP_SZ);
|
||||
|
||||
|
||||
loginfo("The Internet gw %s doesn't replies "
|
||||
"to pings. It is dead.",
|
||||
"to pings. It is dead.",
|
||||
ipraw_to_str(igw->ip, my_family));
|
||||
|
||||
for(l=i, old_igw=igw; l<me.cur_quadg.levels; l++) {
|
||||
@ -840,7 +842,7 @@ void *igw_monitor_igws_t(void *null)
|
||||
ni++;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
sleep(INET_NEXT_PING_WAIT);
|
||||
}
|
||||
}
|
||||
@ -854,7 +856,7 @@ int igw_exec_masquerade_sh(char *script, int stop)
|
||||
{
|
||||
int ret;
|
||||
char argv[7]="";
|
||||
|
||||
|
||||
sprintf(argv, "%s", stop ? "stop" : "start");
|
||||
|
||||
ret=exec_root_script(script, argv);
|
||||
@ -869,19 +871,19 @@ int igw_exec_masquerade_sh(char *script, int stop)
|
||||
* shaping.
|
||||
* If `stop' is set to 1 the script will be executed as "script stop `dev'".
|
||||
*/
|
||||
int igw_exec_tcshaper_sh(char *script, int stop,
|
||||
int igw_exec_tcshaper_sh(char *script, int stop,
|
||||
char *dev, int upload_bw, int dnload_bw)
|
||||
{
|
||||
int ret;
|
||||
char argv[7]="";
|
||||
|
||||
|
||||
if(stop)
|
||||
sprintf(argv, "%s %s", "stop", dev);
|
||||
else
|
||||
sprintf(argv, "%s %d %d", dev, upload_bw, dnload_bw);
|
||||
|
||||
ret=exec_root_script(script, argv);
|
||||
|
||||
|
||||
if(ret == -1) {
|
||||
if(!stop)
|
||||
error("%s wasn't executed. The traffic shaping will be "
|
||||
@ -889,14 +891,14 @@ int igw_exec_tcshaper_sh(char *script, int stop,
|
||||
else
|
||||
error("The traffic shaping is still enabled!");
|
||||
}
|
||||
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* add_igw_nexthop:
|
||||
*
|
||||
*
|
||||
* `igwn' is an array of at leat MAX_MULTIPATH_ROUTES members.
|
||||
* `ip' is the ip of the nexthop
|
||||
*
|
||||
@ -916,7 +918,7 @@ int add_igw_nexthop(igw_nexthop *igwn, inet_prefix *ip, int *new)
|
||||
*new=0;
|
||||
return i;
|
||||
}
|
||||
|
||||
|
||||
for(i=0; i<MAX_MULTIPATH_ROUTES; i++) {
|
||||
if(!(igwn[i].flags & IGW_ACTIVE)) {
|
||||
inet_copy(&igwn[i].nexthop, ip);
|
||||
@ -945,7 +947,7 @@ void reset_igw_nexthop(igw_nexthop *igwn)
|
||||
setzero(igwn, sizeof(igw_nexthop)*MAX_MULTIPATH_ROUTES);
|
||||
}
|
||||
|
||||
/*
|
||||
/*
|
||||
* reset_igw_rules: flush all the routing rules
|
||||
*/
|
||||
void reset_igw_rules(void)
|
||||
@ -954,7 +956,7 @@ void reset_igw_rules(void)
|
||||
* Reset each rule added for a tunnel-nexthop
|
||||
* and the rule used for the Anti-loop multi-igw shield.
|
||||
*/
|
||||
rule_flush_table_range(my_family, RTTABLE_IGW,
|
||||
rule_flush_table_range(my_family, RTTABLE_IGW,
|
||||
RTTABLE_IGW+MAX_MULTIPATH_ROUTES);
|
||||
}
|
||||
|
||||
@ -965,7 +967,7 @@ void reset_igw_rules(void)
|
||||
* from the `igws' llist.
|
||||
* On error -1 is returned.
|
||||
*/
|
||||
int igw_replace_def_igws(inet_gw **igws, int *igws_counter,
|
||||
int igw_replace_def_igws(inet_gw **igws, int *igws_counter,
|
||||
inet_gw **my_igws, int max_levels, int family)
|
||||
{
|
||||
inet_gw *igw;
|
||||
@ -975,14 +977,14 @@ int igw_replace_def_igws(inet_gw **igws, int *igws_counter,
|
||||
int ni, ni_lvl, nexthops, level, max_multipath_routes, i, x;
|
||||
int res, new_nexhtop;
|
||||
|
||||
#ifdef DEBUG
|
||||
#ifdef DEBUG
|
||||
#define MAX_GW_IP_STR_SIZE (MAX_MULTIPATH_ROUTES*((INET6_ADDRSTRLEN+1)+IFNAMSIZ)+1)
|
||||
int n;
|
||||
char gw_ip[MAX_GW_IP_STR_SIZE]="";
|
||||
#endif
|
||||
|
||||
|
||||
max_multipath_routes=MAX_MULTIPATH_ROUTES;
|
||||
|
||||
|
||||
/* to == 0.0.0.0 */
|
||||
inet_setip_anyaddr(&to, family);
|
||||
to.len=to.bits=0;
|
||||
@ -990,8 +992,8 @@ int igw_replace_def_igws(inet_gw **igws, int *igws_counter,
|
||||
nh=xzalloc(sizeof(struct nexthop)*MAX_MULTIPATH_ROUTES);
|
||||
ni=0; /* nexthop index */
|
||||
|
||||
/*
|
||||
* If we are sharing our Internet connection use, as the primary
|
||||
/*
|
||||
* If we are sharing our Internet connection use, as the primary
|
||||
* gateway `me.internet_gw'.
|
||||
*/
|
||||
if(server_opt.share_internet && me.inet_connected) {
|
||||
@ -1003,21 +1005,21 @@ int igw_replace_def_igws(inet_gw **igws, int *igws_counter,
|
||||
max_multipath_routes--;
|
||||
}
|
||||
|
||||
/*
|
||||
* Set all our saved nexthop as inactives, then mark as "active" only
|
||||
/*
|
||||
* Set all our saved nexthop as inactives, then mark as "active" only
|
||||
* the nexhtop we are going to re-pick, in this way we can know what
|
||||
* nexthop have been dropped.
|
||||
*/
|
||||
set_igw_nexhtop_inactive(multigw_nh);
|
||||
|
||||
|
||||
/* We choose an equal number of nexthops for each level */
|
||||
nexthops=max_multipath_routes/max_levels;
|
||||
|
||||
for(level=0; level<max_levels; level++) {
|
||||
|
||||
|
||||
/* Remember the nexthops we choose at each cycle */
|
||||
inet_gw *taken_nexthops[max_multipath_routes];
|
||||
|
||||
|
||||
#ifndef IGS_MULTI_GW
|
||||
if(ni)
|
||||
break;
|
||||
@ -1029,11 +1031,11 @@ int igw_replace_def_igws(inet_gw **igws, int *igws_counter,
|
||||
/* Reorder igws[level] */
|
||||
igw_order(igws, igws_counter, my_igws, level);
|
||||
|
||||
|
||||
/*
|
||||
* Take the first `nexthops'# gateways and add them in `ni'
|
||||
|
||||
/*
|
||||
* Take the first `nexthops'# gateways and add them in `ni'
|
||||
*/
|
||||
|
||||
|
||||
ni_lvl=0;
|
||||
igw=igws[level];
|
||||
list_for(igw) {
|
||||
@ -1047,18 +1049,18 @@ int igw_replace_def_igws(inet_gw **igws, int *igws_counter,
|
||||
/* Do not include ourself as an inet-gw */
|
||||
if(!memcmp(igw->ip, me.cur_ip.data, MAX_IP_SZ))
|
||||
continue;
|
||||
|
||||
/* Avoid duplicates, do not choose gateways we already
|
||||
|
||||
/* Avoid duplicates, do not choose gateways we already
|
||||
* included in the nexthops array */
|
||||
for(i=0, x=0; i<ni; i++)
|
||||
if(!memcmp(taken_nexthops[i]->ip, igw->ip,
|
||||
if(!memcmp(taken_nexthops[i]->ip, igw->ip,
|
||||
MAX_IP_SZ)) {
|
||||
x=1;
|
||||
break;
|
||||
}
|
||||
if(x)
|
||||
continue;
|
||||
|
||||
|
||||
igw->flags|=IGW_ACTIVE;
|
||||
inet_setip(&nh[ni].gw, igw->ip, family);
|
||||
nh[ni].hops=max_multipath_routes-ni+1;
|
||||
@ -1066,7 +1068,7 @@ int igw_replace_def_igws(inet_gw **igws, int *igws_counter,
|
||||
if((x=add_igw_nexthop(multigw_nh, &nh[ni].gw,
|
||||
&new_nexhtop)) < 0)
|
||||
continue;
|
||||
|
||||
|
||||
nh[ni].dev=tunnel_ifs[multigw_nh[x].tunl].dev_name;
|
||||
|
||||
/*
|
||||
@ -1074,26 +1076,26 @@ int igw_replace_def_igws(inet_gw **igws, int *igws_counter,
|
||||
* delete it.
|
||||
*/
|
||||
if(*nh[ni].dev && new_nexhtop)
|
||||
del_tunnel_if(0, 0, nh[ni].dev, NTK_TUNL_PREFIX,
|
||||
del_tunnel_if(0, 0, nh[ni].dev, NTK_TUNL_PREFIX,
|
||||
multigw_nh[x].tunl);
|
||||
|
||||
if(!*nh[ni].dev) {
|
||||
|
||||
if(!*nh[ni].dev) {
|
||||
setzero(&nh_tmp, sizeof(struct nexthop)*2);
|
||||
memcpy(&nh_tmp[0], &nh[ni], sizeof(struct nexthop));
|
||||
inet_ntohl(nh_tmp[0].gw.data, nh_tmp[0].gw.family);
|
||||
|
||||
/*
|
||||
|
||||
/*
|
||||
* Initialize the `nh[ni].dev' tunnel, it's
|
||||
* its first time.
|
||||
*/
|
||||
if((add_tunnel_if(&nh_tmp[0].gw, &me.cur_ip, 0,
|
||||
NTK_TUNL_PREFIX, multigw_nh[x].tunl,
|
||||
if((add_tunnel_if(&nh_tmp[0].gw, &me.cur_ip, 0,
|
||||
NTK_TUNL_PREFIX, multigw_nh[x].tunl,
|
||||
&me.cur_ip)) < 0)
|
||||
continue;
|
||||
|
||||
/*
|
||||
|
||||
/*
|
||||
* Add the table for the new tunnel-gw:
|
||||
*
|
||||
*
|
||||
* ip rule add from me.cur_ip \
|
||||
* fwmark multigw_nh[x].tunl+1 \
|
||||
* lookup multigw_nh[x].table
|
||||
@ -1103,14 +1105,14 @@ int igw_replace_def_igws(inet_gw **igws, int *igws_counter,
|
||||
rule_del(&ip, 0, 0, 0,
|
||||
multigw_nh[x].tunl, multigw_nh[x].table);
|
||||
inet_htonl(ip.data, ip.family);
|
||||
rule_add(&ip, 0, 0, 0, multigw_nh[x].tunl+1,
|
||||
rule_add(&ip, 0, 0, 0, multigw_nh[x].tunl+1,
|
||||
multigw_nh[x].table);
|
||||
multigw_nh[x].flags|=IGW_RTRULE;
|
||||
|
||||
/*
|
||||
* Add the default route in the added table:
|
||||
*
|
||||
* ip route replace default via nh[ni].gw \
|
||||
*
|
||||
* ip route replace default via nh[ni].gw \
|
||||
* table multigw_nh[x].table \
|
||||
* dev nh[ni].dev
|
||||
*/
|
||||
@ -1119,17 +1121,17 @@ int igw_replace_def_igws(inet_gw **igws, int *igws_counter,
|
||||
error("Cannote replace the default "
|
||||
"route of the table %d ",
|
||||
multigw_nh[x].table);
|
||||
|
||||
|
||||
res=create_mark_rules(multigw_nh[x].tunl+1);
|
||||
if (res==-1)
|
||||
if (res==-1)
|
||||
error(err_str);
|
||||
}
|
||||
taken_nexthops[ni]=igw;
|
||||
|
||||
|
||||
ni++;
|
||||
ni_lvl++;
|
||||
}
|
||||
|
||||
|
||||
if(ni_lvl >= nexthops)
|
||||
/* All the other gateways are inactive */
|
||||
list_for(igw)
|
||||
@ -1149,7 +1151,7 @@ int igw_replace_def_igws(inet_gw **igws, int *igws_counter,
|
||||
return 0;
|
||||
|
||||
#ifdef DEBUG
|
||||
for(n=0; nh && nh[n].dev; n++){
|
||||
for(n=0; nh && nh[n].dev; n++){
|
||||
strcat(gw_ip, inet_to_str(nh[n].gw));
|
||||
strcat(gw_ip, "|");
|
||||
strcat(gw_ip, nh[n].dev);
|
||||
@ -1162,15 +1164,15 @@ int igw_replace_def_igws(inet_gw **igws, int *igws_counter,
|
||||
error("WARNING: Cannot update the default route "
|
||||
"lvl %d", level);
|
||||
active_gws=ni;
|
||||
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
/*
|
||||
* igw_build_bentry: It builds the Internet gateway bnode blocks to be added
|
||||
* in the bnode's entry in the tracer pkt. For the specification of this type
|
||||
* of bnode block read igs.h
|
||||
*
|
||||
*
|
||||
* It returns the mallocated package containing the bblock, in `*pack_sz' it
|
||||
* stores the package's size.
|
||||
* The number of different bblock contained in the package is written in
|
||||
@ -1184,7 +1186,7 @@ char *igw_build_bentry(u_char level, size_t *pack_sz, int *new_bblocks)
|
||||
bnode_chunk *bchunk;
|
||||
inet_gw *igws_buf[MAX_IGW_PER_QSPN_CHUNK], *igw;
|
||||
inet_prefix ip;
|
||||
|
||||
|
||||
int i, e, lvl, found_gws=0, max_igws, gids[FAMILY_LVLS];
|
||||
size_t total_bblocks_sz, bblock_sz;
|
||||
char *bblock, *buf;
|
||||
@ -1202,7 +1204,7 @@ char *igw_build_bentry(u_char level, size_t *pack_sz, int *new_bblocks)
|
||||
if(!level && me.my_igws[level]->bandwidth)
|
||||
igws_buf[found_gws++]=me.my_igws[level];
|
||||
else {
|
||||
for(lvl=level-1, found_gws=0;
|
||||
for(lvl=level-1, found_gws=0;
|
||||
lvl >= 0 && found_gws < max_igws; lvl--) {
|
||||
|
||||
igw=me.igws[lvl];
|
||||
@ -1227,7 +1229,7 @@ char *igw_build_bentry(u_char level, size_t *pack_sz, int *new_bblocks)
|
||||
total_bblocks_sz = bblock_sz * found_gws;
|
||||
bblock=xzalloc(total_bblocks_sz);
|
||||
|
||||
/*
|
||||
/*
|
||||
* Write each IGW in the bblock
|
||||
*/
|
||||
for(i=0, buf=(char *)bblock; i<found_gws; i++) {
|
||||
@ -1264,12 +1266,12 @@ char *igw_build_bentry(u_char level, size_t *pack_sz, int *new_bblocks)
|
||||
|
||||
/*
|
||||
* igw_store_bblock
|
||||
*
|
||||
* It creates an inet_gw struct in me.igws using the bblock contained in
|
||||
*
|
||||
* It creates an inet_gw struct in me.igws using the bblock contained in
|
||||
* `bchunk'. The hdr of the bblock is `bblock_hdr'.
|
||||
* The bblock has been packed using igw_build_bentry().
|
||||
* `level' is the level where the qspn_pkt which carries the bblock is being
|
||||
* spread.
|
||||
* spread.
|
||||
* The kernel routing table is also updated.
|
||||
* On error -1 is returned.
|
||||
*/
|
||||
@ -1284,7 +1286,7 @@ int igw_store_bblock(bnode_hdr *bblock_hdr, bnode_chunk *bchunk, u_char level)
|
||||
u_char *bnode_gid;
|
||||
|
||||
int i, update=0;
|
||||
|
||||
|
||||
/*
|
||||
* Extract the IP of the Internet gateway
|
||||
*/
|
||||
@ -1296,13 +1298,13 @@ int igw_store_bblock(bnode_hdr *bblock_hdr, bnode_chunk *bchunk, u_char level)
|
||||
|
||||
gidtoipstart(gids, me.cur_quadg.levels, me.cur_quadg.levels, my_family,
|
||||
&gw_ip);
|
||||
|
||||
|
||||
#ifdef DEBUG
|
||||
if(server_opt.dbg_lvl)
|
||||
debug(DBG_NOISE, GREEN("igw_store_bblock: storing %s IGW, level %d"),
|
||||
inet_to_str(gw_ip), level);
|
||||
#endif
|
||||
|
||||
|
||||
/*
|
||||
* Add `gw_ip' in all the levels >= `level' of me.igws
|
||||
*/
|
||||
@ -1313,7 +1315,7 @@ int igw_store_bblock(bnode_hdr *bblock_hdr, bnode_chunk *bchunk, u_char level)
|
||||
gnode = gnode_from_pos(gids[i], me.ext_map[_EL(i)]);
|
||||
node = &gnode->g;
|
||||
}
|
||||
|
||||
|
||||
igw=igw_find_ip(me.igws, i, gw_ip.data);
|
||||
if(igw) {
|
||||
if(abs(igw->bandwidth - (char)bchunk->rtt) >= IGW_BW_DELTA) {
|
||||
@ -1321,7 +1323,7 @@ int igw_store_bblock(bnode_hdr *bblock_hdr, bnode_chunk *bchunk, u_char level)
|
||||
update=1;
|
||||
}
|
||||
} else {
|
||||
igw_add_node(me.igws, me.igws_counter, i, gids[i], node,
|
||||
igw_add_node(me.igws, me.igws_counter, i, gids[i], node,
|
||||
(int*)gw_ip.data, bchunk->rtt);
|
||||
update=1;
|
||||
}
|
||||
@ -1330,14 +1332,14 @@ int igw_store_bblock(bnode_hdr *bblock_hdr, bnode_chunk *bchunk, u_char level)
|
||||
if(!update)
|
||||
/* we've finished */
|
||||
return 0;
|
||||
|
||||
/*
|
||||
* Refresh the Kernel routing table
|
||||
|
||||
/*
|
||||
* Refresh the Kernel routing table
|
||||
*/
|
||||
ret=igw_replace_def_igws(me.igws, me.igws_counter, me.my_igws,
|
||||
ret=igw_replace_def_igws(me.igws, me.igws_counter, me.my_igws,
|
||||
me.cur_quadg.levels, my_family);
|
||||
if(ret == -1) {
|
||||
debug(DBG_SOFT, ERROR_MSG "cannot replace default gateway",
|
||||
debug(DBG_SOFT, ERROR_MSG "cannot replace default gateway",
|
||||
ERROR_POS);
|
||||
return -1;
|
||||
}
|
||||
@ -1353,7 +1355,7 @@ char *pack_inet_gw(inet_gw *igw, char *pack)
|
||||
memcpy(buf, igw->ip, MAX_IP_SZ);
|
||||
inet_htonl((u_int *)buf, my_family);
|
||||
buf+=MAX_IP_SZ;
|
||||
|
||||
|
||||
memcpy(buf, &igw->gid, sizeof(u_char));
|
||||
buf+=sizeof(u_char);
|
||||
|
||||
@ -1370,7 +1372,7 @@ inet_gw *unpack_inet_gw(char *pack, inet_gw *igw)
|
||||
memcpy(igw->ip, buf, MAX_IP_SZ);
|
||||
inet_ntohl(igw->ip, my_family);
|
||||
buf+=MAX_IP_SZ;
|
||||
|
||||
|
||||
memcpy(&igw->gid, buf, sizeof(u_char));
|
||||
buf+=sizeof(u_char);
|
||||
|
||||
@ -1389,14 +1391,14 @@ char *pack_igws(inet_gw **igws, int *igws_counter, int levels, int *pack_sz)
|
||||
{
|
||||
struct inet_gw_pack_hdr hdr;
|
||||
inet_gw *igw;
|
||||
|
||||
|
||||
int lvl;
|
||||
char *pack, *buf;
|
||||
|
||||
setzero(&hdr, sizeof(struct inet_gw_pack_hdr));
|
||||
|
||||
/*
|
||||
* Fill the pack header and calculate the total pack size
|
||||
/*
|
||||
* Fill the pack header and calculate the total pack size
|
||||
*/
|
||||
hdr.levels=levels;
|
||||
*pack_sz=sizeof(struct inet_gw_pack_hdr);
|
||||
@ -1426,8 +1428,8 @@ char *pack_igws(inet_gw **igws, int *igws_counter, int levels, int *pack_sz)
|
||||
/*
|
||||
* unpack_igws: upacks what pack_igws() packed.
|
||||
* `pack' is the package which is `pack_sz' big.
|
||||
* The pointer to the unpacked igws are stored in `new_igws' and
|
||||
* `new_igws_counter'.
|
||||
* The pointer to the unpacked igws are stored in `new_igws' and
|
||||
* `new_igws_counter'.
|
||||
* On error -1 is returned.
|
||||
*/
|
||||
int unpack_igws(char *pack, size_t pack_sz,
|
||||
@ -1436,7 +1438,7 @@ int unpack_igws(char *pack, size_t pack_sz,
|
||||
{
|
||||
struct inet_gw_pack_hdr *hdr;
|
||||
inet_gw *igw, **igws;
|
||||
|
||||
|
||||
size_t sz;
|
||||
int i, lvl=0, *igws_counter;
|
||||
char *buf;
|
||||
@ -1446,7 +1448,7 @@ int unpack_igws(char *pack, size_t pack_sz,
|
||||
sz=IGWS_PACK_SZ(hdr);
|
||||
|
||||
/* Verify the package header */
|
||||
if(sz != pack_sz || sz > MAX_IGWS_PACK_SZ(levels) ||
|
||||
if(sz != pack_sz || sz > MAX_IGWS_PACK_SZ(levels) ||
|
||||
hdr->levels > levels) {
|
||||
debug(DBG_NORMAL, "Malformed igws package");
|
||||
return -1;
|
||||
@ -1466,7 +1468,7 @@ int unpack_igws(char *pack, size_t pack_sz,
|
||||
buf+=INET_GW_PACK_SZ;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
*new_igws=igws;
|
||||
*new_igws_counter=igws_counter;
|
||||
return 0;
|
||||
|
||||
10
src/log.c
10
src/log.c
@ -2,7 +2,7 @@
|
||||
* (c) Copyright 2005 Andrea Lo Pumo aka AlpT <alpt@freaknet.org>
|
||||
*
|
||||
* This source code is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License as published
|
||||
* 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.
|
||||
*
|
||||
@ -56,7 +56,7 @@ void log_init(char *prog, int dbg, int log_stderr)
|
||||
*
|
||||
* If `filename' is not null, it is opened and set as the logfile.
|
||||
* When `filename' is null, it just updates the `log_fd' global variable.
|
||||
*
|
||||
*
|
||||
* On errors it returns -1;
|
||||
*/
|
||||
int log_to_file(char *filename)
|
||||
@ -71,7 +71,7 @@ int log_to_file(char *filename)
|
||||
|
||||
if(!(log_file=fopen(filename, "w"))) {
|
||||
log_fd=stderr;
|
||||
error("Cannot open the \"%s\" logfile: %s",
|
||||
error("Cannot open the \"%s\" logfile: %s",
|
||||
filename, strerror(errno));
|
||||
return -1;
|
||||
}
|
||||
@ -131,7 +131,7 @@ void error(const char *fmt,...)
|
||||
str[1]=' ';
|
||||
strncpy(str+2, fmt, strlen(fmt));
|
||||
str[strlen(fmt)+2]=0;
|
||||
|
||||
|
||||
va_start(args, fmt);
|
||||
print_log(LOG_ERR, str, args);
|
||||
va_end(args);
|
||||
@ -147,7 +147,7 @@ void loginfo(const char *fmt,...)
|
||||
str[1]=' ';
|
||||
strncpy(str+2, fmt, strlen(fmt));
|
||||
str[strlen(fmt)+2]=0;
|
||||
|
||||
|
||||
va_start(args, fmt);
|
||||
print_log(LOG_INFO, str, args);
|
||||
va_end(args);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user