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send_cmd() retrun value bugfix + minor debug changes

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This commit is contained in:
Joseph Henry 2015-12-14 14:45:25 -08:00
parent f558b088e6
commit a421e31dd5
4 changed files with 12 additions and 11 deletions
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8
make-linux.mk
View File

@ -105,10 +105,10 @@ netcon: $(OBJS)
ln -sf zerotier-netcon-service zerotier-cli
ln -sf zerotier-netcon-service zerotier-idtool
#install-intercept:
# cp libzerotierintercept.so /lib/libzerotierintercept.so
# ln -sf /lib/libzerotierintercept.so /lib/libzerotierintercept
# /usr/bin/install -c netcon/zerotier-intercept /usr/bin
install-intercept:
cp libzerotierintercept.so /lib/libzerotierintercept.so
ln -sf /lib/libzerotierintercept.so /lib/libzerotierintercept
/usr/bin/install -c netcon/zerotier-intercept /usr/bin
#uninstall-intercept:
# rm -r /lib/libzerotierintercept.so

5
netcon/Intercept.c
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@ -138,7 +138,7 @@ static void checkpid()
return;
if (thispid != getpid()) {
printf("clone/fork detected. re-initializing this instance.\n");
dwr(MSG_DEBUG, "checkpid(): clone/fork detected. Re-initializing this instance.\n");
set_up_intercept();
fdret_sock = init_service_connection();
thispid = getpid();
@ -216,12 +216,11 @@ static int send_cmd(int rpc_fd, char *cmd)
#endif
/* Combine command flag+payload with RPC metadata */
memcpy(&metabuf[IDX_PAYLOAD], cmd, PAYLOAD_SZ);
usleep(1000);
usleep(100000);
int n_write = write(rpc_fd, &metabuf, BUF_SZ);
if(n_write < 0){
dwr(MSG_DEBUG,"Error writing command to service (CMD = %d)\n", cmd[0]);
errno = 0;
return -1;
}
int ret = ERR_OK;

2
netcon/NetconEthernetTap.cpp
View File

@ -848,6 +848,8 @@ err_t NetconEthernetTap::nc_accept(void *arg, struct tcp_pcb *newpcb, err_t err)
dwr(MSG_DEBUG, " nc_accept(): socketpair = {%d, %d}\n", fds[0], fds[1]);
int send_fd = tap->_phy.getDescriptor(conn->rpcSock);
dwr(MSG_DEBUG, "nc_accept(): sending %d via %d\n", fds[1], listening_fd);
if(sock_fd_write(listening_fd, fds[1]) < 0){
dwr(MSG_ERROR, " nc_accept(%d): error writing signal byte (listen_fd = %d, perceived_fd = %d)\n", listening_fd, send_fd, fds[1]);
return -1;

8
netcon/common.inc.c
View File

@ -39,9 +39,9 @@
#include <fcntl.h>
#define DEBUG_LEVEL 0
#define DEBUG_LEVEL 4
#define MSG_WARNING 0
#define MSG_WARNING 4
#define MSG_ERROR 1 // Errors
#define MSG_INFO 2 // Information which is generally useful to any user
#define MSG_DEBUG 3 // Information which is only useful to someone debugging
@ -171,7 +171,7 @@ static ssize_t sock_fd_read(int sock, void *buf, ssize_t bufsize, int *fd)
msg.msg_controllen = sizeof(cmsgu.control);
size = recvmsg (sock, &msg, 0);
if (size < 0) {
perror ("recvmsg");
dwr(MSG_DEBUG, "sock_fd_read(): recvmsg: Error\n");
return -1;
}
cmsg = CMSG_FIRSTHDR(&msg);
@ -190,7 +190,7 @@ static ssize_t sock_fd_read(int sock, void *buf, ssize_t bufsize, int *fd)
} else {
size = read (sock, buf, bufsize);
if (size < 0) {
perror("read");
dwr(MSG_DEBUG, "sock_fd_read(): read: Error\n");
return -1;
}
}