stuff
This commit is contained in:
Jack Halford
parent
8b934533d6
commit
ac1def2a8a
7 changed files with 263 additions and 163 deletions
2
nmap/.gitignore
vendored
2
nmap/.gitignore
vendored
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@ -1 +1 @@
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ft_ping
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ft_nmap
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@ -12,7 +12,7 @@
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SHELL := bash
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NAME = ft_ping
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NAME = ft_nmap
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CC = gcc
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W_FLAGS = -Wall -Wextra -Werror
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@ -31,7 +31,8 @@ INC_DIR = includes/
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OBJ_DIR = objs/
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SRC_BASE = \
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ping.c\
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main.c\
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nmap.c\
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SRCS = $(addprefix $(SRC_DIR), $(SRC_BASE))
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OBJS = $(addprefix $(OBJ_DIR), $(SRC_BASE:.c=.o))
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@ -47,7 +48,7 @@ $(NAME): $(LIBFT_LIB) $(OBJ_DIR) $(OBJS) $(CLIENT_OBJ)
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-I $(INC_DIR) \
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-I $(LIBFT_INC) \
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$(LIBFT_LIB) $(CLIENT_OBJ) $(FLAGS) \
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-lm
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-lm -lpcap
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@printf "\r\033[38;5;117m✓ MAKE $@ \033[0m\033[K\n"
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$(LIBFT_LIB):
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@ -61,7 +62,7 @@ $(OBJ_DIR)%.o : $(SRC_DIR)%.c | $(OBJ_DIR)
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@$(eval PERCENT=$(shell echo $$(($(INDEX)*100/$(NB)))))
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@$(eval TO_DO=$(shell echo $$((20-$(INDEX)*20/$(NB) - 1))))
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@$(eval COLOR=$(shell list=(160 196 202 208 215 221 226 227 190 154 118 82 46); index=$$(($(PERCENT) * $${#list[@]} / 100)); echo "$${list[$$index]}"))
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@printf "\r\033[38;5;%dm⌛ [%s]: %2d%% `printf '█%.0s' {0..$(DONE)}`%*s❙%*.*s\033[0m\033[K" $(COLOR) ft_p $(PERCENT) $(TO_DO) "" $(DELTA) $(DELTA) "$(shell echo "$@" | sed 's/^.*\///')"
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@printf "\r\033[38;5;%dm⌛ [%s]: %2d%% `printf '█%.0s' {0..$(DONE)}`%*s❙%*.*s\033[0m\033[K" $(COLOR) $(NAME) $(PERCENT) $(TO_DO) "" $(DELTA) $(DELTA) "$(shell echo "$@" | sed 's/^.*\///')"
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@$(CC) $(FLAGS) $(OBJ_FLAG) -MMD -c $< -o $@\
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-I $(INC_DIR)\
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-I $(LIBFT_INC)
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@ -23,14 +23,33 @@
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# include <netinet/in.h>
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# include <netinet/ip.h>
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# include <netinet/ip_icmp.h>
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# include <netinet/if_ether.h>
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# include <arpa/inet.h>
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# include <pcap.h>
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# include <sys/wait.h>
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#define PACKETSIZE 64
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# define SCAN_TCP (1 << 0)
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# define SCAN_SYN (1 << 1)
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# define SCAN_NULL (1 << 2)
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# define SCAN_ACK (1 << 3)
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# define SCAN_FIN (1 << 4)
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# define SCAN_XMAS (1 << 5)
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# define SCAN_UDP (1 << 6)
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struct s_packet
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typedef struct s_data t_data;
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struct s_data
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{
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struct icmp hdr;
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char msg[PACKETSIZE - sizeof(struct icmp)];
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t_flag flag;
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char **av_data;
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char *host;
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t_list *port;
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int threads;
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int scan;
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};
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static t_cliopts g_opts[];
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void nmap(t_data *data);
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#endif
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92
nmap/srcs/main.c
Normal file
92
nmap/srcs/main.c
Normal file
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@ -0,0 +1,92 @@
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#include "nmap.h"
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#define NMAP_USAGE1 " [--ip HOST] [--file FILE]"
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#define NMAP_USAGE2 " [--ports PORTS] [--speedup [NOMBRE]] [--scan [TYPE]] HOST"
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int nmap_get_host(char *opt_arg, t_data *data)
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{
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data->host = opt_arg;
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return (0);
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}
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/* int nmap_get_file(char *opt_arg, t_data *data) */
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/* { */
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/* } */
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/* int nmap_get_ports(char *opt_arg, t_data *data) */
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/* { */
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/* } */
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int nmap_get_threads(char *opt_arg, t_data *data)
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{
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data->threads = ft_atoi(opt_arg);
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return (0);
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}
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int nmap_get_scan(char *opt_arg, t_data *data)
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{
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while (*opt_arg)
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{
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if (*opt_arg == 'T')
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data->scan |= SCAN_TCP;
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else if (*opt_arg == 'S')
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data->scan |= SCAN_SYN;
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else if (*opt_arg == 'N')
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data->scan |= SCAN_NULL;
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else if (*opt_arg == 'A')
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data->scan |= SCAN_ACK;
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else if (*opt_arg == 'F')
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data->scan |= SCAN_FIN;
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else if (*opt_arg == 'X')
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data->scan |= SCAN_XMAS;
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else if (*opt_arg == 'U')
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data->scan |= SCAN_UDP;
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else
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return (1);
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opt_arg++;
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}
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return (0);
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}
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static t_cliopts g_opts[] =
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{
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{'i', "ip", 0, 0, nmap_get_host, 0},
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/* {'f', "file", 0, 0, nmap_get_file, 0}, */
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/* {'p', "ports", 0, 0, nmap_get_ports, 0}, */
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{'t', "threads", 0, 0, nmap_get_threads, 0},
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{'s', "scan", 0, 0, nmap_get_scan, 0},
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{0, 0, 0, 0, 0, 0},
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};
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int nmap_parse(int ac, char **av, t_data *data)
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{
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(void)ac;
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data->host = NULL;
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data->port = 0;
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data->threads = 0;
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data->scan = 0;
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if (cliopts_get(av, g_opts, data))
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return (ft_perror("nmap"));
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if (!data->host && data->av_data)
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data->host = *data->av_data;
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if (!data->scan)
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data->scan = SCAN_TCP;
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return (0);
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}
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int main(int ac, char **av)
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{
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t_data data;
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if (nmap_parse(ac, av, &data))
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{
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printf("usage: nmap --help\n");
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printf("or nmap"NMAP_USAGE1 NMAP_USAGE2"\n");
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exit(1);
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}
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nmap(&data);
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return (0);
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}
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68
nmap/srcs/nmap.c
Normal file
68
nmap/srcs/nmap.c
Normal file
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@ -0,0 +1,68 @@
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/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* nmap.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2017/04/22 14:10:24 by jhalford #+# #+# */
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/* Updated: 2017/04/23 18:18:41 by jhalford ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "nmap.h"
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int nmap_scan_syn(int sockfd, struct addrinfo *p)
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{
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if (connect(sockfd, p->ai_addr, p->ai_addrlen))
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printf("connect failed");
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else
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printf("connect success");
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return (0);
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}
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int nmap_scan(char *host, int port, int scan)
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{
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struct sockaddr_in *addr;
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struct addrinfo *servinfo, hints;
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char addrstr[INET_ADDRSTRLEN];
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int sockfd;
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memset (&hints, 0, sizeof (hints));
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hints.ai_family = PF_UNSPEC;
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hints.ai_socktype = SOCK_RAW;
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hints.ai_flags = AI_CANONNAME;
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(void)scan;
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printf("SCAN @ %s:%i\n", host, port);
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if (getaddrinfo(host, "http", &hints, &servinfo))
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{
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fprintf(stderr, "Failed to resolve \"%s\"\n", host);
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return (1);
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}
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addr = (struct sockaddr_in*)servinfo->ai_addr;
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inet_ntop(AF_INET, &(addr->sin_addr), addrstr, INET_ADDRSTRLEN);
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/* MUST DO AND rDNS search here */
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/* printf("rDNS record for %s: %s\n", addrstr, DOMAIN NAME WITH RDNS); */
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if ((sockfd = socket(AF_INET, SOCK_RAW, IPPROTO_TCP)) == -1)
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perror("server: socket");
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nmap_scan_syn(sockfd);
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freeaddrinfo(servinfo);
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return (0);
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}
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void nmap(t_data *data)
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{
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while (data->host)
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{
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nmap_scan(data->host, 80, SCAN_TCP);
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break ;
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}
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}
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154
nmap/srcs/ping.c
154
nmap/srcs/ping.c
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@ -1,154 +0,0 @@
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/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* main.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2017/04/22 14:10:24 by jhalford #+# #+# */
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/* Updated: 2017/04/23 18:18:41 by jhalford ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "ping.h"
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int g_pid=-1;
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int g_pkt_rec=0;
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char g_domain[256];
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struct s_stats g_rs;
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unsigned short ping_cksum(void *b, int len)
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{
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unsigned short *buf = b;
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unsigned int sum=0;
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for (sum = 0; len > 1; len -= 2)
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sum += *((unsigned short*)buf++);
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if (len == 1)
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sum += *(unsigned char*)buf;
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sum = (sum >> 16) + (sum & 0xFFFF);
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return (~(sum + (sum >> 16)));
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}
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void display(void *buf, int bytes, struct sockaddr_in *addr)
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{
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struct ip *ip = buf;
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struct icmp *icmp;
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struct s_packet *pkt;
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int hlen;
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char addrstr[INET_ADDRSTRLEN];
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struct timeval start, end, triptime;
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double diff;
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(void)bytes;
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hlen = ip->ip_hl << 2;
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pkt = (struct s_packet*)(buf + hlen);
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icmp = &pkt->hdr;
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start = *(struct timeval*)&pkt->msg;
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if (icmp->icmp_id != g_pid)
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return ;
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if (gettimeofday(&end, NULL) != 0)
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return ;
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timersub(&end, &start, &triptime);
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diff = (triptime.tv_sec + triptime.tv_usec / 1000000.0) * 1000.0;
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rs_push(diff);
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g_pkt_rec++;
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printf("%d bytes from %s: icmp_seq=%d ttl=%i time=%.3f ms\n",
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ip->ip_len,
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inet_ntop(AF_INET, &(addr->sin_addr), addrstr, INET_ADDRSTRLEN),
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icmp->icmp_seq, ip->ip_ttl, diff);
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}
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void ping(struct sockaddr_in *addr)
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{
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const int val = 255;
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int i;
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int sd;
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int cnt;
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struct s_packet pkt;
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struct timeval time;
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if ((sd = socket(PF_INET, SOCK_RAW, IPPROTO_ICMP)) < 0)
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return (perror("sender socket"));
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if (setsockopt(sd, 0, IP_TTL, &val, sizeof(val)) != 0)
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perror("set TTL option");
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cnt = 0;
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while (1)
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{
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bzero(&pkt, sizeof(pkt));
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pkt.hdr.icmp_type = ICMP_ECHO;
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pkt.hdr.icmp_id = g_pid;
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pkt.hdr.icmp_seq = cnt++;
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for (i=0; i < (int)sizeof(pkt.msg); i++)
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pkt.msg[i] = i+'0';
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pkt.msg[i] = 0;
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if (gettimeofday(&time, NULL) != 0)
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return ;
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ft_memcpy(pkt.msg, (void*)&time, sizeof(time));
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time = *(struct timeval*)&pkt.msg;
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pkt.hdr.icmp_cksum = ping_cksum(&pkt, sizeof(pkt));
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if (sendto(sd, &pkt, sizeof(pkt), 0, (struct sockaddr*)addr, sizeof(*addr)) <= 0)
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perror("sendto");
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sleep(1);
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}
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}
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void stats_recap(int signo)
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{
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double loss;
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(void)signo;
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rs_calcmore();
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loss = g_rs.count ? 100 * ((float) (g_rs.count - g_pkt_rec) / (float)g_rs.count) : 0;
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printf("\n--- %s ping statistics ---", g_domain);
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printf("\n%d packets transmitted, %d packets received, %0.1f%% packet loss", g_rs.count, g_pkt_rec, loss);
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printf("\nround-trip min/avg/max/stddev = %.3f/%.3f/%.3f/%.3f ms", g_rs.min, g_rs.avg, g_rs.max, g_rs.stdev);
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exit(0);
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}
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int main(int ac, char **av)
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{
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struct sockaddr_in *addr;
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struct addrinfo *result, hints;
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char addrstr[INET_ADDRSTRLEN];
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if (ac != 2)
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{
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printf("usage: %s <addr>\n", av[0]);
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exit(1);
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}
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memset (&hints, 0, sizeof (hints));
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hints.ai_family = PF_UNSPEC;
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hints.ai_socktype = SOCK_STREAM;
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hints.ai_flags |= AI_CANONNAME;
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if (getaddrinfo(av[1], NULL, &hints, &result) != 0)
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{
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perror("getaddrinfo");
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exit(1);
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}
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addr = (struct sockaddr_in*)result->ai_addr;
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inet_ntop(AF_INET, &(addr->sin_addr), addrstr, INET_ADDRSTRLEN);
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g_pid = getpid();
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ft_strcpy(g_domain, addrstr);
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if (result->ai_canonname)
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ft_strcpy(g_domain, result->ai_canonname);
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printf("PING %s (%s): %i data bytes\n", FT_TRY(result->ai_canonname, addrstr), addrstr, 64);
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if (fork() == 0)
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{
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signal(SIGINT, stats_recap);
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rs_clear();
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listener(PF_INET, SOCK_RAW, IPPROTO_ICMP, &display);
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}
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else
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{
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ping(addr);
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wait(0);
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}
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return (0);
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}
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74
nmap/testpcap3.c
Normal file
74
nmap/testpcap3.c
Normal file
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@ -0,0 +1,74 @@
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/**********************************************************************
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* file: testpcap3.c
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* date: Sat Apr 07 23:23:02 PDT 2001
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* Author: Martin Casado
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* Last Modified:2001-Apr-07 11:23:05 PM
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*
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* Investigate using filter programs with pcap_compile() and
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* pcap_setfilter()
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*
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**********************************************************************/
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#include <pcap.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <netinet/if_ether.h>
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/* just print a count every time we have a packet... */
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void my_callback(u_char *useless,const struct pcap_pkthdr* pkthdr,const u_char*
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packet)
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{
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static int count = 1;
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fprintf(stdout,"%d, ",count);
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fflush(stdout);
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count++;
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}
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int main(int argc,char **argv)
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{
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int i;
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char *dev;
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char errbuf[PCAP_ERRBUF_SIZE];
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pcap_t* descr;
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const u_char *packet;
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struct pcap_pkthdr hdr; /* pcap.h */
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struct ether_header *eptr; /* net/ethernet.h */
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struct bpf_program fp; /* hold compiled program */
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bpf_u_int32 maskp; /* subnet mask */
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bpf_u_int32 netp; /* ip */
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if(argc != 2){ fprintf(stdout,"Usage: %s \"filter program\"\n"
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,argv[0]);return 0;}
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/* grab a device to peak into... */
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dev = pcap_lookupdev(errbuf);
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if(dev == NULL)
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{ fprintf(stderr,"%s\n",errbuf); exit(1); }
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/* ask pcap for the network address and mask of the device */
|
||||
pcap_lookupnet(dev,&netp,&maskp,errbuf);
|
||||
|
||||
/* open device for reading this time lets set it in promiscuous
|
||||
* mode so we can monitor traffic to another machine */
|
||||
descr = pcap_open_live(dev,BUFSIZ,1,-1,errbuf);
|
||||
if(descr == NULL)
|
||||
{ printf("pcap_open_live(): %s\n",errbuf); exit(1); }
|
||||
|
||||
/* Lets try and compile the program.. non-optimized */
|
||||
if(pcap_compile(descr,&fp,argv[1],0,netp) == -1)
|
||||
{ fprintf(stderr,"Error calling pcap_compile\n"); exit(1); }
|
||||
|
||||
/* set the compiled program as the filter */
|
||||
if(pcap_setfilter(descr,&fp) == -1)
|
||||
{ fprintf(stderr,"Error setting filter\n"); exit(1); }
|
||||
|
||||
/* ... and loop */
|
||||
pcap_loop(descr,-1,my_callback,NULL);
|
||||
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in a new issue